Cartridge replacement: Ask Nasa or Wolfgang first. The replacement procedure is described here.
WARNING!! Liquid printing material is toxic: msds_001.pdf. Use gloves and/or goggles if needed.
Quickstart
Model and export a binary STL file (see the "Google Sketchup" section below for a ASCII to binary converter).
Copy to the computer with Objet Studio installed
The two computers are connected via KVM switch. Double-press scroll-lock (it will beep) then press enter (on the black keyboard) to toggle between them