Electronics Forum: designing (Page 419 of 537)

Quad 4C part placement rejection

Electronics Forum | Fri Nov 18 16:26:17 EST 2011 | olddog

Hi again Bob, I checked the theta motor coupling and the set screws are definately tight. I noticed that the theta motor drives an snti-backlash gear (nice design) so there is no play there. It appears that the gear drives a slotted shaft which is d

Panasonic CM Users

Electronics Forum | Sat Feb 11 09:58:20 EST 2012 | cbeneat

I have a question for any Panasonic CM 402/602 users. We run Cree XPE/XPG/XPC LED's on our machines, and have struggled for years with the lights sticking in our nozzles. We have two types, I believe both designed by Cree, one picks the light up by

ANN: PCB Synergy 1.0.0.9 Beta and new Website

Electronics Forum | Mon Feb 27 06:18:32 EST 2012 | sarason

I am just releasing Version 1.0.0.9 Beta Release Added feeder swapping. minor fix in Mydata TP Sys 2.7 Added more Juki 2000 and 700 series and Yamaha YP/YG machines, more Panasonic machines. Updated Options tab, User interface cleansing Added Check

Adding new line

Electronics Forum | Wed Feb 27 08:31:02 EST 2013 | anton99

We are a OEM and growing pretty fast. The like the idea of setting up common components on the machine. It makes sense from a set up perspective. All of our set up is off line but the set up usually lasts longer than the SMT run so we have some spora

QFN aligment issues

Electronics Forum | Fri Jun 29 10:56:56 EDT 2012 | jorge_quijano

Hi guys, I need your advise on this, I have a very uncommon PCB design (at least for me, I've never seen anything like this...) it is 32" x 18" x 0.062" and has 9 QFNs that are driving me crazy, I'm not able to get a good alignment, I can get a mediu

ICT testing to improve yields

Electronics Forum | Mon Aug 27 09:23:22 EDT 2012 | rway

Which military? The US? Being a military contractor, I am surprised at your lack of quality at your facility. I suspect this is non-US military. I don't know where you are located, but being a contract mfg for the military, any military, I can im

parts left on a reel

Electronics Forum | Tue Sep 18 10:52:14 EDT 2012 | sarason

Sounds like a plan. The usual way is to count how many you use on the job either by pre-calculation. Or how many clicks the machine counts and save the data before switch off, then drop it back into a spread sheet. This depends very much on the mach

SMT voiding

Electronics Forum | Thu Oct 25 13:35:47 EDT 2012 | davef

Here's a paper that may help http://www.ipcoutlook.org/pdf/assembly_challenges_bottom_terminated_ipc.pdf Temperature Impact * Profile didn’t have a significant impact on voiding. * Voids slightly increased with higher temperature. Reflow Atmosp

SMT - PCB combo process

Electronics Forum | Fri Oct 12 11:18:57 EDT 2012 | srgbarba

Hi, I want to ask if someone saw the combo process at smt lines for panel array (bot & top per both sides), I just perform some experiments and it works perfectly, and I validate the T hus (Cg/Pa) and no one component were dropped after the 2nd reflo

Rework Station for SMD PCBs

Electronics Forum | Tue Nov 20 19:56:12 EST 2012 | hegemon

In order to be able to do full prototype assembly, you will need to be able to mount and reflow a large number of different devices of differing technology. One part might be a simple QFP, another might be a .4mm pitch uBGA. If you are prototyping a


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