Robo R2 Print Head Lower Plastic

This will remove all of the play in the print head. I had already replaced three of the LM6LUU ball bearings in the existing design when I started this. I use a bronze bushing on each end of the plastic which gives me an equivalent of 55 mm long bearings. The bronze bushings should outlast the life of the printer. The bushings are available from Amazon

The PCB mounts with one 3x5 mm socket head screw (optional) and two 3x(10 to 25) mm socket head screws. The board snaps under the plasti