fun with unknownium

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...

I use my Shenwai SW900B lathe to do a lot of my projects. this time i wanted to make a full-time tailstock center drill holder, the problem was that i never cut a morse taper before on a lathe. i doubted my ability to make a concentric tool with a MT2 taper that actually worked. that had to...