Printrbot Dual Extruder Carriage and Mount

This is a work in progress but thought I would share. This was designed to allow two wades extruders to be attached to a Printrbot. (Or a Dual Extruder Printrbot by Japica, however I may be the only person who owns one of these....) The weight of the extruders is a problem with the 2 x rods that are stacked vertically. (this was the way the extruder mount was designed when I got it from Japica).

I designed the " 3rd rod x axis brackets" to be a glue on part for the current Printrbot parts, i