My X-Carve is milling aluminum daily and turning a very good profit while doing it. I have weeks of milling orders stacking up and the X Carve does a good job of making a good dent in those projects with my other two mills. It is not a Tormach, but it sure is making the money to buy one one day. But I am still a full time sports photographer and not ready to walk away from my current employer just yet. For now the mills are saving up to buy some much bigger and better mills while the camera pays the day to day bills.
Most of my sales are custom video production gear, mounts, remote camera rigs and such. But one of my personal projects which I use the X Carve for is custom 3D printer parts. Here is a link to some of that milling. Production level aluminum milling with .8KW water cooled VFD - #47 by Travelphotog