Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:3923048.

This is a replacement bracket for the X limit switch when using the referenced linear rail mod. This allows the use of 40 mm cap screws and eliminates the need for the spacer. I also made a version that should allow the use of the stock screws (40 mm countersink). This is untested by me, however.