Once upon a time I bought a printrbot, and the dodgy USB serial interface (in windows) is one I’d gladly never touch again. Plus using the sound card is a really convenient way to wiggle mirrors. And just think - you don’t even have to check which side of the plug goes up.
Also - the interface is an afterthought compared to a $100 photo/liquid printer.
I wonder if you could use the drip sensor as a midi click track and just save objects as really long midi files.
If I didn’t already own a 3d printing doorstop I would totally order one of these. (also I swear one day I’ll finish updating and tweaking that thing so that I can fix that coffee grinder)