I recently built a prusa i3, running sprinter through a ramps/arduino set up and using a pronterface/slicer interface. All of the axes are callibrated correctly and move accurately, manually that is, through pronterface.
The problem begins when I start a print, x and y axis are fine however the z axis, although moves between each layer, does not move enough, which results in a print that is squished by about 50% in the z direction. I feel that the motors are not getting enough power to overcome the limitting friction between the threaded rod and bolt, ive got the trimpot on the stepper at max, heatsink is quite hot, got a fan on it and the z motors do get warm.
Ive been trying to print out this star thing but as you can see its not looking good.
Any advise on this would be great, thanks.
Adeel
Edited 2 time(s). Last edit at 03/11/2014 01:21PM by AdeelUK.