Big Zee Printrbot Lead Screw Isolator

by tomburtonwood Mar 15, 2013
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I have the Super Z upgrade and it does not clank around, but I have a 608ZZ (roller skate type) bearing where it seems this washer goes. Do you not have one or was this made to replace it? Just curious...

Fixing the top (or rather both ends) of the threaded rod introduces forces which move the smooth rod causing less aligned layers. This has been known th the raprap community for a long time. (unless you pay megabucks for engineered straight threads like large ACME)