Electronics Forum | Mon Jul 29 09:43:31 EDT 2013 | cyber_wolf
First figure out which centering phase it is using when the part gets rejected. Then run the machine in step mode and watch whats going on.
Electronics Forum | Mon Jul 29 13:34:28 EDT 2013 | dontfeedphils
Usually the reason it will fail a part like that when you are using mechanical centering is because the part is usually picked so off center because of the body shape. So when the centering jaws close to push the part to center they give up and fail
Electronics Forum | Fri Jul 26 11:20:33 EDT 2013 | gnus
Hi all, I'm having issues placing 7 pin DPak packages. I'm using mechanical centering with four centering phases (one for each orientation). Tool used is A24S. Machine picks up the part but will reject it when centering the part. I have measured all
Electronics Forum | Mon Jul 29 13:48:20 EDT 2013 | cyber_wolf
We have placed millions of DPAKS on our Mydatas without issues. Usually the crosshairs need to be just slightly to the right of the dimple when trimming. We do not use high centering force. Please tell us exactly what the error message is.
Electronics Forum | Mon Jul 29 11:17:45 EDT 2013 | kjs123p
Is it failing the optical measurement or a vac measurement? I know that sometimes there is a dimple on the face which can cause rejects due to low vac. I am not sure about the MyData though.
Electronics Forum | Fri Jul 26 12:41:43 EDT 2013 | dontfeedphils
Check the centering force, and change it to High, if it isn't already.
Electronics Forum | Tue Jul 30 11:58:50 EDT 2013 | gnus
Seems to pick up and place fine now. No idea why, didn't change a thing. Thanks for the advice everyone!
Electronics Forum | Wed Sep 04 13:40:46 EDT 2019 | smrsteve
Hello DWL, Thanks for the response. I've measured the components with a micrometer and set the sizes. Maximum tolerance on my machine is 20%, and that's what I'm using. If I do a manual scan, the measurements are exactly right (and what I've set up
Electronics Forum | Wed Sep 04 09:47:41 EDT 2019 | smrsteve
Hello All, I've just bought a Quad 4c pick & place machine. It's so close to actually building boards, but just doesn't quite get there. I was wondering if there's somebody out there with experience of these machines that might be able to help...?
Electronics Forum | Wed Sep 04 13:58:36 EDT 2019 | smrsteve
Hello Bobpan, Thanks for the response. 1. Function 30 gives me a consistent 182-185, even after nozzle changes. I can vary this by changing mod code 15 and I have been advised to aim for 90-110, but it doesn't seem to make any difference so I've go
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