Electronics Forum: ach (Page 1 of 2)

Manufacturing Floor Ventilation

Electronics Forum | Wed Jan 23 09:36:51 EST 2008 | operator

"A minimal ventilation rate of 0.05 cfm per square foot," This would be per Cubic Feet correct? In our factory that would be about 40,000CFM.(3 ACH) If we wanted 10 ACH we would need apprx. 120,000CFM. We probably have about 2,000-4,000CFM currently.


Electronics Forum | Thu Jan 31 15:33:07 EST 2008 | vikkaraja

Thank you both. Machine is up and running. I never thought that sensor could cause that much head ache. You will think since sensor is not working machine would error out,but not CP3. Thanks again.

Decommissioning or Scrapping PTH/SMT equipment

Electronics Forum | Wed Mar 29 18:57:09 EST 2000 | Dreamsniper

Some manufacturing companies, specially those in the small and medium scale find it hard to decommission/scrap equipment specially if they can still use them even though these equipment are giving them head aches on downtime and quality. I just would

Test capabilities

Electronics Forum | Mon Apr 23 15:28:48 EDT 2007 | ev

To date we are a small niche CM doing prototype and small runs. Any testing we do now is purely functional tests on the pcb ass'ys. In some cases the hardware and software is supplied by the customer, in most cases it's one or the other. We want to e

PCB Warp Issues

Electronics Forum | Tue Jul 20 15:02:49 EDT 2010 | vetteboy86

I've seen this warp issue across several different PCB's we assemble. One of the biggest head ache's is getting the boards to transfer between machines, converyors, and inside our pick and place. Due to the warpage, transport between conveyors is dif

Re: Elimination of Silk Screen

Electronics Forum | Mon Oct 11 13:53:45 EDT 1999 | Dave F

| In a cost-reduction effort, our Design group is attempting to eliminate silk-screen (legend ink) on some new products. By the elimination of this process, there will be a slight decrease in the cost of the bare board. | | Presently, the silk scre


Electronics Forum | Mon Sep 23 13:08:47 EDT 2002 | dragonslayr

Daan has made a valid point with regards to expertise and use of a machine. Yet I recognize that with advanced technology, trades must occur. A hghly sophisticated AOI unit can and will help reduce overall cost of production. Therefore, a need to ha

Fiducial replacements?

Electronics Forum | Tue Dec 18 10:41:48 EST 2007 | shrek

Aviation.Ha-HA-HA-HA. yes indeed who cares?! i got a bit of a belly ache now from laughing at the Fat Bastard's posting on aviation. a subject totally and utterly unrelated to the subject at hand. I agree wholeheartedly with ya, Paul M. me chap. we


Electronics Forum | Thu Oct 02 17:55:16 EDT 2008 | davef

~le sigh~ makes a good point about forcing bent leads into the solder, letting the solder cool, and releasing the force on the lead. On the other hand, reforming leads of components prior to assembly is dangerous, also, because the "bending of a lead

low volume /semi-automatic solutions

Electronics Forum | Wed Jun 18 10:07:02 EDT 2003 | caldon

There are a few directions to go from Here... 1) Outsource it to a CM, 2) Capital investment both have there issues. To Out source I would have processes in place to Inspect quality, resolve issues, Assure quaility, and Hope they can meet your deadli

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