I’ve been looking through all the previous forums that outline issues with X or Y axis stepper motors.
After completing a series of 24+ hour builds - I started one today that during the first couple of layers had issues with what I thought was belt slippage https://dl.dropboxusercontent.com/u/92045468/20160407_124609.jpg. I re-tensioned the X axis belt to closely match the Y axis tension. Since all issues appear to be in the X axis.
After tensioning the belt - the issue persisted, so I disassembled the extruder from the mount, and removed the bearings to ensure there was no build up of dirt/debris on the them. Wiped down the rails and bearings and re-assembled.
Still nothing. I feel as though I’ve got the belts tight enough, I may go back through and attempt to tighten further as when I mark the belt to examine slippage after moving X direction +300 -300 +300 there is about a 1/2" misalignment.
Using pronterface I recorded a few videos showing the movement, and inconsistent speed of the stepper during movement.
A newly discovered issue is that when the steppers are energized - I’m able to move the X axis fairly easily…
Any help would be greatly appreciated, I’m running out of ideas…