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A useful tool for guitar building is a thickness sander.
This is used to thin the sides and back pieces to the required uniform thickness.
Commercial models are available, but I decided to build one as a temporary solution and now I use this on all my guitars.
The thickness sander has a motor driven "drum" that is covered with sandpaper. Below the drum is a height-adjustable
table that can be raised or lowered to sand different thickness of wood. The main use is sanding thin pieces like guitar sides
that are one-tenth of an inch thick. But you can also use this tool to sand solid guitar bodies and other pieces. It works
great for sanding wood bindings.
Two bearing units hold the shaft that is inside the sanding drum. These are known as pillow block bearings.
A pully wheel connected to a motor provides the rotation.
The bottom of the drum should move toward the operator, and the wood is pushed into the turning drum.
If you want to build this tool, please take look at my version and modify as needed it to work for you.
Here is a little trick to make a single piece of 2 foot square plywood create the two sides of the tool:
I created a 0.035" thick piece of mahogany on the first trial run. The dust collection system is in progress...
Many thanks to the great folks at the MIMF for their ideas. (www.mimf.com)