I'm currently using 0.9° steppers rated 2.4A with the TMC drivers on my CoreXY (300x200 bed). It's not a perfect combination, but my hotend carrier and the Y-gantry are not too heavy. I would go for 0.9°/1.7A steppers and 24V!
12V is the bare minimum for TMCs.
For a 32bit controller with plugin drivers, the RAPS128 are hard to beat. You can also run them on 8bit controllers, but with limitted microstepping ( 1/64 max. )
12V is the bare minimum for TMCs.
For a 32bit controller with plugin drivers, the RAPS128 are hard to beat. You can also run them on 8bit controllers, but with limitted microstepping ( 1/64 max. )