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Thread: CNC down need new stepper motor
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10th Jul 2020, 08:33 PM #1Novice
- Join Date
- Nov 2019
- Location
- Canada
- Posts
- 14
CNC down need new stepper motor
I am having an issue with a stepper motor on machine that I bought used 6 years ago. The company that makes it is out of business and I need to find a replacement. Most new NEMA 34 motors are using a 1/2" shaft and this one has a 3/8" shaft. I do not mind a bigger motor as I have plenty of space and have updated Gecko drivers but need to work with the pulleys and belt size I have. Here is the info I have.
Current Motor
MCG IH34110
Does not need shaft on both sides as only one is used.
Pully
3/8" ID with 7/8" OD .080 pitch
Any recommendations on motors and or pulley combinations would be great.
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11th Jul 2020, 12:12 AM #2
Hi Norman,
Does this help ? Watch out for wrap !
https://www.ebay.com/itm/MCG-IH34113...-/291961776343Best Regards:
Baron J.
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11th Jul 2020, 10:28 AM #3Diamond Member
- Join Date
- Aug 2019
- Location
- Revesby - Sydney Australia
- Age
- 57
- Posts
- 1,196
Left-field idea:
- Bug cheap NEMA34
- Find someone with a cylindrical grinder (or a toolpost grinder on a lathe), and grind shaft down?
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11th Jul 2020, 01:43 PM #4Diamond Member
- Join Date
- Sep 2006
- Location
- Australind , WA
- Age
- 58
- Posts
- 1,281
Machine the pully out to 1/2"?
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11th Jul 2020, 08:54 PM #5Senior Member
- Join Date
- Oct 2015
- Location
- melbourne
- Posts
- 473
Room for an adapter 1/2 bore one end, 3/8 shaft at the other?
Much easier to go the other way...
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13th Jul 2020, 06:56 PM #6Senior Member
- Join Date
- Jun 2016
- Location
- Sydney
- Posts
- 283
Bore out pulley. Not hard, and pulleys are cheap.
Mounting the pulley so it is centred is key. Use existing hole as a guide.
Cheers
Roger
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