Looking to buy NEMA 23 steppers

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Woodworker
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Looking to buy NEMA 23 steppers

Post by Woodworker » Sun Apr 05, 2015 6:21 pm

Came across this one on Amazon
http://www.amazon.com/Stepper-Motor-178 ... ds=nema+23

Has anyone used this particular model/vendor? Any thing I should be looking for as I continue this search?
BRuce - SO2 #4798 - IC's Z axis upgrade, customized Z rail and Z motor mount, spindle Dewalt 611

WillAdams
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Re: Looking to buy NEMA 23 steppers

Post by WillAdams » Sun Apr 05, 2015 7:15 pm

That one is a bit overpowerful for most Shapeokos --- http://www.shapeoko.com/wiki/index.php/Stepper_Motors
The 58 oz-in motors listed are sufficient to drive the Shapeoko, but larger motors can be used. Forum Discussion. 125 oz in (9000 g cm) is about the maximum holding torque you can make use of with a Shapeoko-class machine
Shapeoko 3XL #0006 w/Makita RT0701 Router w/0.125″ and ¼″ Elaire precision collets
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Brian Stone
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Re: Looking to buy NEMA 23 steppers

Post by Brian Stone » Sun Apr 05, 2015 7:18 pm

That's the motor that I'm using on my Z-axis, and I purchased it from that vendor. It works great with the GShield.

Keep in mind, the motor will require higher current to operate, and you may need active cooling to prevent the chips from going into thermal shutdown. I glued these little RAM heatsinks, to the chips with Arctic Alumina thermal epoxy. With constant air from a small 70mm PC fan, it's more than enough to keep the Z-axis chip within operating temperature.
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1500x1000mm Shapeoko/X-Carve Hybrid, Nema-23's, Belt-Driven Z-Axis /w ACME Screw, Dewalt 611, Soundproof Enclosure
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Woodworker
Posts: 639
Joined: Tue Mar 11, 2014 1:37 am
Location: 5 miles north of Benson, NC

Re: Looking to buy NEMA 23 steppers

Post by Woodworker » Sun Apr 05, 2015 7:25 pm

Thanks Will, I keep forgetting to look at the Wiki. This isn't a stock SO2, it my larger 1.5M x 1m upgrade so I'm not sure the max would apply here.
BRuce - SO2 #4798 - IC's Z axis upgrade, customized Z rail and Z motor mount, spindle Dewalt 611

WillAdams
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Re: Looking to buy NEMA 23 steppers

Post by WillAdams » Sun Apr 05, 2015 7:29 pm

Interesting. That raises the question, what’s the top-end for motors for the ShapeOko 3?
Shapeoko 3XL #0006 w/Makita RT0701 Router w/0.125″ and ¼″ Elaire precision collets
Nomad 883 Pro #596 (bamboo)

Woodworker
Posts: 639
Joined: Tue Mar 11, 2014 1:37 am
Location: 5 miles north of Benson, NC

Re: Looking to buy NEMA 23 steppers

Post by Woodworker » Sun Apr 05, 2015 7:36 pm

Thanks Brian, I already have the heat sinks. I have just now added the epoxy to my Amazon wish list. I'll get it with my next order. Good to know that it works with GRBL shields, I appreciate the info.
BRuce - SO2 #4798 - IC's Z axis upgrade, customized Z rail and Z motor mount, spindle Dewalt 611

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