Jump to content
Ultimaker Community of 3D Printing Experts
lance-greene

Feature Request: Retract while Combing

Recommended Posts

So we have a large format FDM printer that is 30ft long and uses a pellet extruder, and we use cura to slice prints on it. We've had some unique issues pop up because of the size of the prints our machine does, that warrants features that normally wouldn't be needed... like retracting while combing. (or a much further zoom, which we got implemented in 2.6...thanks Ahoeben)

We can have really long travel times on this machine, and normally we have combing turned on as retraction doesn't work very well with the size of our pellet extruder, but that means that after a long travel, the barrel has heated and expanded the pellets inside, which causes oozing and more importantly reduces the pressure in the barrel. so when it finishes its travel and starts printing again there is a slight delay of flow while pressure is built up again.

If you could have the functionality of combing (having the machine do its travel moves inside the part when possible) while also having it retract, that means i could set a very low retract of 2 or 3mm, but have a much higher retraction priming value which would build pressure back up in the barrel, and the combing keeps the part clean.

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

Announcements

  • Our picks

    • Architect Contest | Entourage 01.
      Presenting an idea, an architectural design or something as big as an urban project isn't easy. A scaled models can really help to get your idea across. But besides your main model, there is more needed to get your idea across vividly! An architect regularly uses various entourage sets to help bring these ideas and models to live. 
        • Like
      • 9 replies
    • What The DfAM?
      I'm Steve Cox, an experienced engineer familiar with 3D printing. I wanted to share some DfAM guidelines with this community to help and make stronger parts.
      I'm also an Autodesk Certified Instructor for Fusion 360, so many of the images in ...
        • Thanks
        • Like
      • 17 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!