Building a Disc / Belt Sander Combo

Updated: Mar 15, 2020


This is Part 1 of a detailed build on my homemade combination disc and belt sander. In this part I go over the build of the base and disc sander portion. In Part 2 I finish the sander by making the belt portion and dust collection ports.

I designed this sander using Sketchup on the computer before building it. This allows me to save time in the build process and I don't have to figure out as much on the fly. It is designed for a 9" self adhesive sanding disc and a 6"x48" sanding belt. The motor is a 3/4 HP furnace motor that I purchased at a surplus store.

Completed Sketchup 3D model of the disc/belt sander combo

Download the Model:

The 3D model in Sketchup can be downloaded from my downloads page.

Watch the videos below to see the detailed build process.

Materials and Purchased Parts:

  • 3/4" Plywood

  • 1/2" Plywood

  • 3/4" Melamine particle board

  • 1/2" Steel shaft

  • 1/2" ID - 1-1/4" OD Ball Bearings

  • 3/4 HP Single Phase Motor

  • 3/8" x 21" V-Belt

  • 4-1/2" Metal Pulley

  • Sheet Metal

  • 5/16" Star Knobs

  • 2" ABS Pipe

  • Various screws/nuts/washers


In part 2 of the disc / belt sander build I show how I built the second half of the sander - the belt sander.