Spool Holder for 3/4 inch dowel

This is a spool holder I designed to go over a 3/4 inch dowel in a dry box. It should fit just about any 1 kilogram spool. The bearings are press fitted into the ends and use bb's for a bb gun. I printed all of the bearing parts at the lowest layer height my printer can manage, and the body and nut of the spool holder were printed at .2 mm layer height. The only portion that I used supports was for the main body, and I used touching build platform only. The threads did not need any clean up