Sandpaper Holder

This is a block to hold sandpaper with a flat bottom. Since sandpaper pages are 9"x11" I sized it for a 2" x 9" strip of sandpaper.

Components:
1x base
1x wedge
2x knobs

You will also need two 1 inch 1/4-20 hex bolts and 2 1/4-20 hex nuts. I glued a strip of thin foam on the bottom to add a little bit of pliability to the sanding surface.