Yet another spool holder

Designing a spool holder for your 3D printer is probably a right of passage. This is my 3rd, and by far the one I'm happiest with.Materials:4x 608 skateboard bearings8x 3/8" nuts2x 3/8" threaded rod roughly 6.125" (155mm) in length eachInstructions:Print two of the rollersPrint two of the sidesPress fit some 608 skateboard bearings into the circular holes in the sidesPress fit a 3/8" nut into each end of the rollersThread the threaded rod through the nuts in the rollers until there is an equal l