I have to be honest I am getting discouraged - I know chin up - In my previous journey we fixed the air carving issue and replaced aging parts. I carved several sample boards to get the design adjustments right without any problems. I put the good piece in and the carve went all wrong - the spacing was off length wise - I finally recalibrated the x measurement and that is holding however now I get a Y axis stall. There is nothing impeding it - I adjusted the tension to make it a little tighter when that did not help I adjusted to make it a little looser - the Y truck bearings are straight and in the correct alignment. The belt seems to be in good shape. It makes a rougher noise when it starts up but then smooths out - it stops at the same place every time - when it is homing to find the bit. It hits the side next to the computer pad and I here a clunk and it stops. There is nothing over there catching it.

None of the literature gives me any further ideas. Any thoughts?