23 Jan
2012
23 Jan
'12
3:03 a.m.
On Sun, 22 Jan 2012, Chuck Guzis wrote:
On 22 Jan 2012 at 19:29, Tony Duell wrote:
Oh well... A good reason for me not to order one, then.
Many hobbyists seem to be deathly afraid of soldering SMT,
particularly fine-pitch (0.5 mm) QFPs. It's not that bad, even with
a regular soldering iron, but a microscope or other aid to visually
inspect the result helps a lot.
At some point, someone offered adapter cards with, for the want of a
better term, employed a "trench" for each lead, so that
misregistration was almost impossible. I don't know if they're still
made or even how difficult it would be to fabricate such a thing on a
circuit board--but it might bear investigation for future kits.
As someone else mentioned, those are made by Schmartboard. I asked on a
homebrewed PCB mailing list how or if trenches like that could be made on
a homebrewed or professionally-made board. The answers ranged from
"maybe" to "yes, but very expensive" to "no".
--
David Griffith
dgriffi at cs.csubak.edu
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
Do builders need to solder the surface-mount
components, or are
they already soldered when the kit is delivered?
Surface-mounts are already done.