Myth: G-Code Programming is a Thing of the Past

Sometimes, there can be a lot to CNC machining – everything from computer programming to materials science is involved – but paying attention to a few things can make a big difference in the parts that you make. Here are six little things that can make a big difference with your CNC machining.

One of the biggest challenges CNC engineers and designers often face (whether they realize it or not) is designing for manufacturability.

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Most of the time, machinist’s focus on the hardware aspects when they think about surface finish: –  Do I have the right feeds and speeds? –  Is my setup and machine rigid enough? –  Is there too much runout on the spindle? This is definitely the right place to start, but it’s not the end of the story. A great many factors affecting surface finish are tied up in the CAD/CAM software used to create the part program. For example, the part in the photo on the right exhibits a faceted surface finish. This is definitely a software issue (although there are certain servo mis-tuning situations that can lead to that sort of thing). Let’s take a look at some of these critical software issues that affect surface finish: