Electronics Forum | Fri Oct 12 15:52:41 EDT 2007 | etienne
Hope that your PCB is supported evenly, I mean really plane to the conveyer rail. If not this may warp the PCB upwards, causing fiducials to be identified not accurately. Also I suggest you to check Mark Info of the fiducials and have a look at the t
Electronics Forum | Tue Mar 30 12:18:22 EDT 2021 | chicagoindustrial
Sorry for such a generic response, but you should consider SPI if you are not happy with the results of your printer. That is probably measured by defects at the AOI. SPI machines are quite expensive. I don't see the point of them when you can just b
Electronics Forum | Thu Apr 01 17:35:16 EDT 2021 | cyber_wolf
Building on what Evtimov said, folks who are not familiar with SPI get freaked out when they first deploy it. You need to have an understanding of whats going on and how to adjust when you get "failures" I would advise that anyone who is g
Electronics Forum | Thu Oct 11 16:26:40 EDT 2007 | jseagle
Have you created block offsets for each board in the panel? We have rotated baords in panels but have not had to use block fiducials, we just use board fids. We place 0402s and 16mil fine pitch on multiple boards in a panel with boards rotated 180
Electronics Forum | Thu Oct 11 16:55:26 EDT 2007 | slthomas
Yeah, James, we've got block repeats set up so we're getting the boards built with just pcb fids, and very accurately. I want to be able to build with block fids, though, in case we have any issues with the panelization. It's happened in the past a
Electronics Forum | Thu Oct 11 17:54:21 EDT 2007 | slthomas
Yep, we did it just the way you described, I think. What we did NOT do was a block conversion. We just built it a board at a time, to see if things were accurate when we first programmed it. They weren't, so we did away with the block fids, adjusted
Electronics Forum | Fri Oct 12 13:10:27 EDT 2007 | jseagle
We always do block conversion and have never had a problem. Is there a problem with the accuracy of your PCBs from the vendor? If you can get a panel placed correctly the next panels should also place correctly. I just created a 2x8 panel with hal
Electronics Forum | Thu Oct 11 12:37:27 EDT 2007 | slthomas
We purchased a used machine and can't get the block fiducial function to work properly (PCB fids work fine). I can teach them and the machine will use them but the correction is worthless. We first tried it on a 2x2 panel where the top two boards wer
Electronics Forum | Thu Oct 11 17:32:59 EDT 2007 | wayne123
In Block repeat information did you put the rotation in before optomizing? This is where the machine gets the rotation of these individual boards. The Block fiducials are good to use, but they aren't for defining rotation. If you optomized using note
Electronics Forum | Tue Sep 11 19:54:52 EDT 2001 | gsparka
HELLO. SMTNETERS there is no company in high mix low volume system in our contry so . what is the best way to calculate the capa. of smt line in high mix low volume. & what is the general way to get the defect rate to evaluate the smt line(or sm
