Sandpaper sheet cutter

I made it at TechShop http://www.techshop.ws

If you have a 1/3 sheet or 1/4 sheet finish sander, then you know that pre-cut sheets of sandpaper can be purchased, but how many times have you cut your own from a full sheet? You probably cut it crooked with a utility knife, dulled your scissors, or tore the sheet.

Well not any more. Now you can easily cut perfectly straight 1/4, 1/3 or 1/2 sheets every time.

Materials needed:

Scrap 3/4" plywood, particle board or MDF
(1) 10" hacksaw blade (longer blades can be used, but you will need to adjust the design to fit.)
(2) #6 x 3/4" round head wood screws

Tools needed:

Laser engraver/cutter (available at TechShop)
Sanders
Screwdriver

Step 1: Layout

Sketch a layout, such as the one shown in this step, to mark the proper sizes for the different size sheets, relative to the cutting edge of the saw blade.

To save yourself a step, you can also download our .DXF and CorelDRAW files at http://www.lime3D.net/instructables/sandpaper_cutter.zip

Comments

[anasdad]

Not exactly rocket scientist, but an outstanding job! I will be making one for my shop. thanks for posting it!
Ken

[FN64]

I've dulled my share of utility blades.. I LIKE IT!!!!
Gonna have me one of these by tomorrow afternoon.
Thanx..FN

[coolbeansbaby68]

Pretty smart idea!!

[lime3D]

Thanks. You could also skip most of the construction steps, and just screw a hacksaw blade to your workbench, and draw a few guidelines. But at least this version is portable.

[Denger]

Simple yet effective! Nice 'structable.