Bambu filament winder / spooler remixed

thingiverse

This is a remix of Miklos Kiszely's amazing spool winder. I copied the geometry but created a new frame and carriage. I wanted to work on a few things. 1 - I thought the idler gear could use a bearing on both sides instead of just one. 2 - I wanted to print it in parts instead of one monolithic frame. 3 - I wanted the bearings to be trapped - mine kept popping out. 4 - I wanted the worm gear to have 3 bearings to keep it from popping off of the spur gear. 5 - I wanted the sled to be trapped in place - mine had to be held down well winding. 6 - I wanted to increase the size of the hex part of the main shaft for strength. 7 - I wanted the base plate to have a couple of tabs to make it easy to clamp to a table edge. the screw holes are all designed for ruthex threaded inserts. M4 everywhere but the carriage, which is M3. The shafts should be printed vertically out of something suitably strong. The flat pieces are all large, so you need to use something that won't lift. PLA might work, but I used PA-CF and PC-CF because I had some around. The bearing holes are sized so that they might be a tad big. They are tight with some materials and loose with others. If there's interest I can redo the frame pieces with slightly smaller bearing holes. If they are a smidge too large you can also just shim with pieces of paper to make them tight. UPDATE - I have added four files that have 22.2mm bearing holes instead of the original 22.4mm. This should be tighter for those of you that need it. Most of the inserts are ruthex M4x8.1. Most of the M4 screws are M4 x 20. 15 or maybe even 10mm would also work. The two screws that connect the main and secondary bearing block are a little longer; M4 x 25 or 30mm would work. The smaller inserts in the sled are ruthex M3x5.7. Those screws need to be pretty short. I think they were M3x8mm or so. Inserts are here: https://www.amazon.com/gp/product/B08K1BVGN9/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 Because the carriage is now trapped, the order of putting it together changes. Build the carriage first, then bolt it down. The, put on the main bearing block, get all the gears in place, insert the shafts, and then put the secondary bearing block on. That seems to be the easiest way.