QU-BD One/Two-Up Custom Pulley Mod
thingiverse
The fishing line in this design serves to minimize gantry sag. Consult PhantomOperator's design for a detailed explanation of how it functions. Additionally, there is space for installing a standard 608zz skate bearing, which braces the z-rod's top (although an extra piece from the dedicated z-rod holder is required). However, I won't be investing more time in this as a complete rebuild is planned soon. To facilitate editing according to individual needs, Solidworks source files, STL files, and STEP files have been uploaded. For visual reference, check out Phantom's Thingiverse link. The base mount employs screws that connect the stepper, while the top two pieces use the one that secures the rod's top (be prepared to buy longer screws for each part if necessary).
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