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

Small extruder gear shifts on motor shaft - Solutions?

Recommended Posts

Hi,

Launched large print yesterday but found on return last layers missing because small extruder gear position on

extruder motor shaft had shifted such that little gear no longer meshed with bigger gear - hence no extrusion for last layers.

I note there is no grub screw to hold small gear in place (!).

Anyone ever had this ? Any solutions tried ?

What about this from thingiverse ...

http://www.thingiverse.com/thing:4472

??

Best Regards,

JonJude

Share this post


Link to post
Share on other sites
Hi,

Launched large print yesterday but found on return last layers missing because small extruder gear position on

extruder motor shaft had shifted such that little gear no longer meshed with bigger gear - hence no extrusion for last layers.

I note there is no grub screw to hold small gear in place (!).

Anyone ever had this ? Any solutions tried ?

What about this from thingiverse ...

http://www.thingiverse.com/thing:4472

??

Best Regards,

JonJude

I had that same problem at one point. What I did was change the number of washers between the big wooden gear and the extruder. It seemed like the wooden gear was slightly toward one side of the plastic gear, which caused it to slowly push the small gear further onto the shaft. I changed the spacer washers so that the wooden gear and small gear lined up perfectly and haven't had trouble since. When I did this, I had to unscrew the knurled shaft very slightly and tighten the lock nut more to hold the big gear in the right position. This made the black clip on the opposite end slightly more difficult to snap in place, but I finally got it to stay put. As I said, I've had no problem with that small gear moving on the shaft since then.

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  

Announcements

  • Our picks

    • Architect Design Contest | Vehicles.
      We're open for entries! - Design and submit your 3D designs of architectural entourage - vehicles - for a chance to win a large filament pack. Presenting an idea, an architectural design or something as big as an urban project isn't easy. A scaled model can really help to get your idea across.
        • Like
      • 14 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!