I have two chucks for my Logan lathe with 2-1/4" - 8 threaded mounts. A 8" 4 jaw and a 6" 6 jaw.
I wanted to be able to mount them on my 10" Rotary Table. The table has a MT-3 center hole. So I made a MT-3 spindle with a 3/4"-10 Thread on top and a 1/2"-13 thread in the bottom. The top thread to for mounting adapters on the table. The bottom thread its for a draw bolt, to keep the spindle tight. This adapter is the first for the lathe chucks. I am planning an Alu. platte also. All mounting will be self-centering. The spindle is w-1 drill rod and the 2-1/4"-8 adapter is 1018 CRS.
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