Gears

notes

I cut this out a hard maple and used 1/4 inch dowels for the axles. The thickness of the material is not too important, and should be adjusted before cutting. The holes in the board are spaced .43 inches apart so that both the small and large gears can be placed anywhere on the board. It works best if the holes in the board are not cut all the way through and the axles are just slightly longer than the holes are deep so that the gears ride about 1/32 of an inch above the board. I also used paste wax on the axles and board to make them spin more freely. I used hard maple to make it more durable, but other woods might wok including Baltic birch plywood. Credit to Casey Scott for the design of the gears. The size of the mounting board can be easily altered by just cutting as many rows of dots as you would need and pasting them with one (or more) of the rows automatically alligned with an existing row. If the holes are too tight you can either recut them slightly larger, or sand the dowel axles using a drill. I did not include tabs for the gears because they would be a pain to cut off. Instead, I used two layers of painters tape and CA glue to secure the wood to the table. This worked great, but I did not try to push the spindle too fast. I also left about .001 inch and just sanded off the final bit with a bench belt sander.

machine

X-Carve Pro

materials

Hard Maple

tags