Adding sprinkles - Extruder feed rate / Acceleration Tuning
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Having successfully transplanted a Duet3 6HC (3.1.1) / PanelDue5i (1.24) and RPI into my BigBox dual printer I'm now getting to what I hope is the end of the testing / calibration. I've been using
https://teachingtechyt.github.io/calibration.html#intro
I'm now up to the final 2 steps which I never used on my old RUMBA based board and I've had a couple of issue and would like some guidance please.
(1) Extruders are E3D V6 (1.75mm / PETG / 240 degrees) with 0.4mm nozzles- when I try to use G1 E50 F180 it extrudes fine, when I increase the speed to G1 E50 F240 it clogs. However, when I use the inbuilt extrude function at 10mm/s => F600 it works fine. Am I getting my metrics mixed up? Does the extrude function take into account acceleration / flow rate. When I try 20mm/s it struggles which is what I'd expect as I've seen various quotes of around 15 mm/s max.
(2) This leads me onto acceleration tuning, I've not got any advanced settings set up, which method is the one to use as I've not set an M205.
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@Bluemalu said in Adding sprinkles - Extruder feed rate / Acceleration Tuning:
when I try to use G1 E50 F180 it extrudes fine, when I increase the speed to G1 E50 F240 it clogs.
Are you in relative extruder mode before sending those commands?
https://duet3d.dozuki.com/Wiki/Gcode?revisionid=HEAD#Section_M83_Set_extruder_to_relative_mode
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@Bluemalu said in Adding sprinkles - Extruder feed rate / Acceleration Tuning:
(2) This leads me onto acceleration tuning, I've not got any advanced settings set up, which method is the one to use as I've not set an M205.
Set your max acceleration in M201 and then set a print and travel acceleration using M204
Don't use M205 as that's a marlin command. It will work in RepRa, but it's best to stay consistent. Also make sure your slicer is set to RepRap firmware gcode flavour.
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@Phaedrux - That makes sense, I used G91 not M83 although M83 is in my config.g. I'll have a read up on the M204 and get it added in.
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G91 is for XYZ movement, M83 is for the extruder.
Also note that when the extruder is in relative mode your slicer will need to also be set to use relative extruder moves.
