Jump to content

UM3 Existing extruder wheel upgrade guide / posts?


Recommended Posts

Posted · UM3 Existing extruder wheel upgrade guide / posts?

First of all, hi. (first post here)

 

I've done a few searches but haven't quite nailed what I'm after. I have an UM3 which has mostly been a joy to use, the only issue I've had so far was having to replace my bowden tube a year into it as they seem to have shrunk, where even fresh material was creating a fair bit of friction while testing manually. 

 

I've been experimenting with various softer material like ninjaflex and rigidink flex PLA, they work.. 80% of the time at slow speeds, and generally the failure happens at the point of the extruder, where the material is grind flat. I have read on here on older threads that people have upgraded to the Bondtech extruders (for UM2) to combat this, I wonder if there has been any documented experiences on just upgrading the knurled wheels to increase torque and grip? While I don't mind spending to upgrade to the Bondtech, I'm not too comfortable with having to mess with e-steps in the firmware, so trying to increase grip while avoiding having to do that. Would appreciate any advice on this for the UM3, thanks!

 

  • Link to post
    Share on other sites

    • 2 weeks later...
    Posted · UM3 Existing extruder wheel upgrade guide / posts?

    Changing the steps / mm can be done without firmware modifications, but then you have to correct it with every print job.

    You can do this in the start code section in your Cura's printer definition:

    G92 E<steps/mm>

     

    Disadvantage is that this gcode now only works on your modified printer.

     

    The UM2+ / UM3 feeder wheels do wear down. When tested with composite material, just printing 1 roll of filament was enough to cause extensive wear on the feeder wheel. That's why the abrasive resistant CC-printcore is not supported on the UM3. The S5 feeder wheel was hardened extra.

    Perhaps you can get a replacement feeder wheel?

  • 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 5.3 stable released
        In this stable release, Cura 5.3 achieves yet another huge leap forward in 3D printing thanks to material interlocking! As well as introducing an expanded recommended print settings menu and lots of print quality improvements. Not to mention, a whole bunch of new printer profiles for non-UltiMaker printers!
          • Thanks
          • Like
        • 56 replies
      • Here it is. The new UltiMaker S7
        The UltiMaker S7 is built on the success of the UltiMaker S5 and its design decisions were heavily based on feedback from customers.
         
         
        So what’s new?
        The obvious change is the S7’s height. It now includes an integrated Air Manager. This filters the exhaust air of every print and also improves build temperature stability. To further enclose the build chamber the S7 only has one magnetically latched door.
         
        The build stack has also been completely redesigned. A PEI-coated flexible steel build plate makes a big difference to productivity. Not only do you not need tools to pop a printed part off. But we also don’t recommend using or adhesion structures for UltiMaker materials (except PC, because...it’s PC). Along with that, 4 pins and 25 magnets make it easy to replace the flex plate perfectly – even with one hand.
         
        The re-engineered print head has an inductive sensor which reduces noise when probing the build plate. This effectively makes it much harder to not achieve a perfect first layer, improving overall print success. We also reversed the front fan direction (fewer plastic hairs, less maintenance), made the print core door magnets stronger, and add a sensor that helps avoid flooding.
         

         
        The UltiMaker S7 also includes quality of life improvements:
        Reliable bed tilt compensation (no more thumbscrews) 2.4 and 5 GHz Wi-Fi A 1080p camera (mounted higher for a better view) Compatibility with 280+ Marketplace materials Compatibility with S5 project files (no reslicing needed) And a whole lot more  
        Curious to see the S7 in action?
        We’re hosting a free tech demo on February 7.
        It will be live and you can ask any questions to our CTO, Miguel Calvo.
        Register here for the Webinar
          • Like
        • 18 replies
      • UltiMaker Cura Alpha 🎄 Tree Support Spotlight 🎄
        Are you a fan of tree support, but dislike the removal process and the amount of filament it uses? Then we would like to invite you to try this special release of UltiMaker Cura. Brought to you by our special community contributor @thomasrahm
         
        We generated a special version of Cura 5.2 called 5.3.0 Alpha + Xmas. The only changes we introduced compared to UltiMaker Cura 5.2.1 are those which are needed for the new supports. So keep in mind, this is not a sneak peek for Cura 5.3 (there are some really cool new features coming up) but a spotlight release highlighting this new version of tree supports.  
          • Like
        • 29 replies
    ×
    ×
    • Create New...