I have the palmgren 15" lathe (same as the craftsman 15"). The tool post is 22mm (just shy of 7/8") dia.
I think this is the only lathe made that takes this size post. I want to add a bowl and other (higher quality) rests. I bought a post and "S" rest at Woodcraft but the post is too short (3.5") and the rest bottoms out on a 6" bowl. Packard seels a system that's $$$$...$120 for only one complete bowl rest with post. At Monster tools it would be closer to $150. Haven't found anyone else who offers the 22mm/7/8" size. Unfortunately, I am not good buddies with a welder or machinest and the ones I've priced want at least $50 plus materials (getting close to turning supply prices). I've thought about having the banjo enlarged to 1" at a machine shop but that would be $50 plus all new rests for a lathe I only paid $300 for. The same shop wanted $50 to make a simple 22mm" threaded post, 5.5in long in steel.
Any suggestions??? .......Very frustrated with the odd size I'm stuck with!!!