Hopefully you've now got your own ideas brewing about what you could do with the ability to get metal parts out of your 3D printer. This method could easily be modified for casting metal figurines, geometric designs in chocolate, plastic cosplay props, or LED diffusers. Not having to rely on a master to make a mold around really frees you up to design your whole mold making process and iterate on it to dial in some really spectacular parts.
Now that I've got this locking plate, my camera arm is proving to be a really great tool for documenting projects. It's especially useful since I'm almost through with writing a book of soft robotics projects for MAKE along with my co-author Kari Love.
I'd love to see what kinds of projects you come up with using this method. You can see a little more detail on this project, along with more of my work here.