A couple years ago, I made a very quick and dirty rotary broach for a project i was working on in my normal job https://www.hobby-machinist.com/threads/shop-made-rotary-broach-down-and-dirty.48805/ it worked for the purpose it was intended, but i wanted to make an improved version. the new version , i envisioned was precise, robust, and economical. (i priced out a manufactured rotary broach similar to the size i'm constructing, it was over $500 USD) last week, i took up the gauntlet, to...