Foldable printers are very intriguing! The first decent one I can think of is the original Printrbot jr and the Bukito. They were / are two decent printers, but one thing they really lack is build size. Another thing that has plagued other portable printers has been misalignment issues. Does this one have any safety guards in place to help combat misalignment issues? I am definitely interested to see what this one may look like.
Do you or he plan on sharing the build process? It sounds pretty cool so far!