Hi,
I've been wanting to build a CNC router for a long time, and finally my finances are at a point that I can afford to.
I' have ordered some NEMA 23 motors (these: Wholesale Product Snapshot Product name is 3 PCS 1.8deg Nema 23 CNC Stepper Motor Bipolar 56mm 2.8A 1.26Nm(178.5oz.in) 4 Leads CNC Router Laser Grind Foam Plasma Cut ) and I found a website that had these calculations to work out the required power supply:
I have calculated:Originally Posted by http://www.cnc4everyone.com/electronics/power-supplies/
Voltage = 32 x sqrt of 2.5
Voltage = 32 x 1.58113883008419
Voltage = 50.59644256269407 (close enough to 50v)
Current = 2.8 (amps) * 3 (motors) * 0.7 (70%)
Current = 5.88 A
So, a 50v 6 A power supply.
I found a power supply rated 48v 7.3A. My question is, will this do? It's not quite 50v, but the current is greater, so this will compensate right?