Extruder issues
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Version of nimble 1 or 2 ?
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version 1.1
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These are my settings and they work great
M350 E16 I0 ; configure microstepping without interpolation
M350 X16 Y16 Z16 I1 ; configure microstepping with interpolation
M92 X160.00 Y160.00 Z160.00 E1837.00 ; set steps per mm
M566 X1000.00 Y1000.00 Z1000.00 E40.00 ; set maximum instantaneous speed changes (mm/min)
M203 X18000.00 Y18000.00 Z18000.00 E400.00 ; set maximum speeds (mm/min)
M201 X1000.00 Y1000.00 Z1000.00 E120.00 ; set accelerations (mm/s^2)
M906 X1700 Y1700 Z1700 E400 I45 -
Doesn't that M203 E400 result in your max print speed being ~7mm/s?
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Apologies should be 2400
And you'll need to increase your steps as mines a version 2 only difference is steps due to drive ratio yours need to be higher
But I think the main problem is mA 1000 and microsteps as neither are as recommended by Zesty
500mA max and no interpolation on E as you are already pushing high steps it may overdrive the motor which sounds like you are having that issue ? -
I'll be damned. Your code fixed the issue. Thanks so much!
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I was right where you were not long ago as the site doesn't actually say no interpolation unless you click through a good few page and then it's a bit incidental.
Glad its working better now you can have real fun with retractions! -
@Carlo
Oh and you may want to try lower mA even but not higher than 500 -
Cool. I'm still a bit confused as to why this caused a failure mid-print though. Any ideas?
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Technology doesn't need a reason !
strain maybe on the motor ? that's a lot of pulses !Sorry what are your step for E ? they don't appear to be set
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Sorry they are below ignore!
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M92 E2792; I moved it back to where the others were. Interestingly I changed the M203 E400 to E2400 and the problem came back. So now I am back at M203 E400. I am a little unsure if this corresponds to mm/min of filament or extruded flow, though I lean towards filament. I am using a volcano hotend and 0.7mm line width at 0.3mm layer height, giving a volumetric flow of 12.6mm^3 /s at 60mm/s print speed. That volumetric flow is equivalent to 5.24mm/s of 1.75mm filament into the hot end.
So for every 1mm of 1.75mm filament driven, you can get 11.45mm of 0.7mm*0.3mm extrusion.
So 400mm/min at the extruder equals 76.33 mm/s print speed at those specified layer heights and line widths.
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Only doing the filament calibration will tell sorry you'll need to do it again.
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Sorry remember my gearing is not the same as your mine is version 2 so you may need to lower that because your steps are higher and if to high its the same as increasing vref mA
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@cjorgensenmd said in Extruder issues:
Cool. I'm still a bit confused as to why this caused a failure mid-print though. Any ideas?
If you had sent a M122 diagnostic after the failure you may have been a high number of hiccups, but that's just a guess.
