https://www.youtube.com/watch?v=LQb5vS97jFo
Printable View
looks like you need to add a vacumn nozzle to the head (should be easy enough to make one with standard shop vacumn fitting), but other than that - pretty good :-)
That's what the pink printed part you see is for. However, we were milling too deeply for the nozzle we have at hand. :)