Jump to content
Ultimaker Community of 3D Printing Experts
cashlo

Different materials for the top/bottom skin

Recommended Posts

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

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

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

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Our picks

    • Ultimaker Cura | a new interface
      We're not only trying to always make Ultimaker Cura better with the usual new features and improvements we build, but we're also trying to make it more pleasant to operate. The interface was the focus for the upcoming release, from which we would already like to present you the first glance. 
        • Like
      • 85 replies
    • "Back To The Future" using Generative Design & Investment Casting
      Designing for light-weight parts is becoming more important, and I’m a firm believer in the need to produce lighter weight, less over-engineered parts for the future. This is for sustainability reasons because we need to be using less raw materials and, in things like transportation, it impacts the energy usage of the product during it’s service life.
        • Like
      • 12 replies
×

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!