A couple of old photos of things I managed to cut on my small Chinese CNC router from Aluminium. The first is the “Arrows of Indecision” (the British Rail and later National Rail logo), the second a pair of gears. Note the gear centre is slightly out of position on one gear as I accidentally set the cut order incorrectly and cut the hole after the outside, and the part moved.

Aluminium Arrows of Indecision

Aluminium Gears