Ultimaker3 E-steps calibration

[HKlaudia 0]

Hi,

I repaired an old ultimaker3 in my workplace, everything works fine excepts it's under extruding so much. I tried to calibrate in ssh way (I use PUTTY), I found some code from topics before, but I'm not that experienced coding in this way.

How can I  find out what is the steps/mm value of the motor now? Then how can I set it with coding?

And I'm also confused, with what kind of circumstance should I calibrate? Hot/cold, with/without nozzle, with/without tube, I've read a lot of variations.

 

Thanks,

K

[ahoeben 2,012]

Unless you changed the hardware to non-standard parts, you do not need to calibrate the e-steps. The e-steps are a function of how many steps per rotation the stepper motors are, and the gearing of the feeder. If the printer is consistently underextruding, something else is going wrong. For example the feeder could be slipping, or skipping steps. You should not fix that with the e-steps configuration.

 

Do you know that the Ultimaker 3, like all other Ultimaker printers, is made to use 2.85 mm filament (as opposed to 1.75 mm filament)?