so after ages of wanting to build a cnc mill and not knowing where to start, i finally found this: How to make a mini milling machine- manual or CNC!
perfect! it's exactly what i wanted! i'm building it exactly as described, except i'm using mdf instead of birch plywood. (that won't affect anything, will it?)
now i just need some suggestions on electronics and a spindle to use. I will be cutting aluminum and plastic. and some carbon fiber sheet, actually-1mm thick mostly but maybe up to 2.5mm if it can handle it. I'm also considering trying to get one of these to work on my machine: DoughtyDrive
so i'm pretty sure i want 4th axis capabilities. I will be using stepper motors. I've been considering trying to build my own driver board, but if that turns out to be beyond me- i've also been checking out the hobbycnc driver board, and i've heard good things about it, so i'll be strongly considering that(unless you guys have something better...?)
as for the steppers, i want them to NOT be the limiting factor for what i can cut and how fast. I want the design of the machine to be the limiting factor.
also, spindle wise, i've heard good things about the rotozip...that's what this guy used: http://i53.tinypic.com/5f446v.jpg
but the guy soon afterward decided to upgrade, so i dunno anymore...of course, his machine is a lot bigger than mine... edit: i just realized that scheer is on this forum-yes, that's a picture of your machine!