Drill Abrasive Drum

Drum to assemble strips of sandpaper.

I have made two designs:

- 60 mm long x 50 mm in diameter, to use strips of 205x60 sandpaper. You can use standard roll paper 120 mm wide by cutting it in half.

- 56 mm long x 66.8 mm in diameter, to be used with sheets of standard size paper (280x230), cut into 5 strips of 56x230 (see figure 6).

They are tested up to 3000 rpm, which is the maximum of my drill, no problems.

Necessary material (Image 1):

- Printed drum and jaw.

- M8 screw, hexagonal head, 100 mm of length.

- M8 nut.

- Lock washer for M8 to prevent loosening of the nut.

- 1.5 mm diameter wire

Drum mounting:

- Insert the jaw into the corresponding hole in the drum, aligning the hole of the jaw with that of the drum.

- Insert the screw so that the head is fitted into the hexagon.

- Bend the wire at 90º angle leaving 6 mm on the short side and 58 or 54 mm on the longest, depending on the drum we are mounting.

- Insert the wire as shown in fig