Electronics Forum | Thu Sep 22 15:15:15 EDT 2005 | stepheniii
How are the cameras calibrated on those machines?
Electronics Forum | Tue Sep 20 12:38:05 EDT 2005 | Mark
Hallo, I have a problem with Topaz Xi with FNC nozzles. We have front, back and single camera in Topaz Xi. When i am using front camera and placing SO8, TSSOP14, TSSOP16 etc, using nozzles 73F the accurancy is ok. But when i switch to the back cam
Electronics Forum | Sun Sep 25 16:02:59 EDT 2005 | mark
The calibration was ok. When i switch off the back camera and use front one everything is ok. Is it true that when Topaz use back line camera after checking the components the machine rotates the components 180 degree?. Mark \
Electronics Forum | Mon Sep 26 07:56:38 EDT 2005 | pavel_murtishev
Hi! Try to make "R_AXIS_ACCURACY" calibration for all of FNC heads for back camera only. I met such problem on Topaz-X. There was clearly seen offset on 0.8mm pitch components. I simply calibrated all cameras for FNC nozzles and problem disappeared.
Electronics Forum | Tue Sep 27 23:02:55 EDT 2005 | selva Govind
Hi Mark, This problem can be overcome by adjusting the camera brightness - Gain & Offset. I think the offset value is very high. Try reducing it.
Electronics Forum | Wed Sep 28 20:54:04 EDT 2005 | Ken
I would run scale calibration first (for the suspect camera). That may be your only problem. However, if your having a rotation issue and all major angles are off (differently) then it is most likely R-axis accuracy. However, I would run AMF and
Electronics Forum | Fri Jul 06 18:22:51 EDT 2001 | davef
Oooo, you are waving 0402. Tell us more about your wave and its set-up. Never seen this [knock on wood]. When is this skewing occurring, after placement or during cure? What�s the distribution? What happens when you slow-down yer placement rate?
Electronics Forum | Mon Jul 09 20:46:22 EDT 2001 | davef
Is the glue intended for printed SMD attach? 3 Are you following all the manufacturer�s glue shelf life recommendations? 4 Are you observing all the manufacturer�s glue working life guidelines? Finally, what level of skewing are we talking about?
Electronics Forum | Fri Jul 06 09:39:18 EDT 2001 | johnw
Hi guys I am having problems with skewed placement of 0402 devices I would like to add the board has raised pads and we are placing on glue. We are now printing the glue rather that dispensing with a GL5. have any of you guys had this pro
Electronics Forum | Sat Jul 07 04:30:23 EDT 2001 | johnw
Dave this seems to be happining at placement altough when u run cal board the palcement is fine could the glue density be causing this
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