this post was submitted on 28 Aug 2023
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my printer has reset the esteps (it resets settings out of nowhere more often) but i can't get it to take the new gcode. (lemm.ee)
submitted 2 years ago by CrowAirbrush@lemm.ee to c/3dprinting@lemmy.world
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My printers do this from time to time where they just ignore everything i did tl make them work and start using factory values.

It always pisses me off but usually once i find which setting it is i put it to what it needs to be and it's done.

It's been 3 days of me giving my printer new e step values with zero result.

At first i adjusted the start gcode in cura but now i'm also using an empty print file with settings and it has no effect.

I have a 30:1 extruder and the values i used so far go from 92 all the way up to 33.000, it actually extruded more at 92 then it did at 33k. The extruded amount seems to be random compared to the e steps i put in, i don't really know what is happening.

I checked the extruder gears and they look brand new.

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[–] fhein@lemmy.world 2 points 2 years ago (1 children)

What printer do you have? If you link a .gcode file where you set esteps in the start code, but it feels like nothing happen, we could check if there's something weird going on. If your extruder has grub screws, have you verified that they're tightened and aligned with the flat side of the shaft?

[–] CrowAirbrush@lemm.ee 1 points 2 years ago (1 children)

I have an ender 5+ with a bondtech direct drive extruder. I don't see any grub screws on it.

[–] fhein@lemmy.world 1 points 2 years ago

It could be something completely different, but if you want to rule out a mechanical issue you could check these things:

  • The orientation of the drive gear, and its distance from the motor housing. Step 12 in this guide It's quite common that people install it the other way because they think it looks wrong. I was pretty close to doing it myself, and had to double check during installation :)
  • There ought to be 2 grub screws, circled in this image. The one on the silvery hobbed gear should be aligned with the flat side on the drive shaft (pointed to by arrow). The one on the brass motor gear should be aligned with the flat side on the stepper motor's shaft. If your stepper motor doesn't have a flat side you can create one using a metal file.
  • IIRC when the BMG is installed you can remove the thumb screw completely to verify that the hobbed gears are aligned with the filament path. If you need to adjust it you can turn the extruder until the grub screw is facing the opening, so you move it without removing the whole extruder.
  • Ensure that the thumb screw has the correct tightness. Step 21 in the official Bondtech guide linked above.