I've trained about 60 people on cnc machines and I'd say you're not doing too bad.
I draw arrows on the table showing the axis jog directions with a felt marker.
If I'm not sure of a program I sometimes offset my program (G92) so that it runs and inch or 2 above the part for tryout.
Feedrate and Rapid overrides at 10 percent give you lots more time to hit the stop button if something goes wrong.
Don't feel bad. Buddy of mine with over 15 years experience ran his linear motor gantry machine into the side of a mold at 2500 IPM. Tore the entire 4th and 5th axis milling head off the machine. Total bill $64,000.00
The best way not to make mistakes is through experience. The only way to get experience is by making mistakes. All I ask of my guys is that every oops teaches them something. (of course it's hard not to get mad when I'm the one footing the bill)
Bob
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You can always spot the pioneers -- They're the ones with the arrows in their backs. |