Stay Classy Makerbot
The author claims prior art based on things that were published in 2013, but Makerbot filed their provisional application on October 29, 2012. This also explains why the patent was filed October 29 of 2013, as that would be the last date they can file.I don't really care if you hate the patent system, or hate that somebody wants to treat 3D printing as a traditional business instead of altruistically open sourcing all the things. To publicly lambaste a competitor through disinformation just because they don't share your personal values is about as classless as it gets. This is open-and-shut witch-hunt territory.