These stabilizers replace the zip-ties originally used to position the LM8UU linear bearings on the Printrbot LC. http://www.thingiverse.com/soke is developing a modified version for the PB+ V1. The end result is a sturdier print bed and chassis for better printing. Inspiration taken from the official Printrbot stabilizer upgrade. Volume: 2.12 cubic inches ABS Weight: .08 poundsLeft Stabilizer requires: 2 #6-32 x 3/4" Screws 2 M3 x 16mm Screws 2 M3 NutsRight Stabilizer requires: 2 #6-32 x 3/4" Screws 2 M3 x 16mm Screws (screws into Y axis motor)Attach the stabilizer plates to your Printrbot. Insert some folded paper between the bearing and the bearing slot(s) to adjust desired tightness. Don't tighten the screws down all the way yet!Notes: Both parts will require supports to print successfully. Drilling out the screw holes to the proper diameter may/will be necessary. (9/64" and 1/8" for #6-32 and M3 respectively, if memory serves.)I recommend using the bed stabilizer in conjunction with my z axis stabilizer for additional robustness! http://www.thingiverse.com/thing:55053