Cantilevered Z-Stage for Cupcake

Inspired by the cantilevered Z stages of the Thing-O-Matic and Ultimaker I designed this upgrade for the Makerbot Cupcake CNC. It should be possible to get 140mm of z travel with a standard x/y stage.

I've designed it to fit a standard reprap extruder. There's room for any extruder, the mounting holes for the makerbot extruder are just a bit too wide.

In addition to a bunch of m3 nuts and bolts you will need a few bits of new hardware: 2 x 268mm lengths of 8mm smooth rod, 3 x LM8UU linea