Bushing mod for TheRuttmeister's Type-A Z-Rider

thingiverse

This alternative model replaces the ten bearings in TheRuttmeister's z-rider design on Thingiverse (http://www.thingiverse.com/thing:5586). Inspired by Prusa's PLA bushing experiment, it eliminates the need for bearings. However, remember to drill the M3 bolt hole yourself. The model comes in two versions - raw-bushing and sleeve-bushing. The former slides directly onto the rod using PLA, while the latter is tailored for a bronze sleeve bearing you may have. Adjustments to SCAD file might be necessary according to your available bearings. Though this design seems promising from rough prototypes, there's still doubt about its ability to handle extruder torque load; it could prompt a switch to Bowden extruder.