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Choosing correct stepper driver board

Posted by anesthetic 
Choosing correct stepper driver board
September 26, 2017 08:31PM
Hello. Newbie here. I'm trying to build a cartesian style base using 17hd40005 22b stepper motors. I plan on using an Arduino Uno, but I recognize that I also need a driver for the motors. Would a Pololu A4988 driver work for this situation? I am unsure, so I wanted to double check before damaging any motors.
Re: Choosing correct stepper driver board
September 27, 2017 02:39AM
The A4988 is only rated at 1 amp with no cooling which would be barely enough to run your 1.3 amp motor. With active cooling it can handle 2 amps. A drv8825 driver can handle 1.5 amps with no cooling and 2.2 with cooling. It would be a better choice.
Re: Choosing correct stepper driver board
September 27, 2017 06:49AM
Be cautious using 8825. They work well but require the use of diodes for smooth and quiet operation.

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Premade boards here: [m.aliexpress.com]
Re: Choosing correct stepper driver board
September 27, 2017 05:19PM
Ok good to know. Glad I checked.

Out of curiosity, are there other driver boards that would also work? I am open to using the diode solution, but I just wonder if there's another one that doesn't have the same issue. If not, I guess I'll order those then.

Edit: Or wait, do those boards already have the diodes? It looks like they do.

Edited 1 time(s). Last edit at 09/27/2017 05:34PM by anesthetic.
Re: Choosing correct stepper driver board
September 28, 2017 04:58AM
I have these drivers and love them: Panucatt SD6128

Edited 1 time(s). Last edit at 09/28/2017 04:59AM by klcjr89.
Re: Choosing correct stepper driver board
September 29, 2017 09:28AM
TMC2100 boards may work as well.
Re: Choosing correct stepper driver board
September 30, 2017 02:56AM
If you want the optimum between cheap, quiet and stable then lv8729 are great. Will go up to 1.5a but your 1.3a motors will run best at around 1.0a, you want to run motors at or below 80% current handling capacity or they will get hot.

Edited 1 time(s). Last edit at 09/30/2017 03:15AM by DjDemonD.


Simon.

[www.precisionpiezo.co.uk] Accurate, repeatable, versatile z-probe plus piezo discs, endstop cables, pt100, 50w heaters. PT1000 cartridge sensors plug straight into duet boards and others.
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