Anti wobbling for Prusa i3

by radus Aug 25, 2013
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What is the purpose of the ZEND part?

It is attachment to the upper end of the thread rod

Yes is used to lower the force of gravity.

Are you just using the weight of the x carriage to pull down when lowering? I don't see that the new parts attach to the x ends in any way.

Now you just need to open up the space between the two nuts and install a spring to also provide a anti-backlash setup.