Hi Guys,
I've been lurking the forum for a long time and just recently finished final assembly on a semi-customized MendelMax 2. Right now i'm in the process of calibrating everything and I'm concerned I left calibrating the stepper currents until last...
If the printer has been on for a little while (10 min?) the Y axis will lose steps in the - direction on non-print moves. The very first calibration cube print didn't see this problem, but revisiting the same g-code after spending time doing bed leveling and making sure everything is square results in a print where the first few layers are square, then they start drifting off in the Y direction. The Y stepper is very hot to the touch, hot enough I can't keep my fingers on it. If I try to dial back the current at the stepper driver, it stops moving in the Y- direction (though Y+ will still work).
I've tried varying the tension on the belt which may have been over tight to begin with. I've tried playing with the current as noted above. I haven't done much on changing up the acceleration/max speed, though i'd like to be able to keep that as high as possible.
Since this only seems to be a problem in one direction, i'm worried that I blew the stepper. Thoughts? Debug steps? Is it possible to re-built steppers?
Thanks!
I've been lurking the forum for a long time and just recently finished final assembly on a semi-customized MendelMax 2. Right now i'm in the process of calibrating everything and I'm concerned I left calibrating the stepper currents until last...
If the printer has been on for a little while (10 min?) the Y axis will lose steps in the - direction on non-print moves. The very first calibration cube print didn't see this problem, but revisiting the same g-code after spending time doing bed leveling and making sure everything is square results in a print where the first few layers are square, then they start drifting off in the Y direction. The Y stepper is very hot to the touch, hot enough I can't keep my fingers on it. If I try to dial back the current at the stepper driver, it stops moving in the Y- direction (though Y+ will still work).
I've tried varying the tension on the belt which may have been over tight to begin with. I've tried playing with the current as noted above. I haven't done much on changing up the acceleration/max speed, though i'd like to be able to keep that as high as possible.
Since this only seems to be a problem in one direction, i'm worried that I blew the stepper. Thoughts? Debug steps? Is it possible to re-built steppers?
Thanks!