3 Point Leveling Bed Carriage for 12" bed plate

thingiverse

This 3 point leveling bed carriage is meant to accept Misumi LMUW8 linear bearings (or equivalent) which you press into the open shafts in the corners. These linear bearings ride on 8mm linear shafts for z axis travel. The center accepts a nut for an 8mm lead screw. To implement this setup you need to print two of these carriages. To properly use the 3 point leveling provided by these carriages you form opposing triangles with your hardware such that one triangle tightens the bed down towards the carriages while the other three bolts/screws simply provide support after leveling has been achieved by the other set of three that clamp the bed down. See my pictures for clarification. The springs I'm using in the pictures to support the 1/4" MIC 6 plate are McMaster part number 9657K311 Main hardware is M3 size bolts Works very well with my belted linked lead screw drive: http://www.thingiverse.com/thing:2063609 Original bed carriage idea was developed by Maks Zolin for the Voron CoreXY project.https://github.com/mzbotreprap/VORON