I see people telling you it cant be done. Thats just not so!
I have built two 3 axis machines in my garage with excellent results for under
$1000.00.
My latest has an x travel of 12" and y travel of 10".
Z travel is about 5".
I use THK liner slides and bearings for all axis and cheap stepper motors for lead screws.
It is very accurate and can do excellent engraving and light milling in brass and aluminum.
If you would like some pics and more info you can email me at:
atoroguy@aol.com
YOU CAN DO IT