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Thanks kmxsoft, To be honest I have had that board plugged and unplugged so many times that could have been the problem. It's only the original (i suspect v cheap) ones that have failed, the new ones with heat sinks seem fine, and it was the extruder one which went twice (should have put one of the ...

Hi, I seem to have given the impression that I keep plugging and unplugging my stepper motors. I don't though :D The motor drivers seem to be fine now, the originals didn't have heat sinks and the replacements seem better. thanks for the advice though! The new reliability of the stepper motors has a...

Hey. thanks everyne for getting back to me. sorry, I don"t check back more often! Yeah the stepper drivers seem to be a weak point, I ordered half a dozen from china, and a couple from the uk as quicker. I have gone through about three, but the latest incumbents seem stable. It looks like you c...

Aaaah, I think it is the a4998 motor driver. If you swap it into another socket, the problem migrates with it. I have ordered half a dozen spares. Mine don't even have heat sinks so despite the cheapness of the replacement parts I am calling it an upgrade

Help!! I have just assembled a ctc prusa i3 copy, thanks to some excellent youtube vids since the instructions are garbage. However the extruder motor is not working and despite hours and hours of research I cannot make it work. The motor works fine if you plug it into the x axis cable, but not on i...