Extended X Bed - 212mm
This part is the DXF file for a bigger bed for your Printrbot Simple. It creates a 212mm print length in X. I cleaned up the open source files from Printrbot so that these cut nicely. Included here is the original source file. This bed was sized to fit into the transport box for the Printrbot (if you happen to have one of those). See instruction tab for more information.
Use this belt tensioner:
http://www.thingiverse.com/thing:407735
Print a grid to minimize your blue tape usage:
http://www.thingiverse.com/thing:266361