Electronics Forum | Tue Aug 19 08:02:26 EDT 2008 | ck_the_flip
Larry, It is generally bad practice to place high profile parts, like TANTalum Capacitors on the bottom side. They are more likely to shadow, and also, the odd termination that covers only a very small part of the body makes it prone to solder skip
Electronics Forum | Fri Nov 21 15:34:16 EST 2008 | George
Does anyone know of an inexpensive way of holding small parts or boards in place in a wash basket to prevent them from moving during cleaning process.Keep in mind you want the top of the parts/boards to also get clean. Thanks
Electronics Forum | Fri Apr 21 09:03:59 EDT 2006 | choppy
I guess the first thing to look at is the temperature. We had to heat more for QFP256 on sample boards and we saw discoloration on some small parts. Just try to sense around when profiling to see what's there.
Electronics Forum | Mon Sep 21 03:52:17 EDT 2009 | darrenj
Found the problem. A small part had previously fallen off the nozzle, and ended up behind the left centering jaw preventing the jaw from opening up fully. Cheers Darren
Electronics Forum | Fri Feb 16 08:28:54 EST 2018 | emeto
Here is a small part of my collection. If you need anything more specific, please let me know.
Electronics Forum | Mon Dec 25 17:28:43 EST 2023 | bobpan
I dont know if vision on spin fail was ever for small parts....its more for bigger fine pitch that fail in the quadalign and then given another chance to pass over the upward camera.
Electronics Forum | Wed Apr 26 10:21:09 EDT 2006 | slaine
Hi you need to dip long enough for the temperature of the part being soldered to reach about 20 degrees above liquidus of the solder. For the small parts we dip solder we had Sn62 and SAC387 baths set to 250 degrees and this seems to work best for us
Electronics Forum | Mon Feb 11 04:05:35 EST 2013 | ngineer
How are you determining the inaccuracy? Are you unable to pick the part at all? If the parts will pick, you can quad-align them. If they won't pick at all, you'll need to refurb. If you're using small parts like 0402, they do make a special feede
Electronics Forum | Mon Dec 23 13:44:46 EST 2002 | Paul Black
Does anyone have a tried-and-true method to account for machine losses of SMT parts? I remember reading an article once that stated that 5% - 10% of components of certain sizes are known to be lost during placement, and I know some CM's overplan by 5
Electronics Forum | Mon Sep 18 10:40:15 EDT 2006 | SWAG
Depending on what kinds of machines you run and feeder style, self adhering leaders work well to minimize the need for a long leader. We use them on every reel. We can generally load most feeders with only waste of about 4 parts by use of leaders (
