[dexter4000]

Im planning on building a CNC Milling machine out of t-slot frame for cutting aluminum and mild steel.
Does anyone have one or has any suggestions in building one for milling metal and if its sturdy enough?
Also , what is the best spindle for milling metal? Are the china ones good ?

Thank you.

[jblakes34]

I am also wondering if I can mill mild steel with mine. I am close to having mine built. It's a gantry style, hoping for it to be pretty versatile. See pics on my post: My machine, need motors and controllers - CNCzone.com-The Largest Machinist Community on the net!

I have a porter cable 690LR router on it with 1/4, 3/8, and 1/2 inch collets. I suppose it's just a matter of finding the right mill bits. I'll be interested to know what you find out about that.

jb

[dexter4000]

i dont think as other suggested also t-slot will work for milling aluminum or steel as is not sturdy enough.
I'll be building mine from 4130 square profile steel.