Re: Milling aluminum with desktop CNC router
So long as you clear the swarf and use a lube, (WD40 works best although it stinks and is bad for you, I use lanolin myself), you can use any 1 or 2 flute carbide tipped or HSS router bit long enough. When doing aluminium it's more the lube stopping aluminium sticking to the cutter that helps get a good result.
You can of course buy metric endmills off Ebay for a few bucks as well.
cheers, Ian
It's rumoured that everytime someone buys a TB6560 based board, an engineer cries!