EndeR-Theta

Z-Axis Sandwich - 01
The z-axis is a sandwich. Outer plate, then rollers, then inner plate, then more rollers, then the far plate, then even more rollers, and the power supply. (I should make better names for the plates.) And the plates somehow are reversed and the rollers will not fit on the extrusions yet. Time for adjustments!

The bed is able to be rotated!
I have made the mechanism the bed to be able to be rotated, but I still need to add a stepper motor mount and belt.

EndeR-Theta Bed Rotation - 02
I managed to add the eccentric nuts to the v-rollers. But this design creates a cantilevered load on all 4 screws, so I need a top plate that can adjust the hole position to match with the eccentric nuts.

EndeR-Theta Bed Rotation Assembly
I have made a basic draft of the fully assembly to allow for the 3D printer bed to rotate. I still need to figure out a way use eccentric nuts in the design to allow the v-rollers to be adjusted for small defects in the 3d print.

EndeR - Theta Build Plate Rotation - 03
Hopefully, this is the last time I post about this part.

EndeR-Theta Build Plate Rotation 02
I am redesigning the bed rotation rail to be only two pieces instead of 4, and mount to the bed rather than the frame. This allows me to save 4 screws and integrate the large pulley into the rail as a 2 piece assembly.

EndeR-Theta Build Plate Rotation Mechanism 01

I have CADed a 3d printable extrusion for the v-rollers on the understand of the bed to sit on, allowing the bed to rotate, a key part of the Core-R Theta kinematic system I am modifying the printer to use.