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G-Code, CAD, and CAM discussions / How do you get to g code using cad /cam?

« on: May 04, 2013, 08:36:23 PM »

I'm brand new to machine tools and CnC. I will be taking classes in the fall (next time offered) but trying to get the 'basics' beforehand. I'll eventually be getting a 4 axis CnC capable machine pre-loaded with Mach III.  (shopmaster).What are the steps (software) needed to create a 3D image and get that into G code for Mach III to use? I'm a low budget home hobbyist so don't need NASA capable software. I don't know how all the packages work together or which is best for the hobbyist. Any insight you can provide would be helpful.