- October 25, 2016 at 7:29 pm #20091
So ive been working on my MP3DP and i got a new arduino mega 2567 and uploaded the firmware to it.
i plugged in the device into the shield and connected the stepper motors, drivers, and the thermistor to make sure it worked. i double checked my wiring and everything is wired correctly from what i can see.
i started repeiter-host and the X, Y, and Z all move in one direction but not in the opposite direction.
any ideas or suggestions to fix the problem?
thanks.October 25, 2016 at 7:36 pm #20092
Wire your endstops the other way. The board thinks they are triggered. If you wired them NO, change them to NC.October 25, 2016 at 7:56 pm #20093
for some reason i turned the stepper motor connections around bc when i went -Y direction the plate would go +Y direction and so did the other axises.
after i did that and connected the end stops it moved fine.
but now i have a new problem:
the bed plate goes back and forth but when it reaches Y=0 on the indicator, it will not move past it to the negative spectrum.
any explanation on that?
should the printer be coordinate (0, 0, 0) at a corner or in the center of the bed?October 25, 2016 at 8:48 pm #20094
The mp3dp shoukd not travel in the negative direction. Lower left corner is 0,0.October 26, 2016 at 8:38 am #20117
So I’m still having trouble with the motors only turning one direction and not the other.October 26, 2016 at 12:38 pm #20130
check you endstops if they’re being triggered properly. Disable your steppers in LCD, manually move your axes where it will hit the endstops and send M119 on repeiter-host. See if x,y,z were TRIGGERED when you hit them manually. If they are getting triggered, were you able to Autohome?
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