Taper Cutter

简介

This cutting jig is for creating tapered tenons out of dowels or adjusting the size of a taper you may have turned on a lathe. The specific application I had was for making Windsor chairs, where the legs have tenons that must precisely match the seat holes. The traditional way to do this is to drill and taper a block of wood, then cut out a bed for your cutter. Plane blades work well for this. This video [https://www.youtube.com/watch?v=mjFnMjlt6SE] shows that process.You can also buy ready made tenon cutters from places like Lee Valley Tools, but I need one to match the specific reamer I had.Also, I didn't have a block of wood that was big enough for my plane blades. So Here's the 3D model I came up with.Since you may need a different taper angle or if you want to just borrow the blade from your Stanley #4 plane or #151 spoke shave, I've included the models (the original Fusion 360 along with exports to .step and Sketchup .skp) along with the .stl files. I made the original model parametric, so hopefully these exported correctly and you can adjust them if needed.How I modeled it:I followed the steps I would have used to make this out of wood. I started by taking some measurements the reamer itself, modeled that and created a solid cone shape. Next I drew a box centered on the cutter and offset it to the major diameter I wanted and subtracted the reamer volume for the box. Sketches based on the top and bottom of the box allowed me to locate two parallel lines that defined a…