Prusa Bear Y Carriage and build plate

thingiverse

i've designed this to my prusa big bear printer to accommodate 305x305 silicon heat bed the spaces between bearing the same as Prusa Bear in Y direction but wider in X direction and you can us Y helper to adjust the Y rod mount position i did laser cut it with 6mm aluminum everything is the same to prusa bear, this design for whom looking to make bigger heat bed than stock one both sides has 3 bearings in case you need to use 3 or 4 bearings and you can flip it both sides it's mirrored also including 3mm aluminum build plate feel free to remix the design to match your bed screws or anything else the design is stable but if you need more stability you can increase the space betweeen bearing in the Y direction but this will needs to enlarge the aluminum extrusion in the Y direction x,y aluminum extrusion i use for this design has the length of x=450mm , y=430 you will need to chamfer the edges with sand paper for the aluminum after laser cut