Enjoyed watching this, great job mate with what you had to work on 😎👍

I wonder if tolerances that tight were actually necessary, or if it was just some Boss going "I want it _exactly_ on dimension." Actual engineer: "But, sir, we need to give them tolerances." Boss: "Tolerances? Bah, these machinists are so fickle. Okay, what's the smallest they can get the part size wrong?" Engineer, wincing: "Well, they _can_ get down to one thousandth, but that's usually for much smaller--" Boss: "Then put one thousand on the paper. Come on, I want this order out by 3." Engineer: "For which measurement?" Boss: "All of them! You think I want a drive shaft that's the wrong size?"

You are definitely a good machinist. My hats tipped to you. Great video

This is some very impressive machining. Thank you so much for sharing your experience with us!

Lord i miss manufacturing! Been enjoying your videos! Wish i could have taken some vids of my past work. CNC, Conventional, QA, QC, NDT/PT MAG & UT was my past Cert’s.

Another great job Chris.👍

that was awesome to watch, thx for making these

Superbe usinage de grosse pièce avec une précision incroyable, bravo Chris 👍😎

Challenge job there mate but no trouble to you in the end, experience is key as they say👌 thanks for sharing 👍

Wieder einmal ein sehr schönes Video! Am liebsten würde ich hinter Dir stehen und direkt zuschauen - obwohl ich weiß, daß dies niemand mag. Man läßt sich bei der Arbeit nicht gerne über die Schultern schauen. - Hau rein! Weiter so! Ich freue mich schon auf das nächste Video! Beste Grüße aus Dresden! PS.: Den Australier von CEE schaue ich mir auch sehr gerne an. Der hat es auch drauf!

“Beautiful, just beautiful”!!! 👏🏾🙌🏾🔥!!!

Fantastic work. Long shafts are a pain. That job should have been ground with those tight limits! GG from the UK (49 years a turner) Retired now.

Good job Chris!

Great job Chris . 👍

It's amazing to hold such a tight tolerance on such a long piece. Great skill. The ways must be perfect to hold .001" on a diameter. My old Okuma could never do it.

Quite a challenge... and very well finished.

Very nice as always Chris.Hi from Cape May N.J.

It takes a lot of skill and experiens to make a shaft with those tolerantie ! Verry nice job 👍👍👍

Chris, I'd be happy with that result too, Good wrk.

Amazing!

Good job you have done a few before Chris...!! No wiggle room ffs lol

That’s awesome lol Biggest I’ve done is 245”x10” 17-4 ph. Do you guys ever press the shafts to straighten them? We had a giant hydraulic ram captured around a very large and long i beam. I’ve bent some damn thick shafts 😂

Very nice work. Gave me anxiety seeing the specs, and pulling it off without grinding is not for the inexperienced.

прекрасная работа

I kolejna robota na plus , że też często przychodzi materiał zdeformowany i z tak małym naddatkiem a ty się pózniej męcz na maszynie jak to ogarnąć . 👏👍

Hey Chris, could you do a video of how to use the manual guide on fanuc control like programming a part from start to finish that would really help me out?

11:28 awsome surface finish

How do you drill such large work?

Amazing work. I'm not a machinist but I can appreciate the magnitude of getting within a half thou on something so massive. What does something like this go into?

the DNMG good choice for straightening the bar and 25 microns runout 👍

Hi Chris, roughly how many hours from start to finish? 80-90 hours?

Wow even the bearing fits on rock crusher bores I repair are more generous than that for example 400.00- 400.05 mm, at least I get a couple thou to try to hit. And the housings typically are not bent! How many times did you have to flip it end for end?

Ooo zmora każdego tokarza.. krzywy pręt.. i to ten to był porządnie krzywy.. 7 dych do zebrania a tam jeszcze bije.. ale trafiłeś na pręta to.. współczuję.. przerabana robota z takim bananem .

How the freck did you guys drill the center hole?

that thing must have grown in the jungle

sir i am turning 2.5 meter long shaft when i put studyrest in halfway 1side done after when i removed studyrest run out is 0.5 mm in shaft

Is there anything special you do to make sure that the shaft end up with little runout?

💪💪💪

0:11 - How did you drill the center hole? 3:12 - That's *DRILLING*! 5:11 - REALLY appreciate the drawings to better follow what you're doing. BTW, the lettering looks like a 'pencil-CAD' drawing? 5:15 - Hope the estimator allowed enough time to hit +/- half thou. 5:30 - Get closer to the end, and they give you tolerances you could hit with a file!

Why do you use an independent 4-jaws chuck and not a self-centering chuck?

What industry is this part for, do you know? Awesome job as always...! Watching raw ugly stock changing into beautiful shiny part is really satysfying.

The old weeble wobble

How did you get the hole all the way through??? Impressive stuff

great save, that runout was bad.

Bierzesz małe ap żeby uniknac banana? Dlaczego przestawiasz kąt na koniu? Maszyna trzyma wymiary?

it would have been great if you had given some info on where it will be used.

cant get used to imperial... looks so difficult compared to metric

This is small work and basic, can we see a bigger lathe please

Подскажите резьбу нарезаете каким резьбовые резцом.

It scares me watching this, doesn’t bare thinking about what devastation would happen if you lost pressure on the centre. I was wondering how do you get the centre drilled ?thanks for Chris 👌🇬🇧🇪🇺🇺🇦

I do shafts like this all the time not tight tolerance usally plus 0 minus .003 inches for the whole length with a straightness of no more than .015 inches. I usally drop a s/r in near the chuck get it as close as I can and work from the chuck back toward the tailstock by cleaning up a 3inch long section to make a s/r location. Set the rollers and then move about 12 to 15 inches toward the tailstock and repeat the process. Once you get the s/r just passed the center point of the shaft you can go to the tailstock and ripped the material off. I usally go .150 deep a side so .300 total and they always come out fine.

Machining A steel banana ought to be interesting

This job looks like a serious pain in the bum. You almost need a vertical lathe tall enough to cut bands for steady rests, but back in the real world where you use what you have...

а как резьбу померить, не снимая деталь?

What's the cost of that job?

ah yes nothing like machining long skinny shafts, the worst kind are 1.5 inch od and 4 feet long lol (apologies for the imperial)

Would love to watch the gun drill operation.

Scrapping that piece would suck balls.

Здесь одним люнетом не обойтись.

It looks like you were trying to turn a banana!!

Some air in the waterpump..

Location

Qualité 6 en tournage extérieur ! J’ai un doute . Il faut travailler avec les intervalles les plus larges possibles. C’est au concepteur de le savoir . Sinon les prix s’envolent. La qualité coute cher . Si elle est inutile......

Ляпота!