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Groups > sci.physics > #638597 > unrolled thread
| Started by | "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> |
|---|---|
| First post | 2017-07-03 08:31 -0400 |
| Last post | 2017-07-10 12:39 -0400 |
| Articles | 11 on this page of 151 — 19 participants |
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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. Edward Prochak <edprochak@gmail.com> - 2017-07-03 06:31 -0700
Re: Towards the *fully* 3D-printed electric cars. Sегg io <innvalid@invalid.com> - 2017-07-03 08:37 -0500
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. Edward Prochak <edprochak@gmail.com> - 2017-07-07 08:00 -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. Edward Prochak <edprochak@gmail.com> - 2017-07-07 15:19 -0700
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. Lofty Goat <rlwatkins@gmail.com> - 2017-07-08 20:04 -0500
Re: Towards the *fully* 3D-printed electric cars. Edward Prochak <edprochak@gmail.com> - 2017-07-10 07:32 -0700
Re: Towards the *fully* 3D-printed electric cars. Sегg io <innvalid@invalid.com> - 2017-07-10 12:21 -0500
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-10 17:35 +0000
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. 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. 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. Sегg io <innvalid@invalid.com> - 2017-07-06 13:09 -0500
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. Edward Prochak <edprochak@gmail.com> - 2017-07-05 10:52 -0700
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-05 18:07 +0000
Re: Towards the *fully* 3D-printed electric cars. Sегg io <innvalid@invalid.com> - 2017-07-05 14:21 -0500
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-05 19:34 +0000
Re: Towards the *fully* 3D-printed electric cars. Edward Prochak <edprochak@gmail.com> - 2017-07-05 15:32 -0700
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-05 23:00 +0000
Re: Towards the *fully* 3D-printed electric cars. Edward Prochak <edprochak@gmail.com> - 2017-07-06 10:12 -0700
Re: Towards the *fully* 3D-printed electric cars. Sегg io <innvalid@invalid.com> - 2017-07-06 13:15 -0500
Re: Towards the *fully* 3D-printed electric cars. Edward Prochak <edprochak@gmail.com> - 2017-07-07 06:20 -0700
Re: Towards the *fully* 3D-printed electric cars. Sегg io <innvalid@invalid.com> - 2017-07-07 09:39 -0500
Re: Towards the *fully* 3D-printed electric cars. Edward Prochak <edprochak@gmail.com> - 2017-07-07 08:11 -0700
Re: Towards the *fully* 3D-printed electric cars. Sегg io <innvalid@invalid.com> - 2017-07-07 14:13 -0500
Re: Towards the *fully* 3D-printed electric cars. jimp@specsol.spam.sux.com - 2017-07-06 20:04 +0000
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. 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. 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. Mahipal <mahipal7638@gmail.com> - 2017-07-05 05:43 -0700
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
Page 8 of 8 — ← Prev page 1 2 3 4 5 6 7 [8]
| From | "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> |
|---|---|
| Date | 2017-07-06 05:01 -0400 |
| Message-ID | <ojku1b$1o7$1@dont-email.me> |
| In reply to | #638715 |
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. >> >> 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. >> 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. >* Transmission not needed; look at the Tesla. > >> >> This video shows how you can make your own simple electric motor: >> >> How to Make an Electric Motor at Home - YouTube. >> http://www.youtube.com/watch?v=0p2QTE26VOA >> >> Looking at the steps in the video, it appears they could all be >> accomplished by 3D-printing. > >* GACK! A DC motor with commutator! How gross. > The working part of the engine should be exactly like the armature >in the Tesla car: design is same as armature in an AC shaded pole fan >motor. > That design would not be too difficult for a 3Dprinter. > >--- Do you have any references for how the Tesla car electric motor looks/works? 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 | Sегg io <innvalid@invalid.com> |
|---|---|
| Date | 2017-07-06 13:38 -0500 |
| Message-ID | <ojm03k$1cub$1@gioia.aioe.org> |
| In reply to | #639089 |
On 7/6/2017 4:01 AM, Robert Clark wrote: > 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/ >>> >>> >>> >> * GACK! A DC motor with commutator! How gross. >> The working part of the engine should be exactly like the armature >> in the Tesla car: design is same as armature in an AC shaded pole fan >> motor. >> That design would not be too difficult for a 3Dprinter. >> >> --- > > > Do you have any references for how the Tesla car electric motor > looks/works? > > Bob Clark > https://www.youtube.com/watch?v=4bg5mjPANck https://www.youtube.com/watch?v=zMQjcukphpA
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| From | "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> |
|---|---|
| Date | 2017-07-06 05:10 -0400 |
| Message-ID | <ojkuj1$3kh$1@dont-email.me> |
| In reply to | #638597 |
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. > >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. >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: > >How to Make an Electric Motor at Home - YouTube. >http://www.youtube.com/watch?v=0p2QTE26VOA > >Looking at the steps in the video, it appears they could all be >accomplished by 3D-printing. > > > Bob Clark > Here's a description of the commercial, metal 3D-printers now in use: Learn how 3d printing metal works – Top 3 ways! 02, 10 , 2016. https://pinshape.com/blog/3d-printing-metal/ The first method described as "metal binder jetting" might be the easiest one for amateurs to adapt to make a home metal 3D-printer. This method is also the fastest as described here: Desktop Metal reveals how its 3D printers rapidly churn out metal objects. Posted Apr 25, 2017 by Lora Kolodny (@lorakolodny) https://techcrunch.com/2017/04/25/desktop-metal-reveals-how-its-3d-printers-rapidly-churn-out-metal-objects/ The metal "binder jetting method" for 3D metal printing is analogous to how amateurs make plastic 3D parts so it should be something amateurs could copy: Desktop Metal Production System. https://www.youtube.com/watch?v=aUOCiRktuCo The only complication is that it is a 3 step process: the part is 3D printed, then put in a solvent bath to dissolve the binder, then finally put in a high temperature oven to sinter the metal together. However, the method itself probably is not patented since another company Metal X is using the same process: Solid Metal 3D Printing Under $100k - Markforged Metal X | CES 2017. https://www.youtube.com/watch?v=IeZkOuQUeaQ Many amateurs working independently could come up with improvements to the process. For instance, is it possible to combine the metal deposition, dissolving the binder, and sintering all into a single step? 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 | "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> |
|---|---|
| Date | 2017-07-10 17:16 -0400 |
| Message-ID | <ok0qj6$6fb$1@dont-email.me> |
| In reply to | #639090 |
> >Desktop Metal reveals how its 3D printers rapidly churn out metal objects. >Posted Apr 25, 2017 by Lora Kolodny (@lorakolodny) >https://techcrunch.com/2017/04/25/desktop-metal-reveals-how-its-3d-printers-rapidly-churn-out-metal-objects/ > >The metal "binder jetting method" for 3D metal printing is analogous to how >amateurs make plastic 3D parts so it should be something amateurs could >copy: > >Desktop Metal Production System. >https://www.youtube.com/watch?v=aUOCiRktuCo > >The only complication is that it is a 3 step process: the part is 3D >printed, then put in a solvent bath to dissolve the binder, then finally >put in a high temperature oven to sinter the metal together. > >... Desktop Metal says their method for metal 3D-printing is superior to the the laser sintering for volume production of metal parts because of the laser methods slow rate of deposition. DM claims 100 times faster production rates than the laser method. But since this high production rate comes from using many more print heads, it seems to me you could get the faster deposition rate with the laser method by using, say, 100 copies of the lasers. Laser 3D metal printing commonly uses a 200W laser. So to scale this up 100 times would require 20,000W. The cheapest cost I've seen for lasers were by manufacturers in China in the $15 per watt range. So 20,000W would cost in the range of $300,000. Most likely the lasers would be the primary cost for the machines, so call it ca. $600,000 for the full machine able to duplicate the Desktop Metal production rate. One laser 3D metal printing company also suggests use of wirefeed rather than a powder bed can increase the production rate and also reduces the cost of the material: VIDEO: Is Wirefeed the Future of Selective Laser Sintering? James Anderton posted on December 19, 2016 | http://www.engineering.com/AdvancedManufacturing/ArticleID/13955/VIDEO-Is-Wirefeed-the-Future-of-Selective-Laser-Sintering.aspx Near the end of this video they also suggest scaling the laser up to the 15,000W range could bring the production rate to the level of other commonly used metal production methods. 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 | "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> |
|---|---|
| Date | 2017-07-06 05:13 -0400 |
| Message-ID | <ojkupk$46m$1@dont-email.me> |
| In reply to | #638597 |
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. > >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. >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: > >How to Make an Electric Motor at Home - YouTube. >http://www.youtube.com/watch?v=0p2QTE26VOA > >Looking at the steps in the video, it appears they could all be >accomplished by 3D-printing. > > The Desktop Metal Studio system is not meant for home use. But they do mean for it to be used by engineers in an office setting to do rapid prototyping. Their Desktop Metal Production system due out next year is intended for high volume production. They claim a production rate of 8,200 cm3 per hour, which they say rivals standard manufacturing techniques. As described in their videos, this is for production of multiple copies of a part by a machine with about a cubic foot operating volume: Desktop Metal Production System. https://www.youtube.com/watch?v=aUOCiRktuCo However, it would seem the machine could be adapted to make a single part of this size. That is, instead of making a hundred copies of a part a couple of inches wide by using multiple jets performing identical deposition passes, have these jets be separately, and independently directed to make different portions of one part that is a foot wide. 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, 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. 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 | "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> |
|---|---|
| Date | 2017-07-06 08:35 -0400 |
| Message-ID | <ojlait$ba7$1@dont-email.me> |
| In reply to | #639092 |
> >Say, you wanted to make a steel engine within a machine operating volume 3 >feet wide on a side. This would require 33 = 27 of the current machines (or >a single one scaled up this size.) Say, the engine weighed 270 kilos, >that's 270,000 grams. Say the weight is equally distributed among the 27 >machines, The second sentence here should say: "This would require 3^3 = 27 of the current machines (or a single one scaled up this size.)" Bob Clark ---------------------------------------------------------------------------------------------------------------------------------- Finally, nanotechnology can now fulfill its potential to revolutionize 21st-century technology, from the space elevator, to private, orbital launchers, to 'flying cars'. This crowdfunding campaign is to prove it: Nanotech: from air to space. https://www.indiegogo.com/projects/nanotech-from-air-to-space/x/13319568/ ---------------------------------------------------------------------------------------------------------------------------------- --
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| From | "Robert Clark" <rgregoryclark@gmSPAMBLOACKail.com> |
|---|---|
| Date | 2017-07-07 10:31 -0400 |
| Message-ID | <ojo5p6$a3d$1@dont-email.me> |
| In reply to | #639092 |
> ... > >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/ ---------------------------------------------------------------------------------------------------------------------------------- --
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| From | Greg Goss <gossg@gossg.org> |
|---|---|
| Date | 2017-07-09 22:15 -0600 |
| Message-ID | <esgdc3F2n10U2@mid.individual.net> |
| In reply to | #639293 |
"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.
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| 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 | #639694 |
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 | #639715 |
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.
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| From | krw@notreal.com |
|---|---|
| Date | 2017-07-10 12:39 -0400 |
| Message-ID | <2db7mc111j4li9lro2nepjqefp5nkrqas9@4ax.com> |
| In reply to | #639694 |
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.)
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