Matt asked about the tenon cutter. This one is from Lee Valley and cuts a 12* tenon matching LV's 12* reamer.
After drilling a 5/8" hole in the seat I ream it to size using the LV reamer and a blank test leg (not shown). Then it is turning and fitting the leg tenon to the seat mortise. I start with making a rough tenon on the lathe. A chisel or drawknife would work as well but I expect the lathe is faster.
Roughing the tenon:
Once the tenon is close I do the final fitting with the LV tenon cutter:
It is kinda like using a big pencil sharpener.
I suspect if I had decent turning skills the tenon would/could fit directly off the lathe. I don't so the tenon cutter is a feel good tool.
I will not have time to finish the stools before leaving for Houston but the parts are ready for final clean up and assembly. I'll have a bench and a working set of tools with me to finish the job and/or split another couple of seats.
Houston, kids (I guess I shouldn't call them kids they have been productive adults for a long time now), grandpeanuts, good Mexican food, BBQ, and Vietnamese to follow along with driving TBMRITS (I-10 The Best Motorcycle Road In The States) about 18 hours each way. When I did my 50 CC Ironbutt ride from San Diego to Jacksonville it only took a little over 40 hours and that included rest stops. It is a long way to Houston and most of it is in Texas. Life doesn't get much better.