Lathe Sander Backing Plate

After my 5″ sanding discs have seen their last days on the random orbit sander, they see new life on the Lathe.

The wood lathe makes a great slow-speed, low-heat sander for quick de-burring of plastic with little risk of melting it. I also use the lathe for sanding sculpted spoons.

I designed an adapter for 1″ x 8 TPI spindles to mount 5″ sanding discs.
(an undersized 4.5″ version is also attached)

3D models maintained @ Thingiverse (click here)

This + plywood circle +

It prints very well. If you have boogers in the threads, you can clean them out super quick using a 1″ x 8 TPI tap (for tapping wood).

Printing Notes:

  • Finer resolution will give better threads. I used 0.1mm
  • PLA works great! I’ve had extremely good experience with AmazonBasics.
  • Beef up your top, bottom, and walls…then go easy on infill.

Tap & Foam:

https://amzn.to/2VC3PNe – 1×8 TPI tap
https://amzn.to/2SLWoBj – Soft density foam interface pad (thin)
https://amzn.to/2OhdeqU – Soft density foam interface pad (thick)


Also, be sure to check out the KitchenAid Sander video. Here’s my blog post about it. It’s basically the same thing but for a KitchenAid:

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