The Barrel Sander is coming along again, after a small detour to build the (M003) Auto Loading jig.  Here is the nine sides bolted inside the barrel.  They do three things:

1. Make the barrel stronger so the wheels that it turns on have more support than just thin metal.
2. Provide a disrupted circle which will cause the materials to actually turn instead of sliding.
3. Protect the inside of the barrel from the sanding action.