Redrilled and retapped holes for the stepper motor mount and reinstalled all the components. Used plastic to tape off the linear rails during the rework to prevent having to completely disassemble everything, while still keeping chips and dust out of the linear rail carriages. Learned that you can use a long Allen wrench to press deep-set T-slot nuts into the proper orientation (and position) while attempting to screw into them, helping avoid them getting stripped by accident. Also learned that you can use your finger in the round end of a wrench to get the right depth when trying to screw a nut onto the end of a bolt.