MsPacMan
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From: Joerg on 16 Jul 2010 15:23 John Larkin wrote: > This is cool, a nanograbber for clipping onto fine-pitch parts. > > ftp://jjlarkin.lmi.net/MsPacMan.JPG > > As you squeeze it to open the little wire clamp things, it looks just > like the PacMan thing gobbling up dots. Flip the image over, and it > looks like some fancy Israeli assault rifle. These cost $14 each, by > the dozen. > > But to be serious for a second: We seed our boards with "test points", > really just unmasked vias with 42 mill drills, a nice size to jam a > scope probe tip into. What I really need is a thing that I can solder > to the end of a wire, like a scope ground clip or a test lead, that > will plug into such a hole and stay put and make contact. It would be > a little metal tube with a bustle of curved, springy wires, 2 or more, > poking out the end... > > springy wires jam into via > tube > =========== /------\ > wire ----- \ > ===================== > -----\ / > =========== ------- > > > Google's no help. Does anybody know if someone makes these things? > Like this? http://www.keyelco.com/products/specs/spec73.asp A bit large and you'd have to solder your wire to the lug. Not sure how long the springiness will last after xx insertions and removals. Maybe they've got smaller ones. -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: langwadt on 16 Jul 2010 15:23 On 16 Jul., 19:29, John Larkin <jjlar...(a)highNOTlandTHIStechnologyPART.com> wrote: > This is cool, a nanograbber for clipping onto fine-pitch parts. > > ftp://jjlarkin.lmi.net/MsPacMan.JPG > > As you squeeze it to open the little wire clamp things, it looks just > like the PacMan thing gobbling up dots. Flip the image over, and it > looks like some fancy Israeli assault rifle. These cost $14 each, by > the dozen. > > But to be serious for a second: We seed our boards with "test points", > really just unmasked vias with 42 mill drills, a nice size to jam a > scope probe tip into. What I really need is a thing that I can solder > to the end of a wire, like a scope ground clip or a test lead, that > will plug into such a hole and stay put and make contact. It would be > a little metal tube with a bustle of curved, springy wires, 2 or more, > poking out the end... > > springy wires jam into via > tube > =========== /------\ > wire ----- \ > ===================== > -----\ / > =========== ------- > > Google's no help. Does anybody know if someone makes these things? > > John get some of the pressfit dil sockets like on page 142 in this: http://www.precidip.com/data/files/pdf/products/dil-sil-to-sockets_en.pdf push the pins out of the plastic form to get single ones -Lasse
From: John Larkin on 16 Jul 2010 16:30 On Fri, 16 Jul 2010 12:23:11 -0700, Joerg <invalid(a)invalid.invalid> wrote: >John Larkin wrote: >> This is cool, a nanograbber for clipping onto fine-pitch parts. >> >> ftp://jjlarkin.lmi.net/MsPacMan.JPG >> >> As you squeeze it to open the little wire clamp things, it looks just >> like the PacMan thing gobbling up dots. Flip the image over, and it >> looks like some fancy Israeli assault rifle. These cost $14 each, by >> the dozen. >> >> But to be serious for a second: We seed our boards with "test points", >> really just unmasked vias with 42 mill drills, a nice size to jam a >> scope probe tip into. What I really need is a thing that I can solder >> to the end of a wire, like a scope ground clip or a test lead, that >> will plug into such a hole and stay put and make contact. It would be >> a little metal tube with a bustle of curved, springy wires, 2 or more, >> poking out the end... >> >> springy wires jam into via >> tube >> =========== /------\ >> wire ----- \ >> ===================== >> -----\ / >> =========== ------- >> >> >> Google's no help. Does anybody know if someone makes these things? >> > >Like this? > >http://www.keyelco.com/products/specs/spec73.asp > >A bit large and you'd have to solder your wire to the lug. Not sure how >long the springiness will last after xx insertions and removals. Maybe >they've got smaller ones. That looks pretty good; I'll try some. Soldering a wire on there is fine. We bought something like 50 scope ground leads for the lab, so I could sacrifice a few. Thanks. John
From: Joerg on 16 Jul 2010 18:06 John Larkin wrote: > On Fri, 16 Jul 2010 12:23:11 -0700, Joerg <invalid(a)invalid.invalid> > wrote: > >> John Larkin wrote: >>> This is cool, a nanograbber for clipping onto fine-pitch parts. >>> >>> ftp://jjlarkin.lmi.net/MsPacMan.JPG >>> >>> As you squeeze it to open the little wire clamp things, it looks just >>> like the PacMan thing gobbling up dots. Flip the image over, and it >>> looks like some fancy Israeli assault rifle. These cost $14 each, by >>> the dozen. >>> >>> But to be serious for a second: We seed our boards with "test points", >>> really just unmasked vias with 42 mill drills, a nice size to jam a >>> scope probe tip into. What I really need is a thing that I can solder >>> to the end of a wire, like a scope ground clip or a test lead, that >>> will plug into such a hole and stay put and make contact. It would be >>> a little metal tube with a bustle of curved, springy wires, 2 or more, >>> poking out the end... >>> >>> springy wires jam into via >>> tube >>> =========== /------\ >>> wire ----- \ >>> ===================== >>> -----\ / >>> =========== ------- >>> >>> >>> Google's no help. Does anybody know if someone makes these things? >>> >> Like this? >> >> http://www.keyelco.com/products/specs/spec73.asp >> >> A bit large and you'd have to solder your wire to the lug. Not sure how >> long the springiness will last after xx insertions and removals. Maybe >> they've got smaller ones. > > That looks pretty good; I'll try some. Soldering a wire on there is > fine. We bought something like 50 scope ground leads for the lab, so I > could sacrifice a few. Thanks. > I believe Newark carries them. -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: Frank Buss on 17 Jul 2010 00:02
Joerg wrote: > I believe Newark carries them. Digikey has it, too. Search for "keystone test points" and you'll get a nice selection for diameter, color etc. Looks like it is popular, because some types are available in container quantities :-) http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=5002K-ND -- Frank Buss, fb(a)frank-buss.de http://www.frank-buss.de, http://www.it4-systems.de |