UPDATE:4/8/12 @5:15pm Alu Bottom plate is uploaded now.
It's just the top piece, but with the holes for the hotend taken out
Here's a simple piece to attach on to the alu extruder plate on the Printrbot Simple 2013.
As long as you have the holes for the alu extruder plate, then you're good to go.
Need 2 M3 screws, and one 1/8" bowden push fitting.
Please make and give feed back!