My toolpost is an Aloris AXA. I make my own toolholders for it: I put a dovetail up the back of a 1"x3" piece of mild steel about 18" long. When I need a new toolholder, I lop off about 1-1/2" of this, mill a tool slot, and put in clamp screws. It's a good way. For the grinder, though, rather than cutting a tool slot, I put the toolholder on the post, aligned with the lathe axis and at center height. Then I used a boring bar to scoop out a semicircular groove down its length, with the same radius of curvature as the spindle. Finally, I bolted the spindle to the holder. I can mount or unmount the whole assembly in a couple of seconds.

What I haven't done yet is to set up the small overhead countershaft that will drive the spindle. I'll drive this from the lathe's engine, and there will be a round rubber belt running down to the pulley on the back of the spindle. I haven't set this up yet because, really, I don't like grinding on the lathe. This spindle was an exercise more than anything else, and I'm not really concerned about whether or not I'll ever use the thing.

Both ends have labyrinth seals as specified by Prof. Chaddock for the Quorn spindle. I followed his advice and made a hollow end mill from drill rod, four-toothed, and used it to cut the circular grooves in the end caps. It worked well on the second try. (On my first attempt the teeth were too long and thin, and snapped off.)