Did the X axis mod on my Printrbox Simple and homing the X axis

Did the X axis mod on my Printrbox Simple and homing the X axis the belt slips. Anyone has any ideas?

Witch version of the side rails did you print? V2 I think was optimized for the newest version of the simple. You may want to make sure you are using the V1 side rails

@Steven_Hauser This is the one I printed: http://www.thingiverse.com/thing:231490

@Andre_Courchesne1 , I just checked and that’s the same part I printed and I haven’t had any issues with it slipping off of the bearing. I’ve probably got nearly 50 hours of print time on it.

Sorry I thought you had used /thing:257841 which has 2 different versions. I agree with previous posters you will either need to shim the left bearing to bring it forward a little, or possibly mover the toothed gear forward to stay in parallel with the end bed belt holders