Now this might be a little esoteric because I get the impression that most people who use Klipper are already veterans seeking more performance from their 3D machines.
I'm still learning so I hope this helps someone else (and prevents the pain that I went through) setting up Klipper with this powerful extruder.
Out of ignorance, I figured that
It made sense to me (cough, splutter) that the 3:1 gear ratio would compensate for the 3:1 extrusion. (Wrong...)
So... I went through a lot and I do mean a lot of PLA and PETG with more failed prints that I'm comfortably admitting to with varying degrees of success - often resolved by fiddling like a madman with every setting you can imagine. I mean, how far off could it be?
More than 140 percent! Yeah, you read that right. When Klipper thought it was extruding 100mm of filament it was actually delivering over 140mm - eek!
Just for anyone with the same hardware here's my setting just in case it helps anyone else - 100mm within 1% measured using my calipers.
and here for the sake of anyone else who finds this later on (I'll probably also have it added to my headstone) is a good starting point, but don't be a Draco - calibrate!
I'm still learning so I hope this helps someone else (and prevents the pain that I went through) setting up Klipper with this powerful extruder.
Out of ignorance, I figured that
Code:
[extruder] max_extrude_only_distance: 100.0 step_pin: PB1 dir_pin: !PB0 enable_pin: !PD6 gear_ratio: 3:1 microsteps: 16 rotation_distance: 16.683 nozzle_diameter: 0.400 filament_diameter: 1.750 heater_pin: PD5 sensor_type: EPCOS 100K B57560G104F sensor_pin: PA7
So... I went through a lot and I do mean a lot of PLA and PETG with more failed prints that I'm comfortably admitting to with varying degrees of success - often resolved by fiddling like a madman with every setting you can imagine. I mean, how far off could it be?
More than 140 percent! Yeah, you read that right. When Klipper thought it was extruding 100mm of filament it was actually delivering over 140mm - eek!
Just for anyone with the same hardware here's my setting just in case it helps anyone else - 100mm within 1% measured using my calipers.
and here for the sake of anyone else who finds this later on (I'll probably also have it added to my headstone) is a good starting point, but don't be a Draco - calibrate!
Code:
rotation_distance: 22.355
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