NEMA23 specs for SOPro?

CNC Machines
1

Does anyone know if the X and Y NEMA23 motor specification were ever shared? Sticker mentions 2Amp, that’s about it.

I’m looking into a new controller with closed-loop steppers from OMC.

2

The motors should be similar to, if not the same as:

Stepper Motor - 125 oz.in (200 steps/rev, 600mm Wire)

EDIT: excepting of course the connectors, and also the shaft length.

Some folks have gone w/ more powerful motors, and of course, when replacing the controller, all bets are off, so long as one gets one w/ that much or more holding power.

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3

Thanks Will!

I notice the 1/4" shaft. What sort of pulley is used? I’ll need to find a 6mm or 8mm version since OMC only has very limited options for 1/4" shaft. 6mm/8mm is much bigger.

4

Pulley is a 20-tooth Gates GT2 pulley wide enough to take a 15mm wide belt — you can use other sizes, just need to do the math for steps/mm.

EDIT: So long as the motor torque and so forth are appropriate to the pulley in question.

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5

If you’re in the US you can probably get the OEM Gates pulleys from somebody like SDP SI, otherwise Powge on AliExpress have a good selection

https://powgebelt.aliexpress.com/store/group/2GT-3GT-6-9-10-15mm/528282_500903132.html?spm=a2g0o.store_pc_home.pcShopHead_8157789.1_3_0

6

Yeah, I’ll stick with 20-tooth so the math works out the same.

I’ve bought alot from POWGE for my 3D printer, but alas they don’t have 15mm wide pulleys.

I found another store that has 20tooth 2GT, 15mm wide, with an 8mm bore.

7

I’d suggest the 8mm shaft over the 6mm which is a bit subject to work hardening and failure when tensioned heavily.

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