Print stuttering around curves, LaErrors

Phaedrux

Unfortunately my 30mb gcode file is choking the analyser and it eventually crashes the page. I'll see if I can find a smaller one that was sliced with that version.

CCS86

@brisma said in Print stuttering around curves, LaErrors:

Why 1428 (that's useless) and not 1400 on extruder?

What's useless about 1428 instead of 1400? That's a 2% difference. Seems more than worthwhile to correctly define.

CCS86

Did you guys report this over on the Cura Github?

bot

@CCS86 On Duet2 Wifi/Ethernet, the current can only be set in increments of 100 mA, and will be rounded down always.

IE 1428 == 1400, and 1478 == 1400

On Maestro, the current can be set in increments of 50 mA, rounded down in the same fashion. I'm not sure of the Duet3.

Phaedrux

@CCS86 said in Print stuttering around curves, LaErrors:

@brisma said in Print stuttering around curves, LaErrors:

Why 1428 (that's useless) and not 1400 on extruder?

What's useless about 1428 instead of 1400? That's a 2% difference. Seems more than worthwhile to correctly define.

He means (however bluntly) is that you only have a 100ma resolution with the Duetwifi and 50ma on the Maestro

https://duet3d.dozuki.com/Wiki/Gcode#Section_M906_Set_motor_currents

Phaedrux

@CCS86 said in Print stuttering around curves, LaErrors:

Did you guys report this over on the Cura Github?

No, but I think it's known because the custom build from a few days ago lists "upstream changes" and a fix for geometry simplification, which sounds applicable. I quickly poked around the github of the smartavionics build but not yet the main cura github.

Phaedrux

@CCS86 said in Print stuttering around curves, LaErrors:

Did you guys report this over on the Cura Github?

Could be this one: https://github.com/Ultimaker/Cura/issues/7588

ilektron created this issue in Ultimaker/Cura

closed v4.6 creates significantly more gcode than v4.5, resulting in poor printing performance #7588

CCS86

@bot said in Print stuttering around curves, LaErrors:

On Maestro, the current can be set in increments of 50 mA, rounded down in the same fashion. I'm not sure of the Duet3.

@Phaedrux said in Print stuttering around curves, LaErrors:

He means (however bluntly) is that you only have a 100ma resolution with the Duetwifi and 50ma on the Maestro

Doh, I was reading too fast and thought is was steps/mm. Sorry to derail!

Charlie

@bot and @Phaedrux Thank you for the clarification regarding the 100 mA resolution on the stepper driver! I didn't know this was the case, and I will correct it.

Please feel free to let me know if there are any other issues with my config.g file.

CCS86

4.6.1 is out, which might fix the issue.

Charlie

@CCS86 Yes, Cura 4.6.1 does appear to fix the issue (at least it looks fixed in "GCode Analyzer"). Much appreciated!