Took about 4 hours to build the Printerbot (including a short dinner break). Last night it was time to calibrate the optical end stops and do a test print. Here is short clip of it's first print, the obligatory 20mm test cube.

http://www.youtube.com/watch?v=7pdu54pkXdU

Looks like we have 6 printers in our PA print farm and 3 in NJ now? Guess we will have to figure out which ones to bring to Maker Faire in September?

(Jim, I have 41 years experience working on cars, and 35 years as a Auto Shop teacher)