Electronics Forum | Thu Jan 09 17:28:07 EST 2020 | dwl
2-3 weeks? wow! I've had stencils last over a decade and only needed replacing because the adhesive holding the mesh dry rotted and crumbled. Of course build volumes were in the order of 50-100 per year. Just goes to show there is no easy answer f
Electronics Forum | Thu Jan 09 18:26:21 EST 2020 | spoiltforchoice
Much like DWL we have multiple stencils that are really quite old (~2003 and still in use) and are perfectly OK. In fact I don't think we've ever worn one out, higher volume designs are far more likely to get a layout change before the stencil gets
Electronics Forum | Fri Jan 10 13:21:34 EST 2020 | emeto
Yes, think of 3prints/minute 24 hours. This is about 4000 prints a day. than you have a marginal process, because customer locked design and doesn't want to change anything. So in our case for 70k-100k prints and we had to change them as the perform
Electronics Forum | Thu Jan 09 08:40:37 EST 2020 | raeesrajput
Hi Every one, Thanks in advance for your help and support. I am getting errors 'Nozzle pick up error' and 'Nozzle release error' on Mirae Mx350. I have been told to calibrate Nozzle Holes using 'ANC' option in the Menu. Ther
Electronics Forum | Fri Jan 10 03:40:41 EST 2020 | jakapratama
Hi, Some nano coat supplier said that you can drop water to the surface where the coating supposed to present before to check. If it's beading, it's still there. I take it that you meant by self in-house wiping of coating, yes? Stencil supplier nan
Electronics Forum | Fri Jan 10 14:41:02 EST 2020 | slthomas
I'm wondering if anyone has ever done a before/after test on the wipe-on type to see if it's any better. The factory applied stuff has been a game changer for us and as already stated, has the added benefit of a dye to indicate that it's still ther
Electronics Forum | Fri Jan 10 14:49:20 EST 2020 | emeto
Steve I did investigate the transparent nano coat before for performance. We examined 3 different assemblies based in design criteria. In more simplistic designs it is not worth having it. On more challenging designs it is worth. It proved to have be
Electronics Forum | Mon Jan 13 14:44:19 EST 2020 | dwl
I wouldn't think the vibration from weights dropping would be significant enough to effect the SMT machines. If you are concerned, look into placing vibration dampening pads under the machine feet. you don't need anything fancy, just neoprene pads wo
Electronics Forum | Wed Jan 15 12:10:22 EST 2020 | emeto
Avillaro, I don't have hands on experience with Vapor Phase equipment, but my guess is that it will work better for thick boards like yours. Trying another chemistry is a logical move. May be it is worth trying the fixture for connector flatness as n
Electronics Forum | Thu Jan 16 05:10:46 EST 2020 | soupy
Hej, we have some connectors placed on our PCB. 2*30legs 0.5 After reflow we detect lifted legs in the AOI. Always on the outer corners. Is this something ye have experienced? And any possible solutions? Stuff we have tried: Checking the cop
