Belfry Fabber Mk1 rev7

This is a conceptual descendant of the CupcakeCNC from Makerbot.

When I originally wanted to make a CupcakeCNC, I ran into the problem that a lot of parts from Makerbot were out of stock. Since I was impatient, I ordered what parts I could (The electronics and the extruder parts) and designed up my own frame to put them in. Then I spent a year improving on it.

The major features are:

* A larger build area (about 165x175x170mm)
* A heated build platform to allow warp-free large buil