65mm Spindle Mount and Dust Shoe for CNC 3018

thingiverse

This is a combination spindle mount and dust shoe / dust boot for a Sainsmart 3018 CNC for a 65mm spindle (e.g., Makita RT0701C). The vacuum intake pipe is for a 1" hose. It's intended to be somewhat modular. I've included the original Fusion 360 design in case you want to tweak it for your setup. I reused the backlash nut and spring from the original spindle holder but bought new bearings. I also didn't try to pull the lead screw nut out of the original spindle holder - I bought a new one. At a _minimum_ you will need: - 2 - M4x20mm screws and nuts. [[Amazon](https://amzn.to/342y4Ed)] This is to tighten the holder around the spindle. - T8 lead screw nut. [[Amazon](https://amzn.to/2DO3cwR)] I have the stock lead screw which has a 2mm pitch and 2 starts. If you changed your lead screw, pick the appropriate nut. - 4 - LM8SUU linear bearings. [[Amazon](https://amzn.to/31Zgiz6)] These are the same bearings as used in the stock spindle mount. You can reuse the ones from the stock spindle mount if you want. - 4 - 12mm x 3mm round magnets. [[Amazon](https://amzn.to/2YF1WDw)] - Epoxy or other adhesive to glue the magnets to the top and bottom halves. [[Amazon](https://amzn.to/2YGUGr6)] If you want the brush on it, you'll need: - Flexible brush, about 60-70mm tall, about 40cm long. [[Amazon](https://amzn.to/2VrdFDK)] - 5/8" hook and loop ("Velcro") fastener, about 40cm. [[Amazon](https://amzn.to/2AbF6Kx)] - Fabric or craft glue (to attach the hook and loop to the brush) [[Amazon](https://amzn.to/3eHF6AP)] If you want to screw the limit switches to the spindle holder for the Z axis: - 4 - M2x6x3.5mm threaded inserts. [[Amazon](https://amzn.to/31ZgO00)] - 4 - M2x12mm screws. [[Amazon](https://amzn.to/3hclo1e)] There's a picture of the limit switches I use down below in the post-printing instructions. You can see them [here on Amazon, too](https://amzn.to/33Yl16W).