2
$\begingroup$

I have a Ender3V2 Creality 3D printer. I recently changed the extruder for a metal one because the previous was broken.

I have troubles to print now. The adhesion layer peels off easily (kinds of bubbles inside that lift it) and the overall quality is poor.

While looking for a solution, I noticed that my extruder was not calibrated correctly. However, following the standard procedure does not fix my problem. Below is what I did and the results:

Extruder diagram

The PTFE tube is disconnected to avoid eventual nozzle problem. I asked for 10 cm extrusion severals times, and the results were as follows (distance in mm):

Experimentation table

Ratio is Transmission ratio E, that I found in Control -> Motion -> Transmission ratio -> Transmission ratio E.

I don't understand these results. The initial ratio change should have corrected the under-extrusion. Returning to 93 should also have given me the same result as initially.

I didn't use any G-code, I just used the printer panel (for both ratio changing & asking for extrusion).

I followed this video, How TO Calibrate The Esteps On A Direct Drive Extruder The EASY Way!

and used this EStep Calculator – V1.1.

Improve this question
$\endgroup$
5
  • 1
    $\begingroup$ Can you explain this "Ratio" in this question? What is it? Is this "E-steps"/"Extruder steps per unit?" $\endgroup$
    – kosteklvp
    Commented Apr 12, 2023 at 18:17
  • 2
    $\begingroup$ You should try to do it via e.g. Pronterface - like in this video. Additionally, I recommend doing this step by step from this Teaching Tech's tutorial. It is the same procedure. It is important to not miss any step, because it can give different false results. Let know if this helps. $\endgroup$
    – kosteklvp
    Commented Apr 14, 2023 at 7:20
  • $\begingroup$ Thank you, I'll try that and let you know ! $\endgroup$
    – AnchorInk
    Commented Apr 14, 2023 at 9:06
  • 2
    $\begingroup$ Hello ! Sorry for the time it tooks me to answer. I know have a raspberry with octoprint to manage this problem. I followed your procedure and my extrusion problem is solved ! I don't exactly understand what is the difference between my previous way to do it, but it works now (my new value is 97.4). Thanks ! I still have troubles printing, but the extrusion step is solved. $\endgroup$
    – AnchorInk
    Commented May 5, 2023 at 20:18
  • 1
    $\begingroup$ Nice! Consider adding an answer with procedure, which solved your problem. $\endgroup$
    – kosteklvp
    Commented May 6, 2023 at 10:25

1 Answer 1

Reset to default
3
$\begingroup$

Thanks to @kosteklvp's instructions in commentary, I was able to correctly calibrate my extruder.

Using a third-party app (octoprint via raspberry pi in my case) gave me more flexibility with settings.

Following @kosteklvp's proposed procedure (at this link) allowed me to achieve my calibration.

I still have other troubles while printing, but no more related to my extruder.

Improve this answer
$\endgroup$

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .