3d printable Sieg x2 mini mill belt drive conversion

thingiverse

This is a belt drive conversion that can be almost entirely 3D printed. My mill broke, so I wanted to create a printable belt drive as a temporary fix. It has been working flawlessly for several months without any issues. This conversion doesn't have a spindle lock yet, but I've been using an ER20 collet and haven't needed the spindle lock. There is also no guard yet installed. The Fusion 360 files are included below: Hardware requirements: 2 x 2" long 1/4"-20 bolts 2 x 1/4"-20 nuts (a wing nut can be used for the adjustable side) 2 x 1/4" washers 4 x 10mm long 6mm socket head cap screws 1.5x70 70-tooth timing belt (available at LittleMachineShop.com: https://littlemachineshop.com/products/product_view.php?ProductID=1105) The motor pulley can be printed or purchased from LittleMachineShop.com: https://littlemachineshop.com/products/product_view.php?ProductID=2261&category= For the spindle lock: 1 x 2" long 1/4"-20 bolt 1 x 1/4" shaft collar (available at Harbor Freight Tools: https://www.harborfreight.com/7-piece-drill-stop-set-38336.html) 1 x 3/8" OD spring To assemble the spindle lock: Cut the threads off of the 1/4" bolt. Slide the spring onto the bolt and insert it through the front hole. Slide the shaft collar on from the other side. Push the bolt into the spindle hole and then tighten the shaft collar's set screw.