slim pulley system for qubd one up two up

thingiverse

A versatile accessory for the one up two up 3d printers is a simple to implement pulley system modification that streamlines printing efficiency. You will need precisely two top pulleys and one bottom pulley, enabling swift printing results. Technically speaking, this innovative solution has no moving parts, effectively turning it into a cable management guide rather than an actual pulley. However, slight adjustments must be made when integrating the pulley system into your setup - drilling a single small hole on the side of the mdf housing for the lower pulley and acquiring a longer M3 bolt that perfectly fits onto the stepper motor threads on top. Installation Instructions: Securely attach the cable to the z rod brass coupler screw. Then route it around the gantry on the opposite side. The addition of my custom designed filament guide allows the pulley system to function seamlessly with minimal effort required for installation and adjustment. Once the tightening process is completed, and the screw has been firmly tightened into its drilled hole, you will notice that this solution makes minor adjustments possible - making it even more convenient for precise Z-axis movements. For the sake of durability, utilizing a coated cable, typically from an old scanner, can be ideal. If not available, sturdy and heavy-duty fishing lines are another great option to explore due to minimal stress caused by slow z axis movements resulting in less wear.