Awesome work! I just bought a good live center. I should have made one instead like you did.
I have a few questions:
1. What is the lip on the housing for?
2. How do you ensure a repeatable and precision fit between the MT taper and the live center axis? I don't see any way to do that without a register or something at the threaded connection.
Sorry for the delayed response, Christmas and all. The lip has no purpose, as to the threaded part, it only threads in to that point and I have a set screw on the other side of it, it i have the corresponding mark on the shaft of the live center.
You might want to make a spare tip similar to the attached image. It will give you more room to get a tool holder/ insert closer to the workView attachment 19278