onlinemetals was having a sale so I got a foot of 1/2" titanium round in "grade 2", whatever that is.
I tried it out on the Sherline lathe. The stuff makes stainless steel look like brass. Never seen anything work harden as fast, or make such nasty sharp chips that never break off and just make a brillo pad.
Like the folks on the internet say, as long as you don't interrupt your cut and don't back off on cutting pressure, it's not bad at all.
The real struggle is always with parting off as everythings wants to slip out of square on the tiny lathe. I measured the thicknes of the chip that came off with a HSS parting blade at 0.005 when things we running OK.
I cut with "relion" cutting fluid, and got a little smoke as Ti gets hot when cutting as it's apparently a bad conductor of heat.
The stuff takes a decent finish and cleans up real nice with fine sandpaper if you're real forceful.
Can't wait to try to cut some threads on it.