WE NEED HELP PLEASE !!!!!!!!!!!!!!!!!! CNC BEGINNERS !!!!!!!!!!!!!

we have just brought a cnc mill and we have been making some models
of pistol grip frames in rhino 3d and we have imported them into
visual mill free as .raw files and then we go through all the setting
up like tool-toolpaths etc............and when we go to cut it out
all it does is machines all the excess metal away and what we would
like to do is just cut out are frame in one hit leaving all the
excess metal untouched we really need some help with this as u were
all in this postion once so please give us a helping hand..........

thanks