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cerickson
Joined: 14 Jan 2008
Posts: 4
Location: Canada / China
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 Posted: Mon Jan 14, 2008 12:05 pm Post subject: OpenStepper - Phenostream |
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| I’ve just come-up with an OpenServo spin-off that uses a geared stepper motor rather than a servo. I’m interested in any feedback the community may have to offer. |
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hyperkinetic
Joined: 14 Apr 2008
Posts: 3
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| Posted: Mon Apr 14, 2008 8:02 pm Post subject: Bigger stepper? |
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What a cool idea!
Was just wondering if you're thinking and/or can be pursuaded, or maybe encouraged is more of the right word, to continue it on to a larger stepper. I'd like to see something than can rival some of the bad boy servos like the 5990TG ~ 400oz in range. |
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ginge
Site Admin
Joined: 14 Jan 2006
Posts: 1028
Location: Manchester, UK
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guru
Joined: 03 Jan 2006
Posts: 128
Location: St Pete Beach, FL
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| Posted: Mon May 12, 2008 5:33 pm Post subject: |
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I'm not sure why you would want to gear a stepper motor. Stepper motors provide more torque at lower speeds. A gear box provides more torque at lower speeds...did I just repeat myself?
On the flip side, motors provide thier max torque at max speed, so gearing them is desirable as you get the lower speed you desire but have the motor outputing it's max torque which translates to mega torque on the gear box output.
There was a discussion about this at cnczone.com...in the cnc world steppers are rarely geared but instead are directly coupled to the work.
In any case, I am all for openstepper. Now we have open source motor and stepper controllers...awesome! I could see using openstepper design on my cnc machine for closing the loop. |
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