I would like to use your services but, I only have an .stl file of my design available. Do you know of a way to convert an .stl file into something that can be read into a CNC machine? the design has zero "backdrafts" and only one semi-complicated structure in it - a 20mm square pocket with the shape of a 1/4-20 nut centered in the bottom of the pocket. it is a 3-d printed automotive roof rack clamping piece that needs to be made of aluminum. If need be, I am willing to send you the .stl file if it will help.
Peter Sripol sent me... :^)