Eccentric Trochoidal Performance Test v17

Instructions

VERSION: 17.0 NOTE: I have finished SVG files for 5mm cutter, 8mm cutter, and 1/4" cutter. I have not yet finished the SVG file for 1/8" cutter -- that will appear in a pending edit. This is a test of a new CAM approach called Trochoidal Performance Milling. In essence, instead of making multiple passes at increasing depths, you mill the entire shape at full depth. There is a lot of math involved to make sure you don't hurt yourself. That being said, you can still hurt yourself (either physically or emotionally, should the life of your Shaper Origin be reduced or cut short). If you run these tests, it is because you are interested in TPM and you want to assess its viability and do-so at your own risk -- you will take full responsibility over what happens. OK, with the legal disclaimers out of the way ... Some very smart people analyzed the geometry and forces of "stuff" that we commonly shove into CNC machines. Turns out the "stuff" can be really really hard, melty, brittle, or even flimsy, and yet, they can still be routed just not in the "normal" way. However, instead of just being a "Feeds and Speeds" gal, I took it upon myself to dissect this new CAM approach and I came up with my own design -- one that I think will work well with Shaper Origin. Feedback is welcome (just create a forum thread and tag me). It couldn't be simpler ... We've got ourselves either: a. 100mm square with 8mm radiused corners or b. 3-1/8" square with 1/4" radiused corners Instead of cutting the entire thing in multiple passes, you will: 1. Set a depth greater than the thickness of your material 2. Helix cut the white circle to full depth 3. Position the cross-hairs in the safety zone marked inside the helix 4. Plunge into the TPM at the same depth The bit should descend to full depth and then start performing little nibbles around the inside edge of the 100mm (a) or 3-1/8" (b) square. When you are done, you should have a 100mm (a) or 3-1/8" (b) square hole with 8mm (a) or 1/4" (b) radiused corners. Time how long it takes to perform the cut from initial helix to end of TPM. This is related to the following forum thread: https://community.shapertools.com/t/competition-cutting-performance