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new extruder that works
Posted: Sun Jul 21, 2013 9:08 pm
by makerof3d
need some help with my new extruder i just built.
can some help me with a formula on how to come up with..
EXTO _STEPS_PER_ MM
EZ Struder 92.4
Steve's 584
thanks
[email protected]
Joe
Re: new extruder that works
Posted: Mon Jul 22, 2013 1:21 am
by ApacheXMD
Steps per mm will depend on your extruder's drive ratio, hobbed roller size, your stepper motor's degrees/step, and your micro step size.
Or you could just guess, then measure the filament it moved, then adjust.
Re: new extruder that works
Posted: Mon Jul 22, 2013 11:15 am
by cambo3d
A good way is just to measure (if you can) how much filament is moving out of the extruder with the hot end not installed. Like apache stated.
then adjust the steps accordingly till your measurements are right so if you extrude 10mm, 10mm should be coming out the other end.
generally a geared extruder will have more steps per mm, than a direct drive extruder. like those two examples you posted. That should give you a rough starting point.
http://calculator.josefprusa.cz/
http://www.brokentoaster.com/blog/?p=358