Running NEMA 23 motors May 15, 2016 12:42PM |
Registered: 12 years ago Posts: 19 |
Re: Running NEMA 23 motors May 15, 2016 12:51PM |
Registered: 10 years ago Posts: 14,672 |
Re: Running NEMA 23 motors May 15, 2016 01:05PM |
Registered: 12 years ago Posts: 19 |
Re: Running NEMA 23 motors May 15, 2016 01:43PM |
Registered: 8 years ago Posts: 475 |
Re: Running NEMA 23 motors May 15, 2016 03:57PM |
Registered: 10 years ago Posts: 14,672 |
Quote
motley
Thanks for that - looks like I have some more reading to do, I have the specs of the recommended motors so I can match the torque settings with a higher voltage motor.
Is the Duet tolerant of 30V for the stepper drivers?
Re: Running NEMA 23 motors May 15, 2016 04:25PM |
Registered: 12 years ago Posts: 19 |
Re: Running NEMA 23 motors May 15, 2016 04:59PM |
Registered: 8 years ago Posts: 475 |
Re: Running NEMA 23 motors May 16, 2016 04:46AM |
Registered: 8 years ago Posts: 177 |
Re: Running NEMA 23 motors May 16, 2016 05:07AM |
Registered: 12 years ago Posts: 19 |
Re: Running NEMA 23 motors May 16, 2016 05:08AM |
Registered: 12 years ago Posts: 19 |
Re: Running NEMA 23 motors May 16, 2016 06:31AM |
Registered: 8 years ago Posts: 177 |
Quote
motley
Phil,
Thanks for the link - I would be interested to hear how you get on - are you posting the progress somewhere?
Chris
Re: Running NEMA 23 motors May 16, 2016 09:10AM |
Registered: 8 years ago Posts: 475 |
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dc42
The absolute maximum input voltage to the Duet is 35V. I suggest 32V as a maximum planned voltage.
How large will your delta be? A larger machine doesn't necessarily need larger motors, because the effector of a large printer need weigh no more than the effector of a smaller printer. The belts will weigh more, but you can easily work out the additional torque you need to achieve the desired acceleration, given the additional mass of longer belts.
Re: Running NEMA 23 motors May 16, 2016 09:39AM |
Registered: 8 years ago Posts: 475 |
Re: Running NEMA 23 motors May 16, 2016 10:34AM |
Registered: 10 years ago Posts: 14,672 |
Quote
PRZ
David, I feel 3V is a very thin margin, I will be afraid of voltage spikes due to return current generated by deccelerating stepper, especially if you use higher inductance steppers and/or high mobile mass. In addition, if using Nema23 you get mid-band resonances, that may also creates spikes. 0.9° stepper will also increase return current for a given inertia.
Nearing the max voltage may need high capacitors.
Re: Running NEMA 23 motors May 16, 2016 11:50AM |
Registered: 8 years ago Posts: 475 |
Re: Running NEMA 23 motors May 16, 2016 04:40PM |
Registered: 10 years ago Posts: 14,672 |