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Thread: G540 & CNC Build
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25th September 2011, 06:42 PM #331
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25th September 2011 06:42 PM # ADSGoogle Adsense Advertisement
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26th September 2011, 10:31 PM #332
Thanks Bob. I might just have to buy myself a copy.
Brad.
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25th January 2016, 09:19 AM #333
It's been a while... so hello chaps!! I've a question. How hot should a stepper motor run? I've 1.2A stepper (42BYGH610 - to be exact) Im adding to my CNC. Im putting an extruder on it for 3D printing. At least that's the plan. The G540 4 axis control my cnc and a 4 axis xylotex contoller controls the rotary through a second parallel port. I've added the smaller stepper to the Z axis slot on the xylotex and tuned the vref voltage down to 1.44v but it's still getting too hot to the touch. Will this kill my motor?
Here's a quick vid of the progress to date..
Thanks
Brad.
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25th January 2016, 04:55 PM #334GOLD MEMBER
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Four and a half years between post, nothing wrong with that.
Amazingly good timing though as just the other day I was discussing online with someone the feasibility of adding a 3D print head to my XYZ-Carve.
I have a spare heat ebd and hotend, just need to print an extruder.Geoff
The view from home
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26th January 2016, 10:25 AM #335
Hi Brad,
60degC is fairly standard for stepper motors. At that temp you can only touch it for a few seconds. I normally try to run them a little cooler though.
That motor will run hot with a Geckodrive (and other PWM/Chopper style drives) due to it's high inductance of 13mH.
Also with a rated voltage of 6.5V the ideal supply is around 20 x 6.5 = 130V
Just run it at the rated current and at whatever power supply you have and see how you go.
Cheers,
PeterHomann Designs - http://www.homanndesigns.com
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26th January 2016, 12:47 PM #336
Thanks Peter. Support at Xylotex also confirmed I'd tuned the controller to match the motor correctly so it's just going to run hot.. we'll see how it goes.
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