And what, you're probably thinking, has that got to do with reloading gear? Well, I've found quite a few bits and pieces to print out for my Lee presses, including a case collator (I needed a second one). There's also stuff for Dillon. Some very nice people are designing these and making the files available via thingiverse.com.
When you live in Australia, where these common parts aren't easily available, this is very handy.