Getting the printer has gotten me pumped up about robotics again. The first one I plan to put together is the #SMARS quad mod https://www.thingiverse.com/thing:2755973 with a raspberry pi. I'd like to get a SLAM algorithm working with just one camera. My longer term project is designing a functional Seamoth AUV. It's mostly for fun, but I think it would be cool to map lakebeds like that.