Hi all

I'm sorry, I'm sure you answer this question a lot but the search tool just finds soooo much not really relating to my question.

I'm new to CNC routing. I've just got a small 600x400 desktop router. We want to be able to make cutouts in up to 3mm aluminium to mount various switches, buttons, LCD displays etc. I'm really not too sure what kind of bit to use though. I thought carbide was the way to go, so I got some Dremel 9904 bits (tungsten carbide). They seem to work, but the flutes fill up very quickly which means they dont cut very well and I have to stop the machine and clean them out (which is hard).

I'm running the feedrate at 500mm/min, 0.2mm/pass which seems to be what people are suggesting reading the forums here.

What kind of bits should I be looking for?

Cheers - Matt