Robo 3D Z-Axis Limit Switch Fine Adjustment

thingiverse

For early Kickstarter Robo3D models, this 3D printable bracket attaches to the z-axis motor mount, enabling fine adjustments of the z-axis home position. It's a modified version of a concept shared by Cambo3D on the Robo3D forum (http://forums.robo3dprinter.com/index.php?threads/better-z-height-adjustment-mod.838/). The original mod required drilling into the injection molded part, but this version uses a bracket for non-destructive implementation. To install, print the part, insert a 6-32 2" long screw (tapping is optional), mount it to the lower right corner motor mount (a longer screw may be needed), move the z-axis up and push the limit switch bracket down 45 degrees, fasten it to the motor mount screw, and secure with the 6-32x2" screw. Adjust as necessary for optimal nozzle-bed gap.