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Firmware advice.

Posted by NeoToad

NeoToad

Firmware advice.
October 15, 2023 04:40AM

Registered: 6 months ago
Posts: 1

Looking for some help understanding what I should be using for microstepping in the RepRapFirmware Configuration Tool. I have a skr 3 and I'm using tmc2209 drivers, so should I keep it at 16 for microstepping or go for the gusto and put 256. Or something in the middle not sure what it means really so any help would be greatly appreciated.

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Dust

Re: Firmware advice.
October 15, 2023 06:38AM

Admin
Registered: 13 years ago
Posts: 7,005

Marlin firmware is not "RepRapFirmware" that is different firmware..

you should not use 1/256 mirco stepping all that does is bog down your controller with generating millions of unneeded step pules.

Use 1/16 with INTERPOLATE enabled.

The micro controller sees 1/16 but the stepper driver up scales to 1/256 internally. The driver then takes 16/256 steps for every 1/16th step input.

Edited 3 time(s). Last edit at 10/15/2023 08:42PM by Dust.

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dc42

Re: Firmware advice.
October 15, 2023 02:03PM

Registered: 10 years ago
Posts: 14,672

As @Dust says; except that extruders with very low steps/mm (e.g. 100 or lower) can benefit from x32 or x64 microstepping.

Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].