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Choosing correct stepper driver board

anesthetic

Choosing correct stepper driver board
September 26, 2017 08:31PM

Registered: 6 years ago
Posts: 2

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.

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etfrench

Re: Choosing correct stepper driver board
September 27, 2017 02:39AM

Registered: 9 years ago
Posts: 483

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.

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obelisk79

Re: Choosing correct stepper driver board
September 27, 2017 06:49AM

Registered: 7 years ago
Posts: 363

Be cautious using 8825. They work well but require the use of diodes for smooth and quiet operation.

[www.engineerination.com]

Premade boards here: [m.aliexpress.com]

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anesthetic

Re: Choosing correct stepper driver board
September 27, 2017 05:19PM

Registered: 6 years ago
Posts: 2

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.

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klcjr89

Re: Choosing correct stepper driver board
September 28, 2017 04:58AM

Registered: 6 years ago
Posts: 207

I have these drivers and love them: Panucatt SD6128

Edited 1 time(s). Last edit at 09/28/2017 04:59AM by klcjr89.

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obelisk79

Re: Choosing correct stepper driver board
September 29, 2017 09:28AM

Registered: 7 years ago
Posts: 363

TMC2100 boards may work as well.

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DjDemonD

Re: Choosing correct stepper driver board
September 30, 2017 02:56AM

Registered: 8 years ago
Posts: 3,525

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 Khoury

Co-founder of [www.precisionpiezo.co.uk] Accurate, repeatable, versatile Z-Probes
Published:Inventions