I am running a shapeoko2 from inventables and bought a 300 Watt quiet cut DC spindle to run on it. The operating voltage range is 24V to 48V. My power source is adjustable to 48V but can only deliver 8.3 amps. I have currently dialed down the power source to 24V to power the stepper motors via the smoothie board.
I assume then my 300 Watt motor won't be able to run at full efficiency since 300W/24V = 12.5 Amps. What happens when my motor can't pull that current from it's power source. Does that mean my spindle can only produce 199.2 Watts of cutting power if I am running the power supply at 24V, and the stepper motors aren't running? If I am running the spindle off of the same power supply while the motors are running will I see the cutting power vary when the motors are pulling current?