Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: MN300 on April 27, 2022, 03:29:12 PM

Title: Why microstepping in stepper motors isn’t as good as you think
Post by: MN300 on April 27, 2022, 03:29:12 PM

Here is an interesting article.

https://www.edn.com/why-microstepping-in-stepper-motors-isnt-as-good-as-you-think/

Title: Re: Why microstepping in stepper motors isn’t as good as you think
Post by: TerryS on June 05, 2022, 04:21:17 AM

A very good read, I did know the microstepping is not a precise system, taking small cuts is the best way to avoid problems. On my mill I use a 3:1 belt reduction which cut the error by 3 but the down side is rapid movement is cut to a third speed.

Title: Re: Why microstepping in stepper motors isn’t as good as you think
Post by: joeaverage on June 06, 2022, 08:10:29 PM

Hi,
yes it is a good article. Microstepping was first proposed by astronomers trying to get better resolution, but as described beyond halfstepping does not result
in reliable increase in resolution, but what it does provide is smooth motion. That the astronomers did appreciate and still use. Regular fullstepping, and halfstepping result in to much
vibration which was upsetting the telescopes after each step. Microstepping reduces that big time.

Craig