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Groups > sci.space.policy > #60476 > unrolled thread
| Started by | "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> |
|---|---|
| First post | 2017-07-03 08:31 -0400 |
| Last post | 2017-11-25 20:25 -0800 |
| Articles | 20 on this page of 313 — 26 participants |
Back to article view | Back to sci.space.policy
Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-03 08:31 -0400
Re: Towards the *fully* 3D-printed electric cars. bitrex <bitrex@de.lete.earthlink.net> - 2017-07-03 09:04 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-03 17:04 +0000
Re: Towards the *fully* 3D-printed electric cars. Jeff Findley <jfindley@cinci.nospam.rr.com> - 2017-07-03 14:04 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-03 18:28 +0000
Re: Towards the *fully* 3D-printed electric cars. Jeff Findley <jfindley@cinci.nospam.rr.com> - 2017-07-03 16:14 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-03 20:57 +0000
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-03 16:14 -0700
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-04 00:45 +0000
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-03 20:11 -0700
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-04 04:55 +0000
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-04 02:29 -0700
Re: Towards the *fully* 3D-printed electric cars. albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2017-11-23 16:14 +0100
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-04 06:49 +0100
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-04 18:02 +0000
Re: Towards the *fully* 3D-printed electric cars. JF Mezei <jfmezei.spamnot@vaxination.ca> - 2017-07-04 22:59 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-05 04:51 +0000
Re: Towards the *fully* 3D-printed electric cars. John Larkin <jjlarkin@highlandtechnology.com> - 2017-07-04 21:33 -0700
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-05 07:16 +0100
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-05 16:47 +0000
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-05 11:08 -0700
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-05 21:02 -0400
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-05 19:12 -0700
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-05 22:16 -0400
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-05 23:30 -0700
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-06 09:35 +0100
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-06 10:05 -0700
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-06 21:20 -0400
Re: Towards the *fully* 3D-printed electric cars. Sегg io <innvalid@invalid.com> - 2017-07-07 08:03 -0500
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-06 21:19 -0400
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-04 23:05 -0700
Re: Towards the *fully* 3D-printed electric cars. Greg Goss <gossg@gossg.org> - 2017-07-04 20:08 -0600
Re: Towards the *fully* 3D-printed electric cars. Jeff Findley <jfindley@cinci.nospam.rr.com> - 2017-07-04 09:11 -0400
Re: Towards the *fully* 3D-printed electric cars. JF Mezei <jfmezei.spamnot@vaxination.ca> - 2017-07-04 11:47 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-04 18:19 +0000
Re: Towards the *fully* 3D-printed electric cars. JF Mezei <jfmezei.spamnot@vaxination.ca> - 2017-07-04 23:04 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-05 04:56 +0000
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-04 23:16 -0700
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-04 18:12 +0000
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-05 07:20 +0100
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-05 16:54 +0000
Re: Towards the *fully* 3D-printed electric cars. Jeff Findley <jfindley@cinci.nospam.rr.com> - 2017-07-05 18:42 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-05 23:07 +0000
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-06 09:30 +0100
Re: Towards the *fully* 3D-printed electric cars. Jeff Findley <jfindley@cinci.nospam.rr.com> - 2017-07-06 06:35 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-06 16:34 +0000
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-06 21:25 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-07 04:56 +0000
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-07 02:09 -0700
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-07 20:18 -0400
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-07 06:19 +0100
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-07 17:13 +0000
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-08 06:49 +0100
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-08 17:13 +0000
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-09 07:12 +0100
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-09 17:44 +0000
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-09 12:48 -0700
Re: Towards the *fully* 3D-printed electric cars. Sегg io <innvalid@invalid.com> - 2017-07-09 23:27 -0500
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-10 07:11 +0100
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-10 16:30 +0000
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-11 06:49 +0100
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-11 17:47 +0000
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-11 13:15 -0700
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-11 16:27 -0400
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-11 14:46 -0700
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-11 18:36 -0400
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-11 18:20 -0700
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-11 21:31 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-11 22:12 +0000
Re: Towards the *fully* 3D-printed electric cars. Spehro Pefhany <speffSNIP@interlogDOTyou.knowwhat> - 2017-07-11 19:01 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-12 02:24 +0000
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-11 22:44 -0700
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-12 10:24 -0400
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-13 20:57 -0400
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-13 23:17 -0700
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-14 17:42 -0400
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-14 16:11 -0700
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-11 18:21 -0700
Re: Towards the *fully* 3D-printed electric cars. Jeff Findley <jfindley@cinci.nospam.rr.com> - 2017-07-12 07:28 -0400
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-12 05:10 -0700
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-12 17:45 +0000
Re: Towards the *fully* 3D-printed electric cars. Serg io <invaalid@invalid.com> - 2017-07-12 18:39 -0500
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-12 21:29 -0700
Re: Towards the *fully* 3D-printed electric cars. Serg io <invaalid@invalid.com> - 2017-07-13 20:27 -0500
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-13 23:22 -0700
Re: Towards the *fully* 3D-printed electric cars. Serg io <invaalid@invalid.com> - 2017-07-14 11:55 -0500
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-13 21:01 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-14 02:11 +0000
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-13 22:56 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-14 05:03 +0000
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-14 17:50 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-14 23:49 +0000
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-14 23:04 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-15 05:02 +0000
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-15 08:51 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-15 17:23 +0000
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-15 18:08 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-16 02:02 +0000
Re: Towards the *fully* 3D-printed electric cars. Greg Goss <gossg@gossg.org> - 2017-07-16 12:53 -0600
Re: Towards the *fully* 3D-printed electric cars. Serg io <invaalid@invalid.com> - 2017-07-17 13:04 -0500
Re: Towards the *fully* 3D-printed electric cars. Jeff Findley <jfindley@cinci.nospam.rr.com> - 2017-07-16 09:51 -0400
Re: Towards the *fully* 3D-printed electric cars. Serg io <invaalid@invalid.com> - 2017-07-16 11:04 -0500
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-16 17:55 +0000
Re: Towards the *fully* 3D-printed electric cars. Jeff Findley <jfindley@cinci.nospam.rr.com> - 2017-07-16 16:15 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-16 20:26 +0000
Re: Towards the *fully* 3D-printed electric cars. Greg Goss <gossg@gossg.org> - 2017-07-16 15:32 -0600
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-16 22:08 +0000
Re: Towards the *fully* 3D-printed electric cars. John Larkin <jjlarkin@highlandtechnology.com> - 2017-07-16 15:21 -0700
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-16 22:53 +0000
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-16 17:00 -0700
Re: Towards the *fully* 3D-printed electric cars. Serg io <invaalid@invalid.com> - 2017-07-17 09:06 -0500
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-17 20:23 -0400
Re: Towards the *fully* 3D-printed electric cars. Greg Goss <gossg@gossg.org> - 2017-07-16 15:27 -0600
Re: Towards the *fully* 3D-printed electric cars. Jeff Findley <jfindley@cinci.nospam.rr.com> - 2017-07-16 17:39 -0400
Re: Towards the *fully* 3D-printed electric cars. "Michael A. Terrell" <mike.terrell@earthlink.net> - 2017-07-17 09:46 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-16 22:16 +0000
Re: Towards the *fully* 3D-printed electric cars. Lofty Goat <rlwatkins@gmail.com> - 2017-07-16 13:04 -0500
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-12 07:04 +0100
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-12 17:48 +0000
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-13 06:50 +0100
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-13 17:29 +0000
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-14 05:51 +0100
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-14 05:11 +0000
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-15 06:36 +0100
Re: Towards the *fully* 3D-printed electric cars. Greg Goss <gossg@gossg.org> - 2017-07-15 00:27 -0600
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-15 08:52 -0400
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-16 06:40 +0100
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-16 16:02 -0400
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-17 06:02 +0100
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-17 20:31 -0400
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-18 06:32 +0100
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-18 21:10 -0400
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-19 05:08 +0100
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-19 20:17 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-20 01:11 +0000
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-20 06:23 +0100
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-20 03:35 -0700
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-20 05:56 +0100
Re: Towards the *fully* 3D-printed electric cars. Serg io <invaalid@invalid.com> - 2017-07-20 10:18 -0500
Re: Towards the *fully* 3D-printed electric cars. Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2017-07-20 11:34 -0400
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-20 16:25 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-20 20:42 +0000
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-20 16:40 -0700
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-20 19:54 -0400
Re: Towards the *fully* 3D-printed electric cars. Serg io <invaalid@invalid.com> - 2017-07-20 19:15 -0500
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-20 20:38 -0400
Re: Towards the *fully* 3D-printed electric cars. Jeff Findley <jfindley@cinci.nospam.rr.com> - 2017-07-21 07:01 -0400
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-20 16:24 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-15 17:26 +0000
Re: Towards the *fully* 3D-printed electric cars. Lofty Goat <rlwatkins@gmail.com> - 2017-07-15 11:33 -0500
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-15 17:39 +0000
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-13 21:03 -0400
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-13 23:19 -0700
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-14 17:52 -0400
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-14 16:12 -0700
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-14 19:54 -0400
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-14 09:43 +0100
Re: Towards the *fully* 3D-printed electric cars. "Greg \(Strider\) Moore" <mooregr@deletethisgreenms.com> - 2017-07-13 09:30 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-13 17:37 +0000
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-13 21:07 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-14 02:18 +0000
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-13 22:59 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-14 05:07 +0000
Re: Towards the *fully* 3D-printed electric cars. The Starmaker <starmaker@ix.netcom.com> - 2017-07-14 13:59 -0700
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-14 17:55 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-14 23:53 +0000
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-14 23:07 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-15 05:06 +0000
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-14 23:17 -0700
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-15 08:57 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-15 17:53 +0000
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-15 18:12 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-16 02:07 +0000
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-16 03:13 -0700
Re: Towards the *fully* 3D-printed electric cars. Jeff Findley <jfindley@cinci.nospam.rr.com> - 2017-07-14 07:14 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-14 17:11 +0000
Re: Towards the *fully* 3D-printed electric cars. Jeff Findley <jfindley@cinci.nospam.rr.com> - 2017-07-14 20:09 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-15 02:14 +0000
Re: Towards the *fully* 3D-printed electric cars. JF Mezei <jfmezei.spamnot@vaxination.ca> - 2017-07-14 23:09 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-15 05:13 +0000
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-14 23:19 -0700
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-15 06:57 +0100
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-15 18:19 +0000
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-16 07:06 +0100
Re: Towards the *fully* 3D-printed electric cars. Greg Goss <gossg@gossg.org> - 2017-07-16 14:06 -0600
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-16 20:29 +0000
Re: Towards the *fully* 3D-printed electric cars. Greg Goss <gossg@gossg.org> - 2017-07-15 00:33 -0600
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-15 16:11 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-15 21:27 +0000
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-15 18:17 -0400
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-15 22:30 -0400
Re: Towards the *fully* 3D-printed electric cars. "Greg \(Strider\) Moore" <mooregr@deletethisgreenms.com> - 2017-07-15 22:07 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-16 03:15 +0000
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-16 07:16 +0100
Re: Towards the *fully* 3D-printed electric cars. Serg io <invaalid@invalid.com> - 2017-07-16 11:45 -0500
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-16 18:13 +0000
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-16 16:33 -0700
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-16 18:09 +0000
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-17 06:11 +0100
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-17 16:46 +0000
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-17 22:24 +0100
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-17 21:53 +0000
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-18 06:38 +0100
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-18 17:35 +0000
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-18 20:26 +0100
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-18 20:12 +0000
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-18 22:12 +0100
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-19 00:49 +0000
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-19 05:30 +0100
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-19 04:54 +0000
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-19 06:34 +0100
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-19 16:14 +0000
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-19 17:24 +0100
Re: Towards the *fully* 3D-printed electric cars. Greg Goss <gossg@gossg.org> - 2017-07-19 00:00 -0600
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-19 20:21 -0400
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-21 08:00 -0400
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-21 09:08 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-21 17:14 +0000
Re: Towards the *fully* 3D-printed electric cars. Greg Goss <gossg@gossg.org> - 2017-07-16 13:21 -0600
Re: Towards the *fully* 3D-printed electric cars. "Greg \(Strider\) Moore" <mooregr@deletethisgreenms.com> - 2017-07-14 09:01 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-14 17:15 +0000
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-14 16:10 -0700
Re: Towards the *fully* 3D-printed electric cars. "Greg \(Strider\) Moore" <mooregr@deletethisgreenms.com> - 2017-07-15 22:11 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-16 03:23 +0000
Re: Towards the *fully* 3D-printed electric cars. Jeff Findley <jfindley@cinci.nospam.rr.com> - 2017-07-16 09:58 -0400
Re: Towards the *fully* 3D-printed electric cars. Serg io <invaalid@invalid.com> - 2017-07-16 12:05 -0500
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-16 18:15 +0000
Re: Towards the *fully* 3D-printed electric cars. "Greg \(Strider\) Moore" <mooregr@deletethisgreenms.com> - 2017-07-16 10:56 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-16 18:19 +0000
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-16 16:36 -0700
Re: Towards the *fully* 3D-printed electric cars. Jeff Findley <jfindley@cinci.nospam.rr.com> - 2017-07-05 08:19 -0400
Re: Towards the *fully* 3D-printed electric cars. JF Mezei <jfmezei.spamnot@vaxination.ca> - 2017-07-05 10:39 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-05 16:59 +0000
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-05 11:11 -0700
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-05 21:11 -0400
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-05 19:28 -0700
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-06 21:32 -0400
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-06 19:38 -0700
Re: Towards the *fully* 3D-printed electric cars. Greg Goss <gossg@gossg.org> - 2017-07-09 21:55 -0600
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-10 12:31 -0400
Re: Towards the *fully* 3D-printed electric cars. Sегg io <innvalid@invalid.com> - 2017-07-10 12:25 -0500
Re: Towards the *fully* 3D-printed electric cars. jmfbahciv <See.above@aol.com> - 2017-07-11 13:00 +0000
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-10 12:44 -0700
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-10 18:21 -0400
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-10 16:44 -0700
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-10 19:52 -0400
Re: Towards the *fully* 3D-printed electric cars. David Mitchell <david.robot.mitchell@gmail.com> - 2017-07-06 09:33 +0100
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-06 03:29 -0400
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-05 21:04 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-06 01:22 +0000
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-05 22:18 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-06 05:06 +0000
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-06 21:36 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-07 05:00 +0000
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-07 20:25 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-08 00:40 +0000
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-07 17:53 -0700
Re: Towards the *fully* 3D-printed electric cars. Greg Goss <gossg@gossg.org> - 2017-07-09 21:56 -0600
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-10 05:08 +0000
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-09 23:06 -0700
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-10 12:38 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-10 17:31 +0000
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-10 12:47 -0700
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-10 18:22 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-10 22:35 +0000
Re: Towards the *fully* 3D-printed electric cars. Jeff Liebermann <jeffl@cruzio.com> - 2017-07-07 13:41 -0700
Re: Towards the *fully* 3D-printed electric cars. Thomas Koenig <tkoenig@netcologne.de> - 2017-07-05 17:47 +0000
Re: Towards the *fully* 3D-printed electric cars. JF Mezei <jfmezei.spamnot@vaxination.ca> - 2017-07-03 22:55 -0400
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-03 20:16 -0700
Re: Towards the *fully* 3D-printed electric cars. Peter Stickney <p_stickney@verizon.net> - 2017-07-13 19:01 -0400
Re: Towards the *fully* 3D-printed electric cars. Greg Goss <gossg@gossg.org> - 2017-07-04 20:04 -0600
Re: Towards the *fully* 3D-printed electric cars. Jeff Findley <jfindley@cinci.nospam.rr.com> - 2017-07-05 08:20 -0400
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-04 20:04 -0400
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-06 06:21 -0400
Re: Towards the *fully* 3D-printed electric cars. Robert Baer <robertbaer@localnet.com> - 2017-07-03 18:35 -0800
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-06 05:01 -0400
Re: Towards the *fully* 3D-printed electric cars. Sегg io <innvalid@invalid.com> - 2017-07-06 13:38 -0500
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-06 05:10 -0400
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-10 17:16 -0400
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-06 05:13 -0400
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-06 08:35 -0400
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-07 10:31 -0400
Re: Towards the *fully* 3D-printed electric cars. Greg Goss <gossg@gossg.org> - 2017-07-09 22:15 -0600
Re: Towards the *fully* 3D-printed electric cars. Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2017-07-10 10:43 +0300
Re: Towards the *fully* 3D-printed electric cars. Greg Goss <gossg@gossg.org> - 2017-07-10 21:32 -0600
Re: Towards the *fully* 3D-printed electric cars. krw@notreal.com - 2017-07-10 12:39 -0400
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-06 15:21 -0400
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-06 13:14 -0700
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-07 15:34 -0400
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-07 14:03 -0700
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-07 17:22 -0400
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-07 17:01 -0700
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-09 12:49 -0400
Re: Towards the *fully* 3D-printed electric cars. Sегg io <innvalid@invalid.com> - 2017-07-09 23:26 -0500
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-10 16:10 -0400
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-10 17:40 -0400
Re: Towards the *fully* 3D-printed electric cars. Sегg io <innvalid@invalid.com> - 2017-07-10 17:22 -0500
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-10 19:49 -0400
Re: Towards the *fully* 3D-printed electric cars. Thomas Koenig <tkoenig@netcologne.de> - 2017-07-13 20:17 +0000
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-13 21:42 +0000
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-13 20:53 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-14 02:05 +0000
Re: Towards the *fully* 3D-printed electric cars. Fred J. McCall <fjmccall@gmail.com> - 2017-07-13 23:25 -0700
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-12 10:58 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-12 17:54 +0000
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-12 15:18 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-12 20:00 +0000
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-12 11:42 -0400
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-13 04:17 -0400
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-26 13:33 -0400
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-26 17:58 +0000
Re: Towards the *fully* 3D-printed electric cars. "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> - 2017-07-26 14:08 -0400
Re: Towards the *fully* 3D-printed electric cars. William Mook <mokmedical@gmail.com> - 2017-11-25 20:25 -0800
Page 15 of 16 — ← Prev page 1 … 13 14 [15] 16 Next page →
| From | "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> |
|---|---|
| Date | 2017-07-06 08:35 -0400 |
| Message-ID | <ojlait$ba7$1@dont-email.me> |
| In reply to | #60540 |
> >Say, you wanted to make a steel engine within a machine operating volume 3 >feet wide on a side. This would require 33 = 27 of the current machines (or >a single one scaled up this size.) Say, the engine weighed 270 kilos, >that's 270,000 grams. Say the weight is equally distributed among the 27 >machines, The second sentence here should say: "This would require 3^3 = 27 of the current machines (or a single one scaled up this size.)" Bob Clark ---------------------------------------------------------------------------------------------------------------------------------- Finally, nanotechnology can now fulfill its potential to revolutionize 21st-century technology, from the space elevator, to private, orbital launchers, to 'flying cars'. This crowdfunding campaign is to prove it: Nanotech: from air to space. https://www.indiegogo.com/projects/nanotech-from-air-to-space/x/13319568/ ---------------------------------------------------------------------------------------------------------------------------------- --
[toc] | [prev] | [next] | [standalone]
| From | "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> |
|---|---|
| Date | 2017-07-07 10:31 -0400 |
| Message-ID | <ojo5p6$a3d$1@dont-email.me> |
| In reply to | #60540 |
> ... > >Say, you wanted to make a steel engine within a machine operating volume 3 >feet wide on a side. This would require 3^3 = 27 of the current machines >(or a single one scaled up this size.) Say, the engine weighed 270 kilos, >that's 270,000 grams. Say the weight is equally distributed among the 27 >machines, so 270,000/27 = 10,000 grams for each machine. >The density of steel is about 8 gms/cm3. So that's 10,000/8 = 1,250 cm3. >This would then take 1,250/8,200 =.15 hours, or 9 minutes to make the >complete engine. > >It's notable in this video the company's chief engineer says their system >could be scaled up to make an automobile chassis: > >VIDEO: How Additive Manufacturing Can Produce Metal Parts en Masse. James >Anderton posted on June 06, 2017 | >http://www.engineering.com/AdvancedManufacturing/ArticleID/15052/VIDEO-How-Additive-Manufacturing-Can-Produce-Metal-Parts-en-Masse.aspx > >One imagines also, it could be scaled up to make the complete automobile. > > I was estimating that size of the engine based on cited high horsepower for the Tesla cars. But I was surprised the mass and volume required for the Tesla electric motor is much smaller than a comparable gasoline engine. This video makes a comparison of a Tesla electric motor to a typical gas engine. The power to weight ratio is 10 times better for the Tesla electric motor(!) How does an Electric Car work ? | Tesla Model S. https://www.youtube.com/watch?v=3SAxXUIre28&t=220s The video gives the weight of the Tesla motor as 31.8 kg for 270 kW of power. The size of the motor visually looks like it just might fit within the 14"x14"x14" manufacturing box of the DeskTop Metal's Production machine, though the rotor's central driveshaft might have to be produced at an angle to make use of the full diagonal length of sqrt(3)*14" = 24" inside the box. So instead of needing 27 of the machines I estimated before, we might be able to make it with just a single one: For a 32 kg = 32,000 gm engine say of steel with a density of 8 gm/cm^3, this is 32,000/8 = 4,000 cm^3. At a production rate of about 8,000 cm^3 per hour, the Tesla engine could be produced in about a half-hour by this single machine. Bob Clark ---------------------------------------------------------------------------------------------------------------------------------- Finally, nanotechnology can now fulfill its potential to revolutionize 21st-century technology, from the space elevator, to private, orbital launchers, to 'flying cars'. This crowdfunding campaign is to prove it: Nanotech: from air to space. https://www.indiegogo.com/projects/nanotech-from-air-to-space/x/13319568/ ---------------------------------------------------------------------------------------------------------------------------------- --
[toc] | [prev] | [next] | [standalone]
| From | Greg Goss <gossg@gossg.org> |
|---|---|
| Date | 2017-07-09 22:15 -0600 |
| Message-ID | <esgdc3F2n10U2@mid.individual.net> |
| In reply to | #60570 |
"Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> wrote: >I was estimating that size of the engine based on cited high horsepower for >the Tesla cars. But I was surprised the mass and volume required for the >Tesla electric motor is much smaller than a comparable gasoline engine. This >video makes a comparison of a Tesla electric motor to a typical gas engine. >The power to weight ratio is 10 times better for the Tesla electric motor(!) > I haven't been following the Tesla and similar modern electric cars. I seem to recall that twenty years ago, they were predicting that the big advantage of electric cars would be motors IN the wheels and no transmission at all. Did anyone ever go that route? (My Ford hybrid has two electric motors and the gas engine. I am having trouble finding a good overview of the transmission, but it seems to be based on a differential concept.) -- We are geeks. Resistance is voltage over current.
[toc] | [prev] | [next] | [standalone]
| From | Tauno Voipio <tauno.voipio@notused.fi.invalid> |
|---|---|
| Date | 2017-07-10 10:43 +0300 |
| Message-ID | <ojvb03$ci0$1@dont-email.me> |
| In reply to | #60591 |
On 10.7.17 07:15, Greg Goss wrote: > "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> wrote: > >> I was estimating that size of the engine based on cited high horsepower for >> the Tesla cars. But I was surprised the mass and volume required for the >> Tesla electric motor is much smaller than a comparable gasoline engine. This >> video makes a comparison of a Tesla electric motor to a typical gas engine. >> The power to weight ratio is 10 times better for the Tesla electric motor(!) >> > > I haven't been following the Tesla and similar modern electric cars. > I seem to recall that twenty years ago, they were predicting that the > big advantage of electric cars would be motors IN the wheels and no > transmission at all. Did anyone ever go that route? The problem with the motors in the wheels is that it is going to be a bumpy ride becaus of the large mass outside of spring suspension. > (My Ford hybrid has two electric motors and the gas engine. I am > having trouble finding a good overview of the transmission, but it > seems to be based on a differential concept.) So has my Lexus. It is similar to the Toyota Prius scheme, which is pretty well described in the Net. However, Ford may have patent problems with Toyota, or they may hava a licensing agreement. -- -TV
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| From | Greg Goss <gossg@gossg.org> |
|---|---|
| Date | 2017-07-10 21:32 -0600 |
| Message-ID | <esiv7lFkvm3U1@mid.individual.net> |
| In reply to | #60597 |
Tauno Voipio <tauno.voipio@notused.fi.invalid> wrote: >On 10.7.17 07:15, Greg Goss wrote: >> (My Ford hybrid has two electric motors and the gas engine. I am >> having trouble finding a good overview of the transmission, but it >> seems to be based on a differential concept.) > >So has my Lexus. It is similar to the Toyota Prius scheme, >which is pretty well described in the Net. > >However, Ford may have patent problems with Toyota, or they >may hava a licensing agreement. I was told that the entire engine and transmission scheme was licenced from Toyota. I sometimes call it a "Ford Prius V" -- We are geeks. Resistance is voltage over current.
[toc] | [prev] | [next] | [standalone]
| From | krw@notreal.com |
|---|---|
| Date | 2017-07-10 12:39 -0400 |
| Message-ID | <2db7mc111j4li9lro2nepjqefp5nkrqas9@4ax.com> |
| In reply to | #60591 |
On Sun, 09 Jul 2017 22:15:53 -0600, Greg Goss <gossg@gossg.org> wrote: >"Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> wrote: > >>I was estimating that size of the engine based on cited high horsepower for >>the Tesla cars. But I was surprised the mass and volume required for the >>Tesla electric motor is much smaller than a comparable gasoline engine. This >>video makes a comparison of a Tesla electric motor to a typical gas engine. >>The power to weight ratio is 10 times better for the Tesla electric motor(!) >> > >I haven't been following the Tesla and similar modern electric cars. >I seem to recall that twenty years ago, they were predicting that the >big advantage of electric cars would be motors IN the wheels and no >transmission at all. Did anyone ever go that route? Unsprung weight is not a good thing. >(My Ford hybrid has two electric motors and the gas engine. I am >having trouble finding a good overview of the transmission, but it >seems to be based on a differential concept.)
[toc] | [prev] | [next] | [standalone]
| From | "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> |
|---|---|
| Date | 2017-07-06 15:21 -0400 |
| Message-ID | <ojm2c6$u33$1@dont-email.me> |
| In reply to | #60476 |
On Monday, July 3, 2017 at 8:31:23 AM UTC-4, Robert Clark wrote:
>> An article from 2015:
>>
>> 3-D-printed car could hit streets next year. Chris Woodyard, USA TODAY
>> 4:48
>> p.m. EST November 12, 2015
>> http://www.usatoday.com/story/money/cars/2015/11/10/3d-printed-car-local-motors-swim/75530830/
>>
>> Several companies have come out with what they call "3D-printed" cars,
>> but
>> none have 3D-printed the most important part, the engine.
>>
>> This would be difficult to do with an internal combustion engine, with
>> its
>> high temperatures, multiple moving parts, and high tolerances.
>
>Difficult, but not impossible. NASA has done 3-d printing of rocket
>combustion chambers.
>>
>> But it shouldn't be too difficult with an electric engine. In fact
>> considering there are now miniature 3D-printers on the market for the
>> home,
>> an amateur could be the first to produce an entire, scale-size,
>> 3D-printed
>> car.
>
>Electric motor is MUCH more difficult. You must deal with close
>tolerance of TWO very different materials. All of the wires
>consist of a metallic core and a thin insulator sheath.
>
>
>> And then it could be scaled up to produce a full-size, working, fully
>> 3D-printed automobile.
>>
>> This would revolutionize the industry, obviously.
>>
>> The two most difficult parts would be the engine and the transmission.
>>
>> This video shows how you can make your own simple electric motor:
>[]
>> Looking at the steps in the video, it appears they could all be
>> accomplished by 3D-printing.
>
>not the wiring! (at lease not by the 3-d printers available today)
>
>Sorry, but your dream will have to wait.
>
>ed
>
>---
Here's a video of showing the operation of a gas engine:
EXACTLY how a car engine works - 3D animation !
https://www.youtube.com/watch?v=FfTX88Sv4I8
It's complex in its construction and operation. It requires high
temperatures and high pressures. Moreover, the multiple pistons moving at
high speed within the cylinders require tight tolerances.
The DC electric engine I linked in the first post in this thread is
significantly simpler. Actually, the Tesla uses an AC electric motor, just a
little more complicated in its construction, but it has an advantage in not
needing permanent magnets.
Another advantage of the electric cars both using DC and AC motors is that
they don't need a multi-gear transmissions. This is also a significant
simplification.
Here's a video describing the electric motor of the Tesla and its single
speed transmission:
How does an Electric Car work ?
https://www.youtube.com/watch?v=3SAxXUIre28
About the copper wire winding, ideally, you would want the entire car to be
3D-printed, but you could have most of the electric motor be 3D printed and
the copper wire windings placed separately.
For the "binder jetting method" of metal 3D-printing, most similar to the
method amateurs use for plastic 3D-printing, it would be difficult to create
also the wire windings at the same time as the electric motor. The reason is
it requires an additional step of heating at high temperature and the wire
insulation would melt. Perhaps there could be used high temperature ceramic
coating for the wires.
Other methods for 3D-metal printing such as electron beam and laser
deposition do not require this extra step of furnace heating so should be
able to do the copper wire winding, assuming the 3D-printer has the
capability of rapidly switching out the material being deposited between
metal and plastic as needed, or perhaps using separate print heads for each
material.
For instance, if you imagine a horizontal slice through the electric motor.
You would have wire insulation, then the copper wire, then insulation, then
copper wire, and this pattern would be repeated, then you would have the
core, then the insulation, copper pattern repeated again. A 3D-printing
method that could rapidly switch between depositing metal and plastic
insulation material should be able to do this.
Bob Clark
----------------------------------------------------------------------------------------------------------------------------------
Finally, nanotechnology can now fulfill its potential to revolutionize
21st-century technology, from the space elevator, to private, orbital
launchers, to 'flying cars'.
This crowdfunding campaign is to prove it:
Nanotech: from air to space.
https://www.indiegogo.com/projects/nanotech-from-air-to-space/x/13319568/
----------------------------------------------------------------------------------------------------------------------------------
--
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| From | Fred J. McCall <fjmccall@gmail.com> |
|---|---|
| Date | 2017-07-06 13:14 -0700 |
| Message-ID | <sd6tlcpjlanf844228ntcgpc8r6lp9k4q4@4ax.com> |
| In reply to | #60551 |
"Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> wrote:
>On Monday, July 3, 2017 at 8:31:23 AM UTC-4, Robert Clark wrote:
>>> An article from 2015:
>>>
>>> 3-D-printed car could hit streets next year. Chris Woodyard, USA TODAY
>>> 4:48
>>> p.m. EST November 12, 2015
>>> http://www.usatoday.com/story/money/cars/2015/11/10/3d-printed-car-local-motors-swim/75530830/
>>>
>>> Several companies have come out with what they call "3D-printed" cars,
>>> but
>>> none have 3D-printed the most important part, the engine.
>>>
>>> This would be difficult to do with an internal combustion engine, with
>>> its
>>> high temperatures, multiple moving parts, and high tolerances.
>>
>>Difficult, but not impossible. NASA has done 3-d printing of rocket
>>combustion chambers.
>>
Cite? I don't believe that's true.
--
"The reasonable man adapts himself to the world; the unreasonable
man persists in trying to adapt the world to himself. Therefore,
all progress depends on the unreasonable man."
--George Bernard Shaw
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| From | "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> |
|---|---|
| Date | 2017-07-07 15:34 -0400 |
| Message-ID | <ojonhe$6t4$1@dont-email.me> |
| In reply to | #60551 |
... > >Separate print heads assumes an inkjet model. These deposition methods >do not have print heads. they lay down a layer of powder and then melt it >where it needs to form the image. > The Desktop Metal system is more akin to inkjet printing and does not use powders: Desktop Metal Production System. https://www.youtube.com/watch?v=aUOCiRktuCo Bob Clark ---------------------------------------------------------------------------------------------------------------------------------- Finally, nanotechnology can now fulfill its potential to revolutionize 21st-century technology, from the space elevator, to private, orbital launchers, to 'flying cars'. This crowdfunding campaign is to prove it: Nanotech: from air to space. https://www.indiegogo.com/projects/nanotech-from-air-to-space/x/13319568/ ---------------------------------------------------------------------------------------------------------------------------------- --
[toc] | [prev] | [next] | [standalone]
| From | Fred J. McCall <fjmccall@gmail.com> |
|---|---|
| Date | 2017-07-07 14:03 -0700 |
| Message-ID | <jitvlc1brvjkuo4a9d5lip89kb7j9tqsk4@4ax.com> |
| In reply to | #60572 |
"Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> wrote:
>...
>>
>>Separate print heads assumes an inkjet model. These deposition methods
>>do not have print heads. they lay down a layer of powder and then melt it
>>where it needs to form the image.
>>
>
>The Desktop Metal system is more akin to inkjet printing and does not use
>powders:
>
>Desktop Metal Production System.
>https://www.youtube.com/watch?v=aUOCiRktuCo
>
Uh, Bob? The video says it uses powders.
--
"Well, I met a girl in West Hollywood. I ain't naming names.
She really worked me over good. She was just like Jesse James.
She really worked me over good. She was a credit to her gender.
She put me through some changes, Lord.
Sort of like a Waring blender."
-- Warren Zevon, "Poor, Poor, Pitiful Me"
[toc] | [prev] | [next] | [standalone]
| From | "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> |
|---|---|
| Date | 2017-07-07 17:22 -0400 |
| Message-ID | <ojotqt$s4p$1@dont-email.me> |
| In reply to | #60574 |
"Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> wrote: > >>... >>> >>>Separate print heads assumes an inkjet model. These deposition methods >>>do not have print heads. they lay down a layer of powder and then melt it >>>where it needs to form the image. >>> >> >>The Desktop Metal system is more akin to inkjet printing and does not use >>powders: >> >>Desktop Metal Production System. >>https://www.youtube.com/watch?v=aUOCiRktuCo >> > >Uh, Bob? The video says it uses powders. > > Bound into solid rods with a binder similar to the solid rods used for plastic 3D-printing: https://en.wikipedia.org/wiki/Fused_deposition_modeling Bob Clark --
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| From | Fred J. McCall <fjmccall@gmail.com> |
|---|---|
| Date | 2017-07-07 17:01 -0700 |
| Message-ID | <n580mclj3po64m6ndkdf4jb5usvrsl9s2f@4ax.com> |
| In reply to | #60575 |
"Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> wrote:
>"Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> wrote:
>>
>>>...
>>>>
>>>>Separate print heads assumes an inkjet model. These deposition methods
>>>>do not have print heads. they lay down a layer of powder and then melt it
>>>>where it needs to form the image.
>>>>
>>>
>>>The Desktop Metal system is more akin to inkjet printing and does not use
>>>powders:
>>>
>>>Desktop Metal Production System.
>>>https://www.youtube.com/watch?v=aUOCiRktuCo
>>>
>>
>>Uh, Bob? The video says it uses powders.
>>
>
>Bound into solid rods with a binder similar to the solid rods used for
>plastic 3D-printing:
>
>https://en.wikipedia.org/wiki/Fused_deposition_modeling
>
Bob, go watch your original video. Much about powder spreaders.
Nothing about solid rods.
--
"Some people get lost in thought because it's such unfamiliar
territory."
--G. Behn
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| From | "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> |
|---|---|
| Date | 2017-07-09 12:49 -0400 |
| Message-ID | <ojtmjd$taq$1@dont-email.me> |
| In reply to | #60576 |
"Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> wrote: > >>"Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> wrote: >>> >>>>... >>>>> >>>>>Separate print heads assumes an inkjet model. These deposition methods >>>>>do not have print heads. they lay down a layer of powder and then melt >>>>>it >>>>>where it needs to form the image. >>>>> >>>> >>>>The Desktop Metal system is more akin to inkjet printing and does not >>>>use >>>>powders: >>>> >>>>Desktop Metal Production System. >>>>https://www.youtube.com/watch?v=aUOCiRktuCo >>>> >>> >>>Uh, Bob? The video says it uses powders. >>> >> >>Bound into solid rods with a binder similar to the solid rods used for >>plastic 3D-printing: >> >>https://en.wikipedia.org/wiki/Fused_deposition_modeling >> > >Bob, go watch your original video. Much about powder spreaders. >Nothing about solid rods. > > Ok, sorry. There is a difference between the Desktop Metal Studio system and the Desktop Metal Production system. Their studio system is meant to be used in an office setting and both the metal powder and the binder are combined together into solid rods. DM's chief technology officer makes the point this was done for safety reasons to be used for prototyping in an office setting: Metal additive manufacturing--using a desktop 3D printer. https://www.youtube.com/watch?v=ZehOWpZPITk DM's production system however is for rapid, volume production and is meant for an industrial, factory setting and the binder and the metal powder are laid down separately. Bob Clark --
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| From | Sегg io <innvalid@invalid.com> |
|---|---|
| Date | 2017-07-09 23:26 -0500 |
| Message-ID | <ojuvm9$19i4$1@gioia.aioe.org> |
| In reply to | #60585 |
On 7/9/2017 11:49 AM, Robert Clark wrote: > "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> wrote: >> >>> "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> wrote: >>>> >>>>> ... >>>>>> >>>>>> Separate print heads assumes an inkjet model. These deposition >>>>>> methods >>>>>> do not have print heads. they lay down a layer of powder and then >>>>>> melt it >>>>>> where it needs to form the image. >>>>>> >>>>> >>>>> The Desktop Metal system is more akin to inkjet printing and does >>>>> not use >>>>> powders: >>>>> Desktop Metal Production System. >>>>> https://www.youtube.com/watch?v=aUOCiRktuCo >>>>> >>>> >>>> Uh, Bob? The video says it uses powders. >>>> >>> >>> Bound into solid rods with a binder similar to the solid rods used for >>> plastic 3D-printing: >>> >>> https://en.wikipedia.org/wiki/Fused_deposition_modeling >> >> Bob, go watch your original video. Much about powder spreaders. >> Nothing about solid rods. >> >> > > Ok, sorry. There is a difference between the Desktop Metal Studio system > and the Desktop Metal Production system. Their studio system is meant to > be used in an office setting and both the metal powder and the binder > are combined together into solid rods. DM's chief technology officer > makes the point this was done for safety reasons to be used for > prototyping in an office setting: > > Metal additive manufacturing--using a desktop 3D printer. > https://www.youtube.com/watch?v=ZehOWpZPITk > > DM's production system however is for rapid, volume production and is > meant for an industrial, factory setting and the binder and the metal > powder are laid down separately. > > Bob Clark > > video is excellent!
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| From | "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> |
|---|---|
| Date | 2017-07-10 16:10 -0400 |
| Message-ID | <ok0mov$prr$1@dont-email.me> |
| In reply to | #60551 |
On 7/10/2017 9:32 AM, Edward Prochak wrote: >> On Saturday, July 8, 2017 at 9:04:04 PM UTC-4, Lofty Goat wrote: >>> On Fri, 7 Jul 2017 08:00:04 -0700 (PDT), Edward Prochak >>> <edprochak@gmail.com> wrote: >>> >>>> ... electric motors are much more complex than combustion motors.... >>> >>> What measure of complexity are you using? >>> >>> -- >>> Goat >> >> This is in the context of 3-d printing. The mixture of materials >> makes electric motors much more complex than combustion engines. >> combustion engines are all metal. >> electric motors have metal and insulating material. >> That's the measure. >> ed >> > >you have low temp melting materials, adjacent to high temp melting >materials. > >How do you print an insulated length of round wire from a normal direction >to its axis ? assume copper and teflon. > >--- Ceramics have been used as insulators from the early days of electricity: https://en.wikipedia.org/wiki/Ceramic_capacitor#History Many ceramics also have high temperature resistance. The most important reason plastic is used for wire insulation is that wire commonly has to be bent to different directions. However, that wouldn't be required for the wire deposited in place. For deposition of insulated wire at right angles to the wire axis, when deposited in horizontal slices, it would have the appearance of insulation, then wire, insulation, then insulation, then wire, etc. Bob Clark ---------------------------------------------------------------------------------------------------------------------------------- Finally, nanotechnology can now fulfill its potential to revolutionize 21st-century technology, from the space elevator, to private, orbital launchers, to 'flying cars'. This crowdfunding campaign is to prove it: Nanotech: from air to space. https://www.indiegogo.com/projects/nanotech-from-air-to-space/x/13319568/ ---------------------------------------------------------------------------------------------------------------------------------- --
[toc] | [prev] | [next] | [standalone]
| From | "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> |
|---|---|
| Date | 2017-07-10 17:40 -0400 |
| Message-ID | <ok0s0l$aj6$1@dont-email.me> |
| In reply to | #60551 |
On 7/10/2017 9:32 AM, Edward Prochak wrote: >> On Saturday, July 8, 2017 at 9:04:04 PM UTC-4, Lofty Goat wrote: >>> On Fri, 7 Jul 2017 08:00:04 -0700 (PDT), Edward Prochak >>> <edprochak@gmail.com> wrote: >>> >>>> ... electric motors are much more complex than combustion motors.... >>> >>> What measure of complexity are you using? >>> >>> -- >>> Goat >> >> This is in the context of 3-d printing. The mixture of materials >> makes electric motors much more complex than combustion engines. >> combustion engines are all metal. >> electric motors have metal and insulating material. >> That's the measure. >> ed >> > >you have low temp melting materials, adjacent to high temp melting >materials. > >How do you print an insulated length of round wire from a normal direction >to its axis ? assume copper and teflon. > >--- The possibility of 3D-printing insulated wiring could be tested by first testing in plastics. Plastic 3D-printing does have the capability of printing with different materials side by side: How It's Used - Multi-Materials with PolyJet. http://www.stratasys.com/solutions/additive-manufacturing/multi-material-3d-printing The key point that needs to be tested is if there could be 3D-printed multiple coils of a "wire" with one material inside the emulating the copper with a different material on the outside emulating the insulation. Bob Clark ---------------------------------------------------------------------------------------------------------------------------------- Finally, nanotechnology can now fulfill its potential to revolutionize 21st-century technology, from the space elevator, to private, orbital launchers, to 'flying cars'. This crowdfunding campaign is to prove it: Nanotech: from air to space. https://www.indiegogo.com/projects/nanotech-from-air-to-space/x/13319568/ ---------------------------------------------------------------------------------------------------------------------------------- --
[toc] | [prev] | [next] | [standalone]
| From | Sегg io <innvalid@invalid.com> |
|---|---|
| Date | 2017-07-10 17:22 -0500 |
| Message-ID | <ok0uo1$h60$1@gioia.aioe.org> |
| In reply to | #60608 |
On 7/10/2017 4:40 PM, Robert Clark wrote: > On 7/10/2017 9:32 AM, Edward Prochak wrote: >>> On Saturday, July 8, 2017 at 9:04:04 PM UTC-4, Lofty Goat wrote: >>>> On Fri, 7 Jul 2017 08:00:04 -0700 (PDT), Edward Prochak >>>> <edprochak@gmail.com> wrote: >>>> >>>>> ... electric motors are much more complex than combustion motors.... >>>> >>>> What measure of complexity are you using? >>>> >>>> -- >>>> Goat >>> >>> This is in the context of 3-d printing. The mixture of materials >>> makes electric motors much more complex than combustion engines. >>> combustion engines are all metal. >>> electric motors have metal and insulating material. >>> That's the measure. >>> ed >>> >> >> you have low temp melting materials, adjacent to high temp melting >> materials. >> >> How do you print an insulated length of round wire from a normal >> direction to its axis ? assume copper and teflon. >> >> --- > > The possibility of 3D-printing insulated wiring could be tested by first > testing in plastics. Plastic 3D-printing does have the capability of > printing with different materials side by side: > > How It's Used - Multi-Materials with PolyJet. > http://www.stratasys.com/solutions/additive-manufacturing/multi-material-3d-printing > > > The key point that needs to be tested is if there could be 3D-printed > multiple coils of a "wire" with one material inside the emulating the > copper with a different material on the outside emulating the insulation. > > > Bob Clark > a 3D printing rule, you can only print on something with the same or higher melting point. can't print a high melting point material onto a low melting point material. that is a major limitation
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| From | "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> |
|---|---|
| Date | 2017-07-10 19:49 -0400 |
| Message-ID | <ok13j0$1vm$1@dont-email.me> |
| In reply to | #60611 |
On 7/10/2017 4:40 PM, Robert Clark wrote: >> On 7/10/2017 9:32 AM, Edward Prochak wrote: >>>> On Saturday, July 8, 2017 at 9:04:04 PM UTC-4, Lofty Goat wrote: >>>>> On Fri, 7 Jul 2017 08:00:04 -0700 (PDT), Edward Prochak >>>>> <edprochak@gmail.com> wrote: >>>>> >>>>>> ... electric motors are much more complex than combustion motors.... >>>>> >>>>> What measure of complexity are you using? >>>>> >>>>> -- >>>>> Goat >>>> >>>> This is in the context of 3-d printing. The mixture of materials >>>> makes electric motors much more complex than combustion engines. >>>> combustion engines are all metal. >>>> electric motors have metal and insulating material. >>>> That's the measure. >>>> ed >>>> >>> >>> you have low temp melting materials, adjacent to high temp melting >>> materials. >>> >>> How do you print an insulated length of round wire from a normal >>> direction to its axis ? assume copper and teflon. >>> >>> --- >> >> The possibility of 3D-printing insulated wiring could be tested by first >> testing in plastics. Plastic 3D-printing does have the capability of >> printing with different materials side by side: >> >> How It's Used - Multi-Materials with PolyJet. >> http://www.stratasys.com/solutions/additive-manufacturing/multi-material-3d-printing >> The key point that needs to be tested is if there could be 3D-printed >> multiple coils of a "wire" with one material inside the emulating the >> copper with a different material on the outside emulating the insulation. >> >> >> Bob Clark >> > > a 3D printing rule, you can only print on something with the same or > higher melting point. > >can't print a high melting point material onto a low melting point >material. > >that is a major limitation > > >--- Could lay down the metal, then help it cool by blowing cold gas over it, then lay down the insulation, etc. Some types of insulation such as silicone rubber have a melting point of 300 C. Another possibility, is that in order for a material to melt, not only does the temperature have to reach the melting point but a quantity of heat called the "heat of fusion" has to be supplied to it for it to undergo the phase change from solid to liquid. For instance what's done with high performance rocket engines such as the SSME's, which operate above their melting point, is that the heat reaching the combustion chamber walls is constantly drawn away by cold fuel circulating around the walls, so this heat of fusion is not delivered to the walls. Still another possibility is a recent discovery of high temperature nanotube rubber: Nanotube rubber stays stretchy at extreme temperatures. Dec 2, 2010 http://physicsworld.com/cws/article/news/2010/dec/02/nanotube-rubber-stays-stretchy-at-extreme-temperatures Bob Clark ---------------------------------------------------------------------------------------------------------------------------------- Finally, nanotechnology can now fulfill its potential to revolutionize 21st-century technology, from the space elevator, to private, orbital launchers, to 'flying cars'. This crowdfunding campaign is to prove it: Nanotech: from air to space. https://www.indiegogo.com/projects/nanotech-from-air-to-space/x/13319568/ ---------------------------------------------------------------------------------------------------------------------------------- --
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| From | Thomas Koenig <tkoenig@netcologne.de> |
|---|---|
| Date | 2017-07-13 20:17 +0000 |
| Message-ID | <ok8kgn$2lk$1@newsreader4.netcologne.de> |
| In reply to | #60614 |
Robert Clark <rgregoryclark@gmSPAMBLOACKail.com> schrieb: > Some types of insulation such as silicone > rubber have a melting point of 300 C. Do you know what a rubber is? Apparently not.
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| From | jimp@specsol.spam.sux.com |
|---|---|
| Date | 2017-07-13 21:42 +0000 |
| Message-ID | <g36l3e-n1b.ln1@mail.specsol.com> |
| In reply to | #60614 |
In sci.physics Robert Clark <rgregoryclark@gmspambloackail.com> wrote: <snip> > Could lay down the metal, then help it cool by blowing cold gas over it, > then lay down the insulation, etc. Some types of insulation such as silicone > rubber have a melting point of 300 C. Nope, silicone rubber once cured has no melting point. 300 C is the maximum temperature it can withstand before permanetly degrading. Silicone rubbers in general have poor resistance to steam, super heated water, oils, fuels and solvents. Silicone rubbers would be impractical to 3D print due the the chemistry. -- Jim Pennino
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