Geeetech

My I3 pro B has worked fine for at least a couple of years but I now have a problem with the initial Z axis lift. Sometimes the print starts successfully but usually there is an unpleasant screech and the Z motors only turn a little - and not always the same amount. Of course the print then doesn't ...

I have been using my i3B for a couple of years and suddenly the problem you described appeared. Oddly, it sometimes works OK although there is a horrible screech from the motors.

I tracked it down to the very first couple of Z movement commands (speeds of 5000 up for 5mm and 7800 down to 0.3mm). If ...

I'm trying to find out why my i3 printer has started to misbehave following a problem where Repetier host froze leaving the nozzle hot and embedded in a print. At the start of a new print the Z motors screech and don't necessarily move to the same height. The code always starts:

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11 M201 X9000 ...