Jump to content
cashlo

Different materials for the top/bottom skin

Recommended Posts

Posted · Different materials for the top/bottom skin

I am inspired by this video https://www.youtube.com/watch?v=KV2AjyowXX4 to try printing with multiple color on my single extruder U2+,

My idea is to use a different material for the top/bottom skin, by swapping the material before and after printing the skin.

I want to make a post-processing script to add a "M600 - Filament Change" to the gcode.

 

Now my question is is there a script that already does that? I am aware of the "Filament Change" script but it only does z level now.

Also, is there a option to only change number of walls for top/bottom?

Share this post


Link to post
Share on other sites
Posted · Different materials for the top/bottom skin

One thing to consider:

the UM2(+) does not support M600 AFAIK, but you can change the filament during a normal pause (M0).

 

To mimic the stacked processes of S3D one has to print one model / color after another. I don't know if this is possible (only) with post-processing?

The simple way would be to start each "layer" as a separate print, just take sure that the buildplate stays hot between the prints.

Or perhaps combine the gcode files with some scripting?

 

Share this post


Link to post
Share on other sites
Posted (edited) · Different materials for the top/bottom skin

Hey, you made the firmware I am running! :D

 

I have finished the script, and it does what I wanted:

IMG_20190104_224212.thumb.jpg.57840f257e934744671e9ae35585c839.jpg

The T-rex looks a bit sad but I should be able to fix it by tuning the retraction setting.

 

The M600 command is ignored, but the M0 works just fine, just needed to modify the other pausing script a bit.

 

And it turns out finding the top layer is not so straightforward, I tried using the ";LAYER_COUNT" value-1 but that gives a bigger number sometimes, using "data[-1]" just give me M107 and the things after. I end up going backward in the data and just use the first layer I found.

 

If anyone want to try it here's the script:

https://github.com/cashlo/Cura-post-processing-scripts/blob/master/PauseAtTopAndBottom.py

 

IMG_20190104_224212.jpg

Edited by cashlo
  • Thanks 1

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.
      • 87 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!