Jump to content
florian-liegsalz

autoleveling issues second nozzle

Recommended Posts

Posted · autoleveling issues second nozzle

Hi,

 

on auto leveling my seceond nozzle is pushed up on the leveling spot on the right side of the glass bed. The nozzle is pushed until the first nozzle comes in contact with the glass bed. At this point the autoleveling registers something and is continuing. 

 

The result is that the first several layers are all printed with full conact to the glass bed and no material is extruded at all.

 

One reason could be that I needed to remove the complete printhead structure once and might have reassembled the mechanics of the second nozzle wrongly. Is there a manual how to assemble it anywhere? Or do you know another reason why it behaves like that?

 

One interesting thing. If I push in the material from the second feeder as far as possible (by hand) the autoleveling works mostly because the nozzle cannot move up during the leveling...

 

 

thank you 

best regards

Florian

Share this post


Link to post
Share on other sites
Posted · autoleveling issues second nozzle

Hi Florian,

 

Can you try to power down the printer and try again? This might seem stupid, but the sensor is highly sensitive and calibrates itself. If by any chance, you've touched the sensor or had your hands in the machine at the time it calibrates, you could get strange readings causing the printer to not find the bed.

If the problem persists, it could be that the sensor is broken. In that case, please contact your reseller.

Share this post


Link to post
Share on other sites
Posted · autoleveling issues second nozzle

Hi thank you for your replay. This is not a single time error. I experience it for at least 4 weeks now. In this time I have powered down and up the printer several times. Sorry forgot to mention it earlier.

 

Where is the sensor located? On the print bed or on the nozzle?

 

the first nozzle has no issues at all...

Share this post


Link to post
Share on other sites
Posted · autoleveling issues second nozzle

If you drop the print head bracket down, you'll see a small board at the back of the bracket. That is the sensor.

May I ask, is this a UM3(e), an S5 and how old is the printer? If it is an older UM3, it might have a print core spring that has become too loose. Either way, please contact your reseller.

Share this post


Link to post
Share on other sites
Posted · autoleveling issues second nozzle

It is a UM3. I think it is about 2 years old (or 1.5 or something like that). 

 

how is this spring placed? On top of the mechanik below the top of the print head, right? Just to make sure I reinstalled it correctly.

 

I know the small board you talk about. I had one print that got completely catastrophal. Everything was covered with pla inside the printhead from the bottom up until the borderwalls between the nozzles. There is a big probability that this board was actually hit with it too. But I checked the cables connected and these are still fine. Perhaps there is some defect regarding the board. Are there replacement parts for that board?

 

But really the most important question I got:  how is this spring placed?

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Our picks

    • Ultimaker Cura 4.0 | Stable available!
      Ultimaker Cura 4.0 is mainly focused on the improved user interface and cloud integration.
      As always, we want to collect your user feedback for this release. If there are any improvements you can think of, feel free to mention it here and help us to shape the next release.
      • 85 replies
×
×
  • Create New...

Important Information

Welcome to the Ultimaker Community of 3D printing experts. Visit the following links to read more about our Terms of Use or our Privacy Policy. Thank you!