Reduced Binding Y bearing Block for Zaribo & Haribo

cults3d

This is my original design for a bearing block that contains the bearing in X, Y, Z, but allows free rotation about the Z axis. This allows you to install your Y axis smooth rods and bearings with minimum binding. There is a cap that screws down over the bearing, which can be left loose enough to allow the Z axis rotation to continue or can be clamped down harder to freeze the bearing in position. There are two included versions: one for 15mm OD bearings such as LM8UU and one for 16mm diameter bearings such as the blue PBC Linear Teflon bushings I am using on my Zaribo. Each bearing block consists of two parts - the "holder" and the "cap". Eash assembly will require six (6) M3 square nuts, four (4) M3x16 or M3x18 screws to hold the cap onto the holder, and two (2) M3 screws to hold the holder to the bed carriage. If you are using a Prusa carriage, which is 6mm thick, these two mounting screws should be M3x10 or M3x12. If your bed carrier is 3mm thick, go with M3x8 or M3x10. NOTE: The design intent of this block can be used for any printer, but the specifics of the geometry make this particular one suited to the Zaribo and Haribo. FYI, The two mounting screws are spaced 20mm apart. Video: https://youtu.be/nvczhgm9Ipk