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Bridgeport Stepper Retrofit

3/19/2016

4 Comments

 
While having some control issues with the mill, I decided to replace the stepper motors with something newer and more powerful.  I 3D printed end caps that fit over the ends of the motors and secure a connector so the motors are fully modular.  I haven't yet tested the full torque capability of the motors, but I'm pleased with the result.  A little silicone holds everything together and seals out liquids.
Picture
Picture
4 Comments
Jeff link
1/21/2020 01:20:59 pm

I'm looking at a bridgeport with the old BOSS controller and was wondering what size stepper you ended up with? You mentioned Nema34 instead of 42 previously?

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Matt
1/21/2020 05:34:31 pm

I ended up using NEMA 42's. The performance was about the same as the original motors.

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Jeff Rupp link
1/22/2020 01:04:49 pm

What is the oz-in holding torque on the steppers you used?

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Matt
1/22/2020 05:49:56 pm

Hi Jeff,

I used a Keling (Now Automation Technologies) KL42H2150-8A hybrid stepper, with a holding torque of 2830 oz-in.

Matt

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