Groups > sci.electronics.design > #503049

Re: impossible stud

Newsgroups	sci.electronics.design
Date	2018-04-20 16:54 -0700
References	(4 earlier) <0i1kddpphocmglg2bckfd3s2cu11n2ljlo@4ax.com> <pbd1ii019g@news7.newsguy.com> <jg5kdddookkqqkamj6enuq2idvkfcn6lrk@4ax.com> <32a8e371-f961-4765-9f83-e0f775ba2cbb@googlegroups.com> <tiukddlaj8gqjqe7rknkgo6jf4v6s40i0q@4ax.com>
Message-ID	<cc253728-e84b-42e2-8ccc-c03f49bbe39f@googlegroups.com> (permalink)
Subject	Re: impossible stud
From	George Herold <gherold@teachspin.com>

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On Friday, April 20, 2018 at 7:44:14 PM UTC-4, John Larkin wrote:
> On Fri, 20 Apr 2018 12:39:18 -0700 (PDT), whit3rd <whit3rd@gmail.com>
> wrote:
> 
> >On Friday, April 20, 2018 at 9:41:21 AM UTC-7, John Larkin wrote:
> >
> >> I guess I could just smash the boards together with six nuts and
> >> bolts. That's inelegant but easy. 
> >
> >Anything with small loose parts is an assembly irritation, and
> >a did-it-get-loose maintenance issue.
> >
> >If you go instead with some plastic snap-in standoffs, the baby board can
> >have six pogo pins for its electrical connection, or if plating is
> >pricey, just put landing spots on the (small) baby board and pogo pins
> >in motherboard.
> 
> The snap-ins would take too much room. We considered pins on the baby
> board and pin sockets on the main board, also a hassle.
> 
> Currents and speeds are high for pogos.
> 
> If I make the holes in the baby board a tad smaller than the screw
> size, the screws will thread into the plated holes a bit and become
> essentially captive. That makes assembly a little less messy.
> 
I'm mostly confused about what you want to do.  Is the 
thermal conductivity of the connections important?  If there's 
not enough room for some header.  Then some mechanical mount for 
stability, and hand solder in bus wire through plated holes. (?)

(with a loop on top so it doesn't fall through, how many are you making?)


George H.   
> 
> 
> 
> -- 
> 
> John Larkin         Highland Technology, Inc
> picosecond timing   precision measurement 
> 
> jlarkin att highlandtechnology dott com
> http://www.highlandtechnology.com

Thread

impossible stud John Larkin <jjlarkin@highlandtechnology.com> - 2018-04-19 20:51 -0700
  Re: impossible stud Perry <Perry@null.com> - 2018-04-20 12:41 +0800
    Re: impossible stud Perry <Perry@null.com> - 2018-04-20 12:47 +0800
    Re: impossible stud TTman <kraken.sankey@gmail.com> - 2018-04-20 11:13 +0100
    Re: impossible stud George Herold <gherold@teachspin.com> - 2018-04-20 06:10 -0700
      Re: impossible stud gnuarm.deletethisbit@gmail.com - 2018-04-20 22:29 -0700
  Re: impossible stud "Tim Williams" <tiwill@seventransistorlabs.com> - 2018-04-20 02:07 -0500
    Re: impossible stud John Larkin <jjlarkin@highlandtechnology.com> - 2018-04-20 07:14 -0700
  Re: impossible stud Martin Brown <'''newspam'''@nezumi.demon.co.uk> - 2018-04-20 08:41 +0100
    Re: impossible stud John Larkin <jjlarkin@highlandtechnology.com> - 2018-04-20 07:22 -0700
      Re: impossible stud tabbypurr@gmail.com - 2018-04-20 07:38 -0700
        Re: impossible stud John Larkin <jjlarkin@highlandtechnology.com> - 2018-04-20 08:29 -0700
          Re: impossible stud "Carl Ijames" <carl.ijames@NOverizon.net> - 2018-04-20 11:50 -0400
            Re: impossible stud John Larkin <jjlarkin@highlandtechnology.com> - 2018-04-20 09:41 -0700
              Re: impossible stud "Carl Ijames" <carl.ijames@NOverizon.net> - 2018-04-20 14:05 -0400
              Re: impossible stud whit3rd <whit3rd@gmail.com> - 2018-04-20 12:39 -0700
                Re: impossible stud John Larkin <jjlarkin@highland_snip_technology.com> - 2018-04-20 16:44 -0700
                Re: impossible stud George Herold <gherold@teachspin.com> - 2018-04-20 16:54 -0700
                Re: impossible stud John Larkin <jjlarkin@highland_snip_technology.com> - 2018-04-20 17:41 -0700
                Re: impossible stud George Herold <gherold@teachspin.com> - 2018-04-20 18:55 -0700
            Re: impossible stud Jeff Liebermann <jeffl@cruzio.com> - 2018-04-20 10:26 -0700
              Re: impossible stud John Larkin <jjlarkin@highland_snip_technology.com> - 2018-04-20 12:16 -0700
                Re: impossible stud Jeff Liebermann <jeffl@cruzio.com> - 2018-04-20 17:52 -0700
                Re: impossible stud piglet <erichpwagner@hotmail.com> - 2018-04-21 10:45 +0100
                Re: impossible stud John Larkin <jjlarkin@highlandtechnology.com> - 2018-04-21 07:53 -0700
                Re: impossible stud Joseph Gwinn <joegwinn@comcast.net> - 2018-04-21 15:00 -0400
                Re: impossible stud John Larkin <jjlarkin@highlandtechnology.com> - 2018-04-21 15:23 -0700
                Re: impossible stud Joseph Gwinn <joegwinn@comcast.net> - 2018-04-22 12:39 -0400
                Re: impossible stud John Larkin <jjlarkin@highlandtechnology.com> - 2018-04-22 10:19 -0700
                Re: impossible stud Joseph Gwinn <joegwinn@comcast.net> - 2018-04-24 10:07 -0400
                Re: impossible stud John Larkin <jjlarkin@highlandtechnology.com> - 2018-04-24 07:58 -0700
                Re: impossible stud Joseph Gwinn <joegwinn@comcast.net> - 2018-04-24 22:38 -0400
                Re: impossible stud John Larkin <jjlarkin@highland_snip_technology.com> - 2018-04-25 10:31 -0700
                Re: impossible stud gnuarm.deletethisbit@gmail.com - 2018-04-25 14:44 -0700
                Re: impossible stud Joe Chisolm <jchisolm6@earthlink.net> - 2018-04-21 14:44 -0500
                Re: impossible stud whit3rd <whit3rd@gmail.com> - 2018-04-21 14:11 -0700
                Re: impossible stud tabbypurr@gmail.com - 2018-04-21 03:18 -0700
                Re: impossible stud tabbypurr@gmail.com - 2018-04-21 03:34 -0700
          Re: impossible stud Joseph Gwinn <joegwinn@comcast.net> - 2018-04-20 12:41 -0400
          Re: impossible stud "Tim Williams" <tiwill@seventransistorlabs.com> - 2018-04-20 20:35 -0500
          Re: impossible stud bill.sloman@ieee.org - 2018-04-20 19:00 -0700
  Re: impossible stud Jasen Betts <jasen@xnet.co.nz> - 2018-04-20 08:12 +0000
    Re: impossible stud Mike Perkins <spam@spam.com> - 2018-04-20 10:26 +0100
      Re: impossible stud "dcaster@krl.org" <dcaster@krl.org> - 2018-04-20 07:09 -0700
    Re: impossible stud John Larkin <jjlarkin@highlandtechnology.com> - 2018-04-20 07:23 -0700
  Re: impossible stud Jeff Liebermann <jeffl@cruzio.com> - 2018-04-20 10:13 -0700
  Re: impossible stud Lasse Langwadt Christensen <langwadt@fonz.dk> - 2018-04-20 14:17 -0700
  Re: impossible stud Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2018-04-20 15:08 -0700
    Re: impossible stud John Larkin <jjlarkin@highland_snip_technology.com> - 2018-04-20 16:48 -0700
      Re: impossible stud Joe Chisolm <jchisolm6@earthlink.net> - 2018-04-20 23:17 -0500
  Re: impossible stud "Tim Williams" <tiwill@seventransistorlabs.com> - 2018-04-20 20:20 -0500
  Re: impossible stud mickgeyver <alan.yeager.2013@gmail.com> - 2018-04-20 18:41 -0700
  Re: impossible stud Robert Baer <robertbaer@localnet.com> - 2018-04-21 00:53 -0700
  Re: impossible stud Lasse Langwadt Christensen <langwadt@fonz.dk> - 2018-04-21 13:06 -0700
    Re: impossible stud John Larkin <jjlarkin@highlandtechnology.com> - 2018-04-21 15:29 -0700
      Re: impossible stud Lasse Langwadt Christensen <langwadt@fonz.dk> - 2018-04-21 15:46 -0700
  Re: impossible stud Spehro Pefhany <speffSNIP@interlogDOTyou.knowwhat> - 2018-04-24 09:10 -0400
    Re: impossible stud John Larkin <jjlarkin@highlandtechnology.com> - 2018-04-24 06:55 -0700
      Re: impossible stud Joe Chisolm <jchisolm6@earthlink.net> - 2018-04-24 11:00 -0500

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