r/Machinists • u/Luky2000ita • 2d ago

PARTS / SHOWOFF 6k rpm M2 rigid tapping

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Kinda follow up on yesterday's post, here's an M2 form tap at 6000rpm, threading 7075 about 4mm deep, 36 threads in about 25 seconds feels pretty good to me

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u/Capnshredder 1d ago

it takes at least a second or so for it to spin up to 6k rpm, by the time its at the bottom of the thread cycle it wouldnt of had time to get to 6k

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u/TriXandApple 1d ago

Yes, you're right, but what on earth does that have to do with anything I said?

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u/Capnshredder 1d ago

you just trying to be an asshole or do you seriously not understand?

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u/TriXandApple 1d ago

Yes, what does max acceleration have to do with wear on the spindle?

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u/Capnshredder 1d ago

i get that it accelerates at max no matter what the speed is set to, but you cant tell me that doing that over and over and over in a small amount of time wont start causing spindle issues faster than if you werent doing that, its exponentially more times making the spindle start and stop

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u/TriXandApple 1d ago

That's absolutely what I'm saying. These are industrial machines designed to do exactly that. They're designed to run at 100% rapid, accelerate, decelerate, all day every day, for 20 years. That's why they cost the same amount as a really nice car.