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

KNRLR-a tool for making knurled bolts (spiked actually)

Recommended Posts

As the title says, I designed a small contraption for easy DIYing of spiked extruder bolts. Really comes in handy if you are designing your own extruder and the UM bolt doesn't fit your needs. I'd be really grateful if some body could port this to OpenSCAD and send me the files to add to my thing, since this isn't really customizable.

The name is cheesy and a bit misleading but it kinda grew on me so I left it like that. Hope you all like it. :)

http://www.thingiverse.com/thing:21782

Edit: Doh, forgot to paste the link!

Share this post


Link to post
Share on other sites

I, too, have a severe hatred of vowels.

But it seems like a cool design. How does the printed gear stay on? I'd be worried about it working loose because of the vibration of the grinding. Wouldn't it be better to put the gear around the hex part of the nut? Haven't tried using it but I think I'll print it out soon :D

Share this post


Link to post
Share on other sites

I'm a bit short of time due to work, but I was thinking of modifying this design to make real knurled bolts when I catch some time off. The main operating principle would stay the same - a printed gear as a guide (but a more precise one), but you would cut the bolt twice, at 45 degree and -45 degree angles, to produce a knurled pattern. If anybody has any suggestions on that, let me know.

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

    • How to 3D print with reinforced engineering materials
      Ultimaker is hosting a webinar where we explain how you can achieve and maintain a high print success rate using these new reinforced engineering materials. Learn from Ultimaker's Product Manager of Materials and top chemical engineer Bart van As how you can take your 3D printing to that next level.
      • 0 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!