FABRICATION:
1.) Use a 0.374" reamer and ream out the hole using the drill press.

NOTE: This hole must be UNDER SIZED. The large bearing will be press fitted into the upright.
DO NOT clamp the part to the drill press and set the drill press on the slowest speed.

2.) Use a 0.249" reamer and ream on the drill press.

NOTE: Please check the reamer size. The 0.249" and 0.251" look the same.
This hole must be UNDER SIZED. The small shaft will be pressed fitted into the upright.
DO NOT clamp the part to the drill press and set the drill press on the slowest speed.

3.) Use the table top hand taper and tap with #8-32 threads, in both places.