<img src="/uploads/default/original/2X/f/fead0e36275df082e084d5134f60bce298d2ba0f.jpg" width=“640” height="427"
I have had my Shapeoko XL for about two months and all has been well. I was running a job this afternoon when it became apparent the Z Axis Plate became frozen in place. When I disassembled the mechanism I discovered one of the two set screws on the idler pulley had vibrated loose (see picture) and jammed the gear from turning, making a loud clicking sound (not a belt skipping sound). It appears that the set screw had little or no LocTite on the thread.
- Can someone please explain the function of those set screws. If you tighten them down, they lock the pulley against the mounting bolt also preventing it from turning.
- Now even more curious, the belt will not bypass itself because the bushings appear to be pinching the belt too tightly together. I don’t have a clue why this is since it is threaded exactly as the instructions indicate and it was working well before this incident…
- Also, the loose set screw scored the vertical track on the left side. I was able to smooth it out somewhat with steel wool, but hopefully the factory can send me a replacement.
Your thoughts and suggestions on issues 1 & 2 would be greatly appreciated.