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Couples a 5mm motor shaft to an 8mm threaded rod, ensuring they are coaxial, but allowing some angular movement if the rod is not straight. See http://hydraraptor.blogspot.com/2011/06/yet-another-prusa-z-coupling.html.
Place some plastic tubing over the motor shaft and then clamp it with M3x20 bolts. Make sure there is no grease on the motor shaft by wiping with alcohol.
Yet Another Prusa Mendel Z Coupling by nophead is licensed under the GNU - GPL license.
So what's this mean?
We're sure nophead 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!