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Published on Sep 1, 2011
If you are tired of your crappy original Z coupler that came with your Prusa set and/or can not find a solution for it that suit your needs I have adapted the z coupling system from The RobunDel to also fit your Mendel Prusa.
This solution take all the downwards strain that is applied on your z motors away from the stepper shaft and transfer it to the bearing and bearing holder. This way the only job for the Z stepper motor is to make the rotational torque... JUST AS IT SHOULD BE! :-) see more at http://www.thingiverse.com/thing:11187