Electronics Forum | Fri Apr 02 09:50:40 EST 2004 | cedams
Yup. It was definitely checking the fiducials as well as the block skip marks and it used to work pretty well. What it did was started at the center of where the fiducial should be and scanned left. When it found a change in contrast it scanned righ
Electronics Forum | Wed Oct 19 07:30:25 EDT 2005 | davef
Try: * Electronics Manufacturing Productivity Facility (EMPF) 317.226.5640 Ray Cirimele 317.231.2045fax226.5673 * National Training Center for Microelectronics Northampton Community College 3855 Green Pond Rd Bethlehem, PA 18017-7599 610.861.4553f
Electronics Forum | Tue Jan 03 03:01:35 EST 2006 | Frank
The 740 and 760 basically have the same specs as far as component ranges: 0402-50mm components. The 760 is a bit more accurate and the vision system is better. The 740 was designed when BGA weren't really around and so it can barely vision center b
Electronics Forum | Wed Sep 27 17:49:41 EDT 2006 | SWAG
Open the rear door that has the cooling fans on it. Look at the wiper blade regulator, look toward the front of the machine about 8" or so and to then left 3"or 4". There should be a lexan cover/box over the board that has this pot. on it. If stil
Electronics Forum | Fri May 04 19:23:28 EDT 2007 | darby
System > Machine Config > Mechanical OP > Head 3 Spec = Vision. Data In > System > Machine Config > Mechanical OP > M Centering 1 = Yes If your Centering unit is a two stage unit then also set M Centering 2 = Yes You should then be able to roughly
Electronics Forum | Thu Aug 28 08:43:56 EDT 2008 | rgduval
You wouldn't think that placement would affect dewetting or solderability....I wouldn't have either, until it was the only thing left in our process, and when we changed it, things got better. I couldn't begin to explain why, either. The only concl
Electronics Forum | Wed May 27 16:39:33 EDT 2009 | rmitchell
Hi, I think vision 20 will work as well. If not we have used 100 or 105. Have you tried placing the part with the machine trace on? If so is it finding all the leads? any error codes? If you are defining the leads in the EL lead data I would not d
Electronics Forum | Tue Apr 27 16:00:19 EDT 2010 | scottp
In a nutshell, Cp is a measure of your process variation compared to your spec limits and Cpk is measure of both variation and how well your process is centered within your spec limits. Cp = (USL-LSL)/6*sigma where USL=upper spec limit LSL=lo
Electronics Forum | Wed May 25 22:32:28 EDT 2016 | stevedc
So, I haven't used my Quad 4C for a while and when I started everything back up to run a new board it appears that the Quad align is in need of calibration. When I pick up a component and do an LAE measurement on it it shows the part center location
Electronics Forum | Thu Aug 04 15:07:30 EDT 2016 | sumote
I have seen a similar error on a Quad 4C machine. When setting up the parameters on a tray part there are several points of data you have to input. You have to teach where the center of the 1st part (and you have to know which corner your machine con
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