Printed y-carriage for prusa i3, fits 200x200

Update: I've changed the Y-carriage so that you can also use it with 3 bearings (added bearing holes in the center). I've also uploaded long arms so you can fit a 300x200 heated bed. However, they don't fit on a 200x200 bed, sorry!
My first published thing!
Because I was unable to find the frames for my i3 Rework, I cut my y-carriage out of checkerplate. Needless to say this wasn't very succesfull as the bearings where not aligned very well. I also had too short rods for the y-carriage I had