For example, you probably already know about “Jog Mode”, which is one way to cause the machine to move. There are two approaches and each one involves a “mode”. Once you get used to the idea of using your CNC in that capacity, you’ll be surprised at how easy it is. Imagine how much that would improve your productivity and your parts if all power feeds had that capability. By mastering those 9 simple g-codes I mentioned and a feature called MDI that we’ll cover shortly, you can tell your “power feed” exactly what coordinate to stop on. Most manual machinists would see a machine like that as a tremendous improvement over handwheels and no DRO’s, and wouldn’t hesitate to use such a machine.īut it gets better. It’s just an indicator telling you the exact coordinates the machine is at every step of the way. DRO: DRO is short for “Digital Read Out”.Power Feeds: The machine can move under motorized control.Think of that fancy CNC machine as nothing more than a manual machine that has DRO’s (digital read outs) and Power Feeds on all of the axes. The first trick is to forget about G-Code, CAD, and CAM.
You can do anything on your CNC that the manual machinist can and often faster once you know how… DRO’s and Power Feeds Good CNC machinists can do most anything a manual machinist can do and then some.
They have visions of spending hours making CAD drawings of even the simplest parts and then feeding those CAD drawings through a CAM program to finally produce G-Code, at which point they are finally ready to make some chips. Many manual machinists are under the impression that CNC is only good for manufacturing multiple identical parts, and that one offs are a lot faster to do on manual machines. Have I got your attention? Cool! CNC Can Be Quick and Dirty Too! If you’re a beginner starting out with CNC, this is a way to quickly do some simple things before having to learn all the rest of it. If you’re a manual machinist looking to become productive fast on a CNC, this is your secret weapon and shortcut. I’m going to let you in on a little secret: with just 9 g-codes and something called “MDI”, you can use a CNC to do everything a manual machinist could do only better and faster.
G-Code Cheat Sheet + MDI: Your CNC Secret Weapon CNCCookbook’s G-Code Tutorial G-Code Cheat Sheet? Now You’re Talking!
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