Here's a video showing a Tormach PCNC 1100 doing some cutting in 6061 with a 1/4" end mill.

This guy records a lot of really good videos! If you're interested in using your machine more you could probably get a good idea of what you can do by spending a few hours watching the videos.

https://www.youtube.com/watch?v=I0MVFvLlOQI