Here is a cool DIY project that guides you step-by-step in making your own fully functional electric coffee maker. I LOVE COFFEE!
It uses 3d printed parts as external structure and for lost PLA casting of aluminum parts. Hey, no one said it will be easy: if you want to do it yourself you will need to melt and cast aluminum. Stay safe kids.
Detailed instructions how to put it together are at:
http://www.instructables.com/id/Electric-Coffee-Maker/?ALLSTEPS
All the files can be found at:
http://www.thingiverse.com/thing:348199
To learn more about lost PLA aluminum casting take a look at:
http://diy3dprinting.blogspot.com/2014/04/photo-buildlog-on-how-to-cast-metal.html
Detailed video guide: http://diy3dprinting.blogspot.com/2013/05/3d-printing-and-metal-casting-tutorial.html