Tronxy x5s Z Axis Sync Pulley setup

thingiverse

First and foremost, I'd like to extend my gratitude to Donald Craig Yaremko for designing the pulley used in this project and to Eric Jorgensen on the FB Tronxy x5s printer forum for coming up with the precise pulley and belt sizes. Syncing two z-axis steppers can be a challenging task. This file set is designed to help you print pulleys that fit over your current z-screw couplers, maintaining the exact same z-height without any loss of precision. It also includes parts for a belt tensioner that attaches directly to one of your z-steppers on the stock NEMA bolt holes using 3mm screws. To assemble this project, you'll need a few essential components: 3mm set screws, 3mm x 10mm screws for mounting the tensioner, a 608-size bearing, and a GT2 closed-loop belt measuring 1140mm in length. You can easily obtain these parts from Amazon at an affordable price. The pictures show aluminum pulleys as an option, but they're not necessary. To print the parts with optimal results, I recommend using a 50% or higher infill setting and printing the threads with normal or fine quality if you're using Cura (1.5mm or finer layer height). When assembling the pulleys, make sure to align them with the current 90-degree holes on the upper part of the coupler (the sprung part). Be cautious not to over-tighten the belt tension – it's not a guitar string!