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mdcpickandplace:troubleshoot [2009/11/04 21:00] ladyada |
mdcpickandplace:troubleshoot [2016/01/28 18:05] |
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- | ===== Bad USB cable ===== | ||
- | When we first started up the software, it didnt display the huge red "ON LINE" button and said it couldn't find the "KPS card" due to a bad USB extension cable. Don't forget also to have the pick and place on before the computer so that it auto-starts correctly | ||
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- | ===== Misaligned homing dots ===== | ||
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- | We also had a problem where the machine would not 'HOME' properly. If the homing dots aren't where thinks they should be the machine freaks out and quits. Turns out that our homing-dot brackets were not tightened before shipment (hey it happens!) | ||
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- | {{:mdcpickandplace:homingright.jpg|}} | ||
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- | As a result, when moving the machine, the bracket moved. We shifted the bracket back so the homing dot was where the machine looked for it and it started homing again. *whew* | ||
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- | ===== Misaligned nozzles ===== | ||
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- | In the nozzle programming/teaching menu, we had a new problem, which was that the nozzles were not centered | ||
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- | {{:mdcpickandplace:nozzlepos.jpg|}} | ||
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- | It turns out this was because when we re-set the homing dots (above) they were off slightly and the machine had a bad skew calculation. The homing dots are actually there to align the two Y motors (since they can be out of sync). As a result we needed to reset the homing dots using {{:mdcpickandplace:mdc_luna_mark_adjustment.pdf|special instructions}} by gently aligning the Y motors, then retraining it on the new dots. Once we did this the nozzles came back into alignment. |