There are so many different desktop CNC machines ranging from $400 to $800 that I was looking into when I was making triggers for paintball guns, and most of them would work well for RC.

Can't remember them off the top of my head but a quick google search for Desktop CNC should turn up several 3 axis and a few 5 axis versions. I won't say where on the arrrrgin' Internet you can find some of the softwares.