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This nice thing attaches to your Dremel and lets you make your own M8 knurled bolts for your extruder. Technically speaking it's a "spiked" bolt, not a knurled one, but it's close enough. :) And yes, the name is supercheesy, but I like it anyway.
I made this because the standard Ultimaker knurled bolt doesn't fit the extruder I'm currently designing.
It's modelled in 3dsmax, so no openscad files, sorry :( If anybody wants to make a parametric version be my guest.
Print all the parts. I sliced mine with Cura, 0.2 layers, 25% infill.
2x M3x8 screws
1x M3x20 or longer screw
1x M8 nut (NOT a locking nut)
Repeat until done. Easy ain't it?
In reality it's done in a minute but I wanted to leave detailed instructions so nobody misses something or hurts himself (please use hand/eye protection).
It makes bolts which grip like the devil. Haven't tested them though because I'm still working on my extruder. Hopefully it will be done soon.
KNRLR - a tool for making knurled bolts which are actually spiky by chopmeister is licensed under the Creative Commons - Attribution license.
So what's this mean?
We're sure chopmeister would love to see what you've printed - take a photo and share it on Thingiverse as a Make.
To post a Make simply visit this Thing again and click I Made One to start uploading your photo. You can also download the Thingiverse Mobile app (available via Google Play and Apple App Store) to take a photo and upload your Make right from the app!