Drill Press Disc Sander

Transform a drill press into a disc sander with a few simple attachments.

Step 1: Prototype

Threw this together with scraps of wood and a few clamps. Proof of concept... check!

Step 2: Design

The disc sander is drafted in Fusion 360. This way I can refine the shape while quickly visualizing different designs.

Step 3: Ripping, Sanding, Cross-cutting

Everything is made from a sheet of 3/4" baltic birch plywood.

Step 4: Assemble the Base

3 pieces of material form the base. They're held together with drywall screws.

Tip: A workbench makes a fantastic 90 degree clamp!

Step 5: Make the Sanding Pad

Cut a 9" circle out of some more 3/4" plywood to support the sanding pad.

Step 6: How the Sanding Pad Will Spin

Drill press -> right angle adapter -> 2" screwdriver bit -> 1/2" set screw -> sandpaper (and a lazy Susan bearing holds the sanding disc in place).

ALL THE STUFFS

Drill Press - http://amzn.to/21pGQSL

Right Angle Drill Adapter - http://amzn.to/1SIdIAt

Screwdriver Bit (6 pack) - http://amzn.to/1Y2M4Sr

1/2" Set Screw (8 pack) - http://amzn.to/23iEJQ0

Sandpaper (10 pack) - http://amzn.to/1SFO82g

Lazy Susan Bearing (the 9" inch one) - http://bit.ly/1SIdMQz

Step 7: Assemble It

Connect one side of the lazy Susan to the base, and the other side to the sanding pad.

Step 8: Stick Sandpaper

9" adhesive backed pad of 80 grit paper.

Step 9: Attach the Sanding Platform

The finishing touch is to screw on the sanding platform. A few more drywall screws.

Step 10: Lubricate the Bearing

I used silicone spray here, but apparently that's not good for bearings. If you do this, use machine oil.

Step 11: Attach to the Drill Press

I tilt the drill press table 90 degrees, and secure the disc sander with a clamp from the side.

Step 12: It's Sanding!

This project worked much better than I expected.

HIGH FIVE for reading!