printrbot3droid / bot3droid z-axis fix/hack

thingiverse

To enhance stability along the z-axis of your Printrbot3D, invert the z-bearings and print two components to securely fasten them directly onto the bearings for better bed support. This temporary solution may not be a comprehensive repair, but it significantly improves performance. Note that when printing these parts, they require support structures. Attach them as shown in the image, where the blue indicates the bed, red represents the bearing, and green denotes the printed component.