Y-stepper-spacer_Mold

Update: Two part silicone released with considerable work. Silicone adhesive stuck, but I didn't apply water or mold release, so could be why, or may need draft angle added to vertical walls.

Quick and dirty tracing of Toolson's Y-spacer. Added fillet to inside diameter, in-case I ever
have to try to thread belt again.

Had extra silicone around after making bed dampers and hotend sock, and wanted to replace all possible with the magical silicone. I assumed the spacer would be fair game with my Shore 60A silicone.

Depending on compression, it may need changes to work right.
WIP.