[musicworld1]

I have a stepper motor with following spac:
v 2.3, A 3, winding resistance 0.77 ohm, inductance 1.04mH, holding troq 834mN.m 118oz./n, detent troq 37mN.m 5.2oz./n, rotor troq 118g.cm2 1oz./n2, weight 650g

I want to use it in a cnc having 3 ft long sqr thread rod 16mm dia 4mm pitch and 4-5 kg x-axis assembly.

Please guide me, can this motor carry the load of x-axis assembly.

Thanks in advance.

[ger21]

That motor is 5-10x larger than you need, and will be very slow.

[musicworld1]

You wrote, this motor can carry 5-10 times heavier load than my requirements (4-5 kg). On the other hand, you said it is very slow.

I could not understand. Please tell me more in detail.

[awerby]

I don't really understand your comment either, Ger. If anything, this 118 oz-in motor sounds undersized for the machine he's contemplating. Why would it be slow? The inductance seems low enough for it to be fairly fast, with most drivers, but I wonder if it would have enough torque.

[ger21]

Sorry, I read that as 1180 oz, not 180. (chair)

As Andrew says, it may actually be on the small side.

[musicworld1]

Thanks you all guys here for expert replies. If you all think that this motor is not able to run with my above described settings, then please guide me that with what kind of lead screw this motor can work with maximum weight of x-axis.

Please give me your kind recommendations.

I am not so much expert in engineering calculations. Please direct me to any thread or any webpage describing how to determine whether a motor can work with a specific lead screw & x-axis load. And you can also explain here.

Thanks

[RCaffin]

Gear that motor down 2:1 or 3:1 and try it. Only replace it if it does not work.

Cheers
Roger