Ah, except that they mentioned in the September 26 update -
Quote Originally Posted by NewMatter
Our newest prototype was born this week! She’s happily whirring along and already out-printing her parents. [filler image] We'll be sending pictures of the printer in next week's update.
which leads me to believe that it most likely prints, they're just dragging out the reveals to make sure they have something each week. Speaking of which, the updates tend to be in the evening, so today's isn't out just yet. (I'll try to post about it here as soon as I can, they have a funny tendency to put them up during my evening commute.)