Electronics Forum | Fri Apr 21 12:43:51 EDT 2000 | David
We are going to hand place through hole connectors by screening them top side in a double sided reflow board. I saw this done before sucessfully on a daily basis but is there anyone with a paper or specs as to what aperture size, any special pad cons
Electronics Forum | Fri Nov 21 12:12:44 EST 2014 | joe98375
On average there are about 3 parts per board that get hand placed (x24 is 72 parts per panel). One of these parts is a big 1W resistor that cannot fit on our axial machine. We also have a Zener Diode that needs to be hand placed because its leads are
Electronics Forum | Thu Sep 12 20:17:59 EDT 2013 | action_101
Good ole contact cs-400. I worked at two different companies that had these machines, all I believe were E's except 1 C. One place had one and the other place had 4 of them. Dont take this personally, but thank god my current employer doesn't have a
Electronics Forum | Fri Nov 21 10:28:23 EST 2014 | gregp
Hi Adam, So with two to three people on the slide line, each only able to place five different components maximum, this means you generally don't exceed 10-15 through hole parts per assembly, correct? I am guessing these are mixed technology boards
Electronics Forum | Wed Nov 19 19:06:42 EST 2014 | spoiltforchoice
Plenty of people don't like cut 'n clinch and might appreciate just having the cut part. We do a mix of OEM and CEM work, because of the low volumes special tooling for a product is often out of the question so that is one thing to consider. We use t
Electronics Forum | Tue Sep 10 10:38:12 EDT 2013 | rway
Most of the PTH components are manually inserted. Some are auto-placed by our UIC machine. The parts are preped before install, so there is no need to trim the leads afterwards. The boards go through wave solder. The UIC machine has a clincher on
Electronics Forum | Wed Sep 11 15:12:02 EDT 2013 | rway
"Do you think these machines are less appropriate for smaller lot sizes and PCB's with just a few through hole parts?" That depends. It will still save time if your lot sizes are small, as opposed to hand placement. I would not recommend buying an
Electronics Forum | Fri Nov 21 11:00:27 EST 2014 | gregp
Hi J_Dub (Joe), Thanks for the input. Sounds like some fairly densely populated through hole assemblies. 100 solder joints per board is up to 50 parts per board (I know you may have DIP's so it could be less than 50). 24 boards in a panel x 50 par
Electronics Forum | Thu Nov 20 16:51:48 EST 2014 | joe98375
gregp: Our PTH process has not changed in many years. Our products are fairly simple as far as electronics goes and everything gets potted anyways. ~90% of everything we build is single sided TH with ~ 100 solder joints per board. Each board is ~
Electronics Forum | Mon Nov 17 13:43:39 EST 2014 | gregp
So we all know through hole assembly hasn't been completely eradicated. I am doing some research as to the types of through hole assembly that still remain. My questions are related to through hole requirements and past, current and future methodol
