Hi guys,
I'm looking at building an OX CNC but wanted to upgrade stepper motors a bit.
Looking at 269oz.in Nema23 - Nema 23 CNC Stepper Motor 2.8A 1.9Nm(269oz.in) 23HS30-2804S - US$
to drive x, y & z
I thought to place a heavier nema23 on z as well since I'm planning on getting one of those 6Kg (13pounds) chinese spindles later on.
That particular stepper motor is a 2.8A, 5.4mH (inductance).
If I follow Gecko website info about amps and max voltage I get:
(3*2.8A)*0.67=5.628A required for all 3 steppers.
max voltage= sqr root of Inductance * 32
max voltage= 74.3v
Now, I can't find any chopper drivers reasonably priced that can handle 5.5A in total, or 2.6A per axis as well as handle max voltage of 74.3v.
Am I just finding ****ty stepper motors or am I trying to use larger Nema23 steppers which DIY scene has no drivers for?
Any input is appreciated.
Id most drives accept around 25v that means my Nema23 are going top be almost useless since theyneed 74v, which means I need weaker steppers, a lot weaker.