Electronics Forum | Tue Apr 24 12:56:39 EDT 2001 | Steve
We are experiencing a fair amount of skewed components, mostly 0805 resistors and capacitors, during the reflow process. We have pretty much ruled out the pick-n-place and have determined that it may be happening because of variables at the paste scr
Electronics Forum | Tue Mar 09 14:29:40 EST 1999 | Jason Hall
When a board has loaded into the machine and the fiducials do not line up I have tried to use mark edit to set an offset into the program. I lined up the crosshairs and set the data. For some reason the machine did not accept this info. Does anyone h
Electronics Forum | Wed Oct 31 11:10:28 EST 2001 | Claude_Couture
In theory, no tweaking is necessary. Unless you happen to work with equipment old enough to vote! We have several lines with old MK chip shooters. of course, we use the same program for all the lines. There is no way to calibrate each machine so that
Electronics Forum | Thu Apr 25 21:58:54 EDT 2002 | Gang shen
thank all of your kind help.today I set the camera gain and offset same as the camera2,the gain is 180,and the offset is 105. First the vision process is failed to pass ,later I found the size of the BGA ball in the screen is so smaller than the rea
Electronics Forum | Wed Apr 07 11:36:41 EDT 2004 | stefwitt
Your machine will have to have a reference position. From this reference position, you determine all other machine positions. If the camera is attached to the head, you could place a glass slug and measure camera-nozzle offset, by placing the slug w
Electronics Forum | Tue Jul 27 19:37:51 EDT 2004 | simmcircuits
Thank you Paul, this is the actual information I need to adjust the camera! At the moment I have actually reduced the offset values down to 0.7 from a previous 4.0. I have done this by editing the AP.CAL, took a while to get the proper values as I ha
Electronics Forum | Wed Feb 09 10:40:56 EST 2005 | primus
Another question about Set Command Variables. We use fixed dimension, multiple window PCBs in all of our UIC machines. It is often required that we use the rotary table to populate the entire panel, but this means that for each rotation, either the w
Electronics Forum | Thu Feb 24 23:01:30 EST 2005 | smtuser1234
One other thing to check is your PEC camera. Universal uses a jig to calibrate this camera but you could check it using this method. 1.Run about ten 0402 parts on tape with the PEC camera off and check placement. If the placement is off change the x\
Electronics Forum | Tue Oct 25 09:20:10 EDT 2005 | meritajs
Hi, We have problem with y-axis offset at YM84 After setting the ORIGIN machine operate exactly but after sometime y-axis recieves offset bis 5-10mm.After repeated setting ORIGIN Y-coordinat became exact. The same things take place if we operate in W
Electronics Forum | Tue Oct 25 22:54:55 EDT 2005 | KEN
sorry. re-read your post. The problem is the home sensor relative to the home pulse. You're catching the wrong home pulse. a 10mm offset sounds about right for a 360 degree error. You need 50% +/- 15 % to ensure you always zero to the same phys
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