Model may be scaled and placed wrong. My CAD software has an issue exporting to .stl. The print is intended to be printed with the flat mounting surface on the bed.
A block to mount your linear bearings to with one 5mm ziptie. Designed to fit IGUS LMU8 bearings. Fits 15mm outer diameter x 25mm or shorter.
The purpose is to provide a light, minimally constraining and easy to use mount.
Bearings are attached with a single ziptie to allow for the bearing to pivot around its center point and not bind on the linear rod. Applying torque and pressure in various directions after installing will cause the bearings to settle in and slide freely over the linear rod.
I printed mine with support simply as a reassurance. Most printers should be able to bridge the gap.