Drill Press Disc Sander
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Transform a drill press into a disc sander with a few simple attachments.
Prototype
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Threw this together with scraps of wood and a few clamps. Proof of concept... check!
Design
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The disc sander is drafted in Fusion 360. This way I can refine the shape while quickly visualizing different designs.
Ripping, Sanding, Cross-cutting
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Everything is made from a sheet of 3/4" baltic birch plywood.
Assemble the Base
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3 pieces of material form the base. They're held together with drywall screws.
Tip: A workbench makes a fantastic 90 degree clamp!
Make the Sanding Pad
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Cut a 9" circle out of some more 3/4" plywood to support the sanding pad.
How the Sanding Pad Will Spin
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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
Assemble It
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Connect one side of the lazy Susan to the base, and the other side to the sanding pad.
Stick Sandpaper
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9" adhesive backed pad of 80 grit paper.
Attach the Sanding Platform
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The finishing touch is to screw on the sanding platform. A few more drywall screws.
Lubricate the Bearing
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I used silicone spray here, but apparently that's not good for bearings. If you do this, use machine oil.
Attach to the Drill Press
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I tilt the drill press table 90 degrees, and secure the disc sander with a clamp from the side.
It's Sanding!
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This project worked much better than I expected.
HIGH FIVE for reading!