Parametric X idler lift (Z wobble elimination) in OpenSCAD

thingiverse

In order to eliminate or minimize the effect of the threaded rod wobble that moves the carriage in Z direction one could opt for the separation of the X-axis and Z-axis movement by introducing a mechanical spilt between these movements in the form of a lifting block. I've used these in the past and helped me to get better quality parts. This design differs as such that it is a parametric design that could be tailored to your needs. Parameters in this design are e.g. the center to center distance of the guide and threaded rod, height of the lift, guide rod shaft diameter. Note that the source is added for you to change to your needs. Once you changed the parameters to your needs, generate an STL file for slicing. I've designed this part to be used on a larger version of a Prusa i3 style printer to hold a 200x300 bed size. A rework of the X-idlers has been posted here: https://www.thingiverse.com/thing:2579666 Note that the Xidler lifting devices are inspired by the parts: https://www.thingiverse.com/thing:2067676 https://www.thingiverse.com/thing:1858459 https://www.thingiverse.com/thing:808509