Over the years modders have used things like X-Carve, Ooznest and Shapeoko CNC machines and they seem good enough for acrylic, but they're not rigid enough to start messing with aluminium.
For a long time Maki Role/Praetex Design was using a High-Z T-1000 and produced some stunning work, but we're now talking semi-professional equipment costing multiple thousands.
You'd probably be better off heading over to https://www.reddit.com/r/hobbycnc/