Jump to content
Ultimaker Community of 3D Printing Experts
Sign in to follow this  
mattinv

Granuler extruder on the Ultimaker ++

Recommended Posts

Hi everybody,

I have been working trying to find a solution to the filament possibly getting stuck in the bowden tube, and the cost of the print when I will have to use 1.5-2.5 kg of filament. To solve the first issue, I could simply put the extruder on the gantry, like most Reprap. I opted for the Ultimaker design originally because I wanted to keep a light head, insuring accuracy and high speed. Since the gantry, in its current form, is very rigid and can handle quite a bit of weight, I started to explore this possibility.

I also looked at cost of filament, and extruding your own is the only solution for cheap material... The problem seems to be that, if tolerances are not respected, the injection nozzle ends up clogging up, and the extruder often fails to grab the filament.

So to solve both issues , the only solution is to mount the plastic extrusion mechanism and make it into a printing head. I looked at a few designs and articles.

http://reprap.org/wiki/Granule_Extruder_Team

http://forums.reprap.org/read.php?1,70213

http://reprap.org/wiki/GranuleExtruder

http://forums.reprap.org/read.php?1,93966,94775

http://reprap.org/wiki/Web4Deb_extruder

http://forums.reprap.org/read.php?171,40341,40341

To see the various design, check out the blog:

http://3dlargeprinter.blogspot.com

 

I'm open to any feedback you might have. I'll try to start prototyping of the extruder in about 2 weeks.

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
Sign in to follow this  

  • 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
      • 114 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!