Thing-O-Matic: Rod End Cap Tweakage

The Y axis rods seem to be a bit too long for the overall case size; they stuck out the better part of 2 mm.

Y axis rod protrusion
Y axis rod protrusion

I applied a 3/8-inch Forstner bit to the inside of the rod end caps to make a slightly-too-deep recess, then shimmed the hole with some cardboard to make the answer come out right.

Recessed Y-axis rod caps
Recessed Y-axis rod caps

The Z axis rods were just barely too long, but I did the same thing to those caps.

The X axis rods were fine!