Best Stepper driver for Delta April 18, 2016 02:28PM |
Registered: 9 years ago Posts: 356 |
Re: Best Stepper driver for Delta April 18, 2016 03:31PM |
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Re: Best Stepper driver for Delta April 18, 2016 05:29PM |
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Re: Best Stepper driver for Delta April 18, 2016 06:11PM |
Registered: 9 years ago Posts: 356 |
Quote
dc42
I use a Duet with A4982 drivers, which on the Duet are configured in fast decay mode, and I don't get those rings. A4982 drivers (and A4988, which are simular) are fine as long as they are in fast decay mode.
1/32 microstepping is nice to reduce noise, but using 0.9deg motors (and keeping 1/16 microstepping) not only reduces noise but also improves positioning accuracy, because the torque per unit angular error is nearly doubled.
Re: Best Stepper driver for Delta April 18, 2016 07:10PM |
Registered: 11 years ago Posts: 14,685 |
Re: Best Stepper driver for Delta April 18, 2016 10:01PM |
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Re: Best Stepper driver for Delta April 19, 2016 12:05PM |
Registered: 9 years ago Posts: 356 |
Re: Best Stepper driver for Delta April 19, 2016 03:18PM |
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Re: Best Stepper driver for Delta April 19, 2016 03:38PM |
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Re: Best Stepper driver for Delta April 19, 2016 05:38PM |
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Re: Best Stepper driver for Delta April 19, 2016 05:51PM |
Registered: 11 years ago Posts: 14,685 |
Quote
GroupB
Im not so good with electronic datasheet , I know its your thing DC , if you look at they datasheet THB6128 you see anything special ? are they normal timing so I can return to normal firmware ? I hear they are everything a 8825 should have been with all the small thing fix like a better decay but all those graph in the datasheet is chinese to me. They are kinda expensive and im really thinking about switching to them but I want to be sure its the right choice.
Re: Best Stepper driver for Delta April 19, 2016 06:33PM |
Registered: 9 years ago Posts: 93 |
Re: Best Stepper driver for Delta April 19, 2016 06:56PM |
Registered: 11 years ago Posts: 14,685 |
Quote
roboprint
In my case almost the same ringing behavior with A4982 drivers from Duet 0.6 board (replikeo) with Wantai 42BYGHW811 steppers (2.5A, 1.8mH) running at 1000mA config setting from 12V power supply.
Re: Best Stepper driver for Delta April 19, 2016 07:43PM |
Registered: 9 years ago Posts: 356 |
Quote
dc42
Quote
GroupB
Im not so good with electronic datasheet , I know its your thing DC , if you look at they datasheet THB6128 you see anything special ? are they normal timing so I can return to normal firmware ? I hear they are everything a 8825 should have been with all the small thing fix like a better decay but all those graph in the datasheet is chinese to me. They are kinda expensive and im really thinking about switching to them but I want to be sure its the right choice.
I have never been able to find a proper datasheet for the THB6128, only a "Development proposal" document. Unfortunately, that document doesn't give the timing requirements of the step pulses.
What electronics do you have? Bear in mind that if you are using 8-bit electronics, then even 32x microstepping makes it a struggle for the processor to achieve reasonable travel speeds. So with 8-bit electronics, I suggest 1/16 stepping on A4982 or A4988 drivers.
Re: Best Stepper driver for Delta April 20, 2016 02:34AM |
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Re: Best Stepper driver for Delta April 20, 2016 05:37AM |
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Re: Best Stepper driver for Delta April 20, 2016 06:19AM |
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Re: Best Stepper driver for Delta April 20, 2016 06:48AM |
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Re: Best Stepper driver for Delta April 20, 2016 07:17AM |
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Re: Best Stepper driver for Delta December 31, 2016 10:03AM |
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Re: Best Stepper driver for Delta January 02, 2017 06:36AM |
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Re: Best Stepper driver for Delta January 02, 2017 09:39AM |
Registered: 11 years ago Posts: 14,685 |
Quote
DjDemonD
I haven't tried Raps128 but I am very pleased with the TMC's (2600's I think) on my DuetWifi board. Smooth and silent and the print quality is very good.
Re: Best Stepper driver for Delta January 02, 2017 04:28PM |
Registered: 9 years ago Posts: 5,232 |