22MM bearing to 2040 extrusion holder

thingiverse

Assembling my final project was a revelation - the center hole was woefully short by 1 MM, causing the sled to drag on the threaded rod like an unwieldy beast. So I took action and checked the alignment, only to discover a glaring 1 mm misalignment that cried out for correction. Adjusting the large bearing proved to be the solution, as did elevating the center hole 1 MM up the Z axis to compensate. I'm currently building a 2D laser engraver (https://www.thingiverse.com/thing:3625614), and I've found this clever mechanism to stabilize the threaded rod opposite my Nema motor to be nothing short of brilliant. This handy setup holds a 22mm 608-2RS bearing snugly in place, and pairing it with its perfect complement (https://www.thingiverse.com/thing:3625609) ensures that the heights are spot on. To get the bearing into position, I recommend using a hammer to tap it gently into place. Note: I obtained my T-slot extrusion from Thingiverse somewhere along the line, but unfortunately, I forgot to bookmark the creator's page - kudos to them for their ingenuity!