Whether it’s good to replace DRV8825 with A4982 on MKS Sbase. Dear all friends and players, we would like to collect your opinions on whether it’s good to replace DRV8825 with A4982 on MKS Sbase. Following is comparison on these 2 drivers. A4982(Max microstep is 1/16 ) Advantage: 1. Quite lower noise than DRV8825, even at 24V. 2. Excellent printing stability. Disadvantage: 1.Maximum current is 2A. 2. Its withstand voltage is less than DRV8825’s. DRV8825(Max microstep is 1/32) Advantage: Maximum current is 2.5A, so it has excellent cooling and withstand voltage. Disadvantage:1. A little big noise, especially at 24V; 2. Appear print moire, the overall printing effect isn’t so good as 4982. Then, which stepper driver do you prefer? Your idea is greatly appreciated to us. Sincerely https://reprap.org/forum/read.php?1,725939,725939#msg-725939 Wed, 20 May 2026 06:31:00 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?1,725939,727955#msg-727955 Re: Whether it’s good to replace DRV8825 with A4982 on MKS Sbase. https://reprap.org/forum/read.php?1,725939,727955#msg-727955

]]> trampas General Sat, 03 Dec 2016 15:51:12 -0500 https://reprap.org/forum/read.php?1,725939,727942#msg-727942 Re: Whether it’s good to replace DRV8825 with A4982 on MKS Sbase. https://reprap.org/forum/read.php?1,725939,727942#msg-727942 [misfittech.net]]]> trampas General Sat, 03 Dec 2016 15:00:15 -0500 https://reprap.org/forum/read.php?1,725939,727891#msg-727891 Re: Whether it’s good to replace DRV8825 with A4982 on MKS Sbase. https://reprap.org/forum/read.php?1,725939,727891#msg-727891 sungod3k General Sat, 03 Dec 2016 11:00:06 -0500 https://reprap.org/forum/read.php?1,725939,727590#msg-727590 Re: Whether it’s good to replace DRV8825 with A4982 on MKS Sbase. https://reprap.org/forum/read.php?1,725939,727590#msg-727590
I when I started on the stepper motor controller I was using step sticks and testing with the A4988, and then tested with the DRV8825 and found it had large errors on 16x microstepping. I contacted TI and asked them if I was doing something wrong and they recommended buying their new chip as it was suppose to be better...

Here is some graphs and details of the error.
[misfittech.net]

Trampas]]> trampas General Fri, 02 Dec 2016 08:18:11 -0500 https://reprap.org/forum/read.php?1,725939,727546#msg-727546 Re: Whether it’s good to replace DRV8825 with A4982 on MKS Sbase. https://reprap.org/forum/read.php?1,725939,727546#msg-727546 flyway97 General Fri, 02 Dec 2016 05:16:15 -0500 https://reprap.org/forum/read.php?1,725939,727541#msg-727541 Re: Whether it’s good to replace DRV8825 with A4982 on MKS Sbase. https://reprap.org/forum/read.php?1,725939,727541#msg-727541 correct point.
Thanks you so much ,It is much help for us.
We will keep improving that.]]> flyway97 General Fri, 02 Dec 2016 04:55:48 -0500 https://reprap.org/forum/read.php?1,725939,726165#msg-726165 Re: Whether it’s good to replace DRV8825 with A4982 on MKS Sbase. https://reprap.org/forum/read.php?1,725939,726165#msg-726165 similar thoughts so I am going to try both solutions:

- the diode fix
- A4988 drivers

...and report back once it's done.]]> icefire General Sun, 27 Nov 2016 05:07:51 -0500 https://reprap.org/forum/read.php?1,725939,725969#msg-725969 Re: Whether it’s good to replace DRV8825 with A4982 on MKS Sbase. https://reprap.org/forum/read.php?1,725939,725969#msg-725969 cabristor.blogspot.se] It may still whine...

The driver chip's max current spec is meaningless in the context of those driver modules. Your printer's motors use some specific current. All you need to worry about is can the new drivers deliver that much current. Even though the chips are specced at 2A, they can't deliver that when they're soldered to those little driver modules because the chips will overheat.]]> the_digital_dentist General Sat, 26 Nov 2016 05:58:37 -0500 https://reprap.org/forum/read.php?1,725939,725943#msg-725943 Re: Whether it’s good to replace DRV8825 with A4982 on MKS Sbase. https://reprap.org/forum/read.php?1,725939,725943#msg-725943
There way to fix them ( help but not completely eliminate the artefact in delta at least) you have to use them in Fast Decay or some people went with some diode to help that. But in fast decay they are loud.

I have like 8 8825 here and Im planing to build a cartesian printer soon and even there I will not use them, my go to driver is raps128 now, they work wonder, can go 1/128 if your using 32 bit and there are the only one with good cooling since they are mod to cool at the top, unlike all other drivers that cool by the bottom, so 8825 excellent cooling.. I say no, there are the same as 4988 bottom cooling.]]> GroupB General Sat, 26 Nov 2016 03:00:43 -0500 https://reprap.org/forum/read.php?1,725939,725939#msg-725939 Whether it’s good to replace DRV8825 with A4982 on MKS Sbase. https://reprap.org/forum/read.php?1,725939,725939#msg-725939 whether it’s good to replace DRV8825 with A4982 on MKS Sbase.
Following is comparison on these 2 drivers.

A4982(Max microstep is 1/16 )
Advantage: 1. Quite lower noise than DRV8825, even at 24V.
2. Excellent printing stability.
Disadvantage: 1.Maximum current is 2A.
2. Its withstand voltage is less than DRV8825’s.

DRV8825(Max microstep is 1/32)
Advantage: Maximum current is 2.5A, so it has excellent cooling and withstand voltage.
Disadvantage:1. A little big noise, especially at 24V;
2. Appear print moire, the overall printing effect isn’t so good as 4982.

Then, which stepper driver do you prefer? Your idea is greatly appreciated to us.
Sincerely]]> flyway97 General Sat, 26 Nov 2016 02:38:25 -0500