With lots of help from bvanheu - I built this StratHacker which allows me to use virtually any ABS material in my Stratasys Dimension 1200es printer at 1/10th of the cost. ** Update 11/11/2015: I am working on a new shield for the raspberry pi 2 as well as drastically updated code. If you want to keep up with my progress you can follow me on: twitter.com/sneaks_hacks ** Updated 10/15/2015: For those of you looking for 3D files, drawings, and parts... Here you go! STL Files and Wiring Diagram: bit.ly/1RNfscv Case was built around a Raspberry Pi Model B: bit.ly/1jt0GMR Contacts for Chip Slot: bit.ly/1LSW3YG Switch: bit.ly/1Pnt9jY I2C LCD: bit.ly/1OzoNpE RGB LED: bit.ly/1Pxu1l8 NPN Transistor: bit.ly/1RNfBN4 Micro SD Adapter: amzn.com/B00FX26TP0