![]() I learned more about the computer packages I taught after I started teaching than before. ![]() It forces us to think about what we're trying to convey and gives new insight we might have not picked up doing it ourselves. ![]() We all do it here when these arguments over whatever subject come into play. Needing to put something into words to articulate an idea to someone else is a huge learning opportunity for the person doing the teaching. just old enough to have owned exactly one manualĬlick to expand.I'm dragging your quote over here from another thread because it's so good. Of course, "really good results off a CNC" are an order of magnitude tighter than "really good results off a Bridgeport" so for slop work, maybe it's easier enough to be cheating, but who pays anything for slop work these days? So even "what's a really tight tolerance and what drives that tolerance" is a question for which having manual training may well be detrimental. There are lots of nuances to getting really good results off a CNC. A CNC native? Sure, by lunchtime fast enough? Even a converted to CNC guy's gonna pucker subconsciously. If someone asks a manual lathe guy for a four start thread that's 19.6 tpi, every fiber of his being is gonna protest. To say nothing of "how would you manually do an inside corner and keep a constant chipload?"Īlso, you end up with the wrong intuition about what is and isn't hard. You'd never, ever, ever do that on a manual mill because the second you get distracted and slow down with the cutter in the cut everything melts, even if you could keep yourself out of the shower of thermonuclear waste it sprays off. So you end up with intuition about what will and won't work that's just plain wrong.įor example, hard milling dry. There are plenty of things you can do with a CNC that there just ain't no way it's gonna happen on a manual machine, either because you don't have the spindle speed, or you're working around acme screws with backlash, etc. Manual experience is detrimental to CNC training.
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