Electronics Forum | Mon Sep 26 14:05:04 EDT 2011 | scottp
I agree that class III is overkill for most applications and the customer needs to pay for it if that's what they want. It's also true that class III doesn't assure things won't fail. Life expectancy is mostly due to component and material selectio
Electronics Forum | Thu Sep 29 09:16:17 EDT 2011 | mpolak
Hello, I have recently obtained a trial version of Mentor Graphics' BOM Explorer. Has anyone had any experience using it? We are currently editing our BOMs manually for P&P machines programming. After quick look and trying few options it doesn't see
Electronics Forum | Tue Nov 08 21:56:23 EST 2011 | tpappano
Hi Jeff, both units have DC servos, and both appear to have the same vision system, although #2 has an additional upward-looking camera with a high magnification lens for die mounting. If I could make use of your hex files, that would be great sinc
Electronics Forum | Tue Nov 15 15:37:05 EST 2011 | comatose
I have a new (to me) Vitronics XPM3 oven which we're hooking up. It requires 480V, and I only have real 208V in the facility. I have a transformered up 480 subsystem, but its corner grounded rather than center grounded. The XPM3 manual suggests tha
Electronics Forum | Sat Feb 04 09:36:51 EST 2012 | davef
You bet. Using a high temperature solder is a perfectly reasonable way the attach thermocouples. Just remember that the solder will not flow on the thermocouple. You need to use a solder iron to lay the solder over thermocouple to hold it in place.
Electronics Forum | Mon Feb 27 09:31:30 EST 2012 | pauld
Hi Dave, Picture a camera mounted on top of a fixed base that pans 360 deg. back and forth. The motor connects through a circular slip ring board with brush connection. The rings are hard gold and the typical brush material is soft. Unlike the armatu
Electronics Forum | Thu Jun 14 04:24:32 EDT 2012 | brettrenishaw
Yes pads are still gold after the wave soldering process even if you wave solder a pcb several times. I have tried soldering using an iron and the solder takes to the pad as you would expect. This happens on all boards of this type and all boards are
Electronics Forum | Fri Jun 29 12:47:25 EDT 2012 | deanm
We are experiencing widely varying First Pass Yields for selective soldering. Some boards are near 100% while others are less than 50% depending on the pitch and general complexity of the board. Question: If you are running 100 boards through your s
Electronics Forum | Tue Sep 25 11:50:37 EDT 2012 | davef
Ken ... I resized your picture so that it fits on the page better. Continuing with your outgassing through the solder pads theory, how thick is the copper on the pads? I don't expect to see outgassing through pad that are a thou or more in thickness
Electronics Forum | Wed Oct 03 19:28:58 EDT 2012 | rgduval
Given that you're seeing it on nearly every part, we tend to lean towards Dave's explanation. We wouldn't expect outgassing from the pad to be an issue (at least, we've never heard of it before, which doesn't, necessarily, eliminate it as a potentia
