Clamp for Xcarriage with LML8UU and no inserts

I liked the idea of going with nuts rather than brass insertds because the inserts deformed the carriage too much.

I did have problems with the clamp, though. It was too thick for the length of M3 screws I had for the X-carriage.

I remixed the part to recess the screw heads, which solved that problem.

The other thing that bothered me was that it was VERY awkward to hold both the belts in place, hold the nuts in place, and drive the screw in. The answer to that was to split the clamp and