Geeetech

Hi, I have a problem with the A20M. I have set the E-Steps to 430 and now extrude 100mm over the right extruder then he also extrudes 100mm. He extrudes the left extruder from 100mm but only 60mm. That brings me with the printing really problems because too little filament from the left extruder engine comes. What can I do there? Can I set the E-Steps for each motor individually?

Bernd

For the multi-mixer extruder.
If you want to check the e step of it.You need to set the Mixer percent at first
Eg:
Mix:100/0 or Mix:0/100.
Then test it,you can get the result of it.

I have exactly the same problem (previously selecting the mixer 100/0 and 0/100), I have done several tests:
1) I have changed the cables to rule out voltage problem with the same result.
2) I notice how the wheels of an extruder are more forced than one that seems softer. I have tried to tighten and untighten the spring always with the same result
3) Finally I have removed the tubes and let the filament run without pressure and I have measured exactly the same extrusion

I have come to the conclusion that there is an obstruction in the hotend

Can you do the same test?

NOTE: I think the steps of the official firmware are incorrect for the A20M, the correct ones are 430-435

yes it should be around 430.
if you want drive the estepps different for every extruder you have to change some values in the marlin firmware