Jump to content
xperiment

UM3 extrude from 2nd nozzle

Recommended Posts

Posted · UM3 extrude from 2nd nozzle

I´ve got a problem with the second nozzle of my UM3. Before a 3d-print the main nozzle extrude a little bit filament and then starts with the object - thats standard workflow.

But I have the problem that after the first layer, the second nozzle extrude also filament to the edge of the heated bed. After extruding this little bit filament the first nozzle is working again and the object will be printed. It is not a big thing, but there´s sometimes a little bit filament left and the nozzle moves it to the layer and mixed the filaments...so I have sometimes different colors in the first layer.

How can I prevent the second nozzle from extruding filament while printing a one-color print? I have nothing found in Cura.

Share this post


Link to post
Share on other sites
Posted · UM3 extrude from 2nd nozzle

You are printing with one color only? It should not prime the second core normally... is your firmware up to date?

Share this post


Link to post
Share on other sites
Posted · UM3 extrude from 2nd nozzle

Yes, one color only. I must check the firmware..but it should be (he´s printing actually). Perhaps a wrong Cura setup?

Share this post


Link to post
Share on other sites
Posted · UM3 extrude from 2nd nozzle

you have to set all nozzle choices to nozzle 1. By heart: support nozzle, and nozzle that is used for build plate adhesion.

If there are no options set to nozzle 2, it will not use nozzle 2, and it will not prime it as well.

Share this post


Link to post
Share on other sites
Posted (edited) · UM3 extrude from 2nd nozzle

you have to set all nozzle choices to nozzle 1. By heart: support nozzle, and nozzle that is used for build plate adhesion.

If there are no options set to nozzle 2, it will not use nozzle 2, and it will not prime it as well.

To be sure I understand this:

Model = nozzle 1 (PLA for example)

Brim = nozzle 1 (Same PLA)

No support = no nozzles employed because only brim and model are using nozzle 1

The reason I ask is that I know I have done that setup before and it did prime the PVA nozzle (#2) and then go back to printing with nozzle 1 from that point on.

Usually, I am using PVA as my brim, unless a material needs its own material such as PC and I have not used that as an option for a while. Almost all prints within recent memory have used a PVA brim at least.

Edit: In the desire to be complete, I would like to add that it may have been on an earlier version of Cura and/or firmware. Currently up to date on both (Not beta) and I just started a 3.3 day print, so I cannot test it to confirm if it still happens.

Edited by Guest

Share this post


Link to post
Share on other sites
Posted · UM3 extrude from 2nd nozzle

I'm not sure about this, but I think even when support is turned off, it should be set at nozzle 1.

So, turn it on, see that it is set to nozzle 1 and turn it off again.

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.
      • 96 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!