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Looping With A Twist

granpagus
My boss unilaterally designed this fixture … for 13 pc sample. Parts are aprox 4.3X4.3 inch.
My plan – start by selecting 1 or 6 parts. Read point on first part. Start loop with offsets and 180° rotation. At end of loop X and Y offsets are updated in a case statement using a counter initialized before the loop and incremented at end of loop.
Then a rough DCC align with BIG prehit/retract (did I mention there is a lot of slop in this fixture?). Followed by 2 full DCC alignments to lock everything up.
Now probe, dimension and report. Report consists of PDF automatically saved (with option to print), CSV file and DataPage+ (if I ever get it set up).
Finally the case statement, update counter and loop/end.
I like it – the demon don’t.
Seems to be an offset problem. Run offline, rotation seems fine but X/Y translation is not as expected. Online is the same?
Am going to play with it more and can post code later. Does anyone see obvious error in my logic?
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  • If your gonna run that many parts. I would highly suggest putting a print command at the end, so you can delete instances. I was informed PC-DMIS has a small buffer. To much and your program will most likely crash during or at the end of the program.

    Yes Sir you are correct!

    Program starts with a script to create folders and sub folders (Accept, Reject, CSV folder, etc...). 2 print commands inside the loop one if part is good (Accept folder) other if part is bad (Reject folder).

    The most Ive managed to run in a single loop is 36pcs and I'm yet to encounter any issues. Thanks, for the heads up I'll be on the look for any errors/crashes. I did come across issues with TruPos dimensions but found a solution.
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  • If your gonna run that many parts. I would highly suggest putting a print command at the end, so you can delete instances. I was informed PC-DMIS has a small buffer. To much and your program will most likely crash during or at the end of the program.

    Yes Sir you are correct!

    Program starts with a script to create folders and sub folders (Accept, Reject, CSV folder, etc...). 2 print commands inside the loop one if part is good (Accept folder) other if part is bad (Reject folder).

    The most Ive managed to run in a single loop is 36pcs and I'm yet to encounter any issues. Thanks, for the heads up I'll be on the look for any errors/crashes. I did come across issues with TruPos dimensions but found a solution.
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