Driving 12v Steppers at 90V?

I am starting a large CNC build and I have a general Stepper motor question.

I bought 3 Nema 23 steppers with the following specifications.

12V, 0.68A, 30mH, 200 steps a Rev

On my test rig I am running the motors at 19V and I'm only getting around 2 revs per second.

If my calculations are correct I should be technically able to drive these at 173V

1000 * SQRT(0.030) = 173 Volts

Since I only need around 10 revs per second would it make sense to drive this motor at 90V? Is it going to overheat or skip steps?

Unfortunately thor motors are a very poor choice if you need high speeds. Yes you will need a much higher voltage to achieve the speeds you want. The problem is, it's not easy to find stepper motor drivers that can operate with such high voltages.

I suggest you cut your losses and buy more suitable motors, with much lower voltage requirement and correspondingly higher current. Choose the stepper motor drivers at the same time as the motors.

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Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].