I have the 305 oz-in motors and 36V 14A switching PSU. My gantry is on the heavy side. Even with two motors I can drive it only to a maximum velocity of 60 mm/s. I go faster than that the one of the motors stalls.
I’m thinking of purchasing a 42V PSU. Will it help improve the gantry speed? Thanks!
Short answer: Yes.
Longer answer: By how much, I don’t know.
I wonder just how well/quickly a switching regulator can adapt to changes in current demand and absorbing the regenerated power from the motors. As a GENERAL rule, switchers have smaller output capacitors as too much capacitance will interfere with ability of the switcher to respond quickly to voltage/current changes. I have zero proof to back up my thoughts, and I’m not going to experiment to find out.