About this 3D model

This thing holds a led bar on top of the Prusa i3 metal frame (thickness of 6.5 mm) that lights up the printing bed. 1/4" 4-40 bolts and nuts are used to attach the holder to the bar. Unlike http://www.thingiverse.com/thing:117565, the led bar is pointing straight down without an angle. You do not need to drill holes in the frame to install this holder. The v4 versions are are 8 and 12 mm shorter and fit thighter to the frame.