SPUR PINION SHAFT / ROUGH & FINISH / CNC LATHE (Kuty wał)

[@TheCymbalProject]

I can't be the only person who finds rough turning to the be one of the most satisfying things to watch... ever.

[@akulawien1975]

Watching is fine,but when you stand in Front of the Maschine and the hot Chips fly around your Head,than it is not soo satisfying.....😁

[@emrfixit]

Rough turning on ends too!

[@mbury8004]

@@akulawien1975 🤣

[@zundappchef]

the ticking of the falling chips does remind me of the rain a little . its so calming also satisfying to watch this 9/10 would recommend

[@hfdzl]

Love the smell of hot steel and burning chips in the morning!

[@stewartfrye]

Nice video presentation as well as technical work being done, Two worlds collide with your video, as always very good

[@jerryglenn7323]

Chris, extra blank? Sure had to take a lot off. Great work.🍺🍺🍺🍺🍺🍺

[@davidgolden6068]

That raw forging actually looked pretty on point to me. Impressed with whoever made it to begin with

[@ChrisMaj]

Yeah, they did decent job.

[@icefishing4046]

Thanks for doing your job, Einstein

[@bostedtap8399]

Not to bad of a forging, great turning as always. Thanks for sharing.

[@NickShurer]

Impressive work as always. Definitely enjoyed seeing a little bit of the programming side in this video too.

[@joandar1]

Great work and Video. I am also very happy you said, we do not have the gear to machine the teeth. Not because I do not want you to have the machinery! As the part took shape was thinking this has to be a gear or pinion of some sort. Big thumbs up! John, Australia.

[@dozer1642]

Man, those cuts were amazing.

[@userwl2850]

Well Chris... it seems that CNMG tool is your favourite where it is my least favourite... I must be doing something wrong. I think it has something to do with you have a fantastic lathe. Try it on an old and worn lathe and I absolutely guarantee it would pull in. Best Turner on KZbin without doubt. Brilliant work. 👏🏻👏🏻👏🏻👍

[@henry67278]

I have never seen a center chuck, verry nice.

[@arielasub7840]

Хорошая работа, как программиста!

[@user-yv9yq6dn2q]

Хорошечно) Всегда приятно смотреть на работу мастера 👍👍👍)

[@ChrisMaj]

Я все еще далек от мастера.

[@user-nh9eu9um2d]

This machine make is korea company. Good job

[@crazycooterMN]

Pretty cool to see that negative geometry tool turning!

[@Jasondr13]

Nice video ! I miss this kinda work i now only make flanges from diameter 200 to 1000 nothing more 😬

[@MR-yq5rj]

Nice work ! I like it when you explain some small things. Stil learning 😀

[@HungNguyen-ol5oj]

Xem chế tạo máy tiện mê ni ÷máy khoan cây tự chế

[@theessexhunter1305]

A lot of dims to keep control of, v nice work. Merry Xmas from the UK

[@jdmccorful]

Wonderful "widget" work.

[@chamseaddine1152]

Good job 👏

[@Milling_Usa]

Fantastic

[@erwe1054]

Nice cnc fillet

[@gaetanbellavia8702]

Mécanique de précision

[@Masso1973]

Super

[@rodrigomolina5475]

Exelente trabajo amigo chris y muy bonito vídeo saludos de Torreón coahuila mexico 😅👍🏾

[@ChrisMaj]

Bueno gracias señor.

[@latheengineering3337]

This sound make me fell better

[@erhamed6003]

Good job

[@svogender]

But that smoke..!! Hope you have good ventilation..!!!

[@alaasha3ban699]

Very good But ..can I suggest remove the outer forged layer for big diameter to avoid Centrifugal force with high speed in roughing for small diameter..😊😊 Pls ...keep sharing to amazing us Salute from Egypt 🇪🇬👏

[@michajasina7418]

Jedno co bym chciał mieć to taki sam statyw do czujnika zegarowego zajebisty pozdro Michł

[@ChrisMaj]

Ja przeze lata miałem smaka na ten statyw, ale widział się trochę za drogi.

[@michajasina7418]

@@ChrisMaj jakiej to produkcji ,nawet go nie pokazuj bo podnosi mi ciśnienie .. a ja.😁😁😁

[@ChrisMaj]

@@michajasina7418 Noga MA61003 Big Boy

[@user-vl4kh6wh6t]

👍

[@ToolMan128]

Nice work :).

[@ChrisMaj]

Dzięki, no staram się.

[@ophirb25]

You can make music with this lathe...😀

[@1530f]

I run a Romi M-27 with that same Fanuc 21iT control!

[@josephpatchin3473]

Same here. Had the long bed version, 120in between centers.

[@clodoaldoalexandre8238]

A responsa, é fazer um desse só no anel graduado!

[@danielsousariassouzadias9788]

Braz torno 50 anos em tornearia super pesada & ferramentaria .

[@MaximumDistortion2]

Hi Chris, I have one question: How do you make sure, that you tighten the jaws evenly so the radial pressure on center in the chuck isnt to high? You just tighten it by feeling?

[@10Mbowman]

i was gonna ask that haha!

[@ChrisMaj]

That's why you use your indicator so you don't over tighten the jaws. You hit that "0" on your indicator you know you're not moving your center to one side.

[@MaximumDistortion2]

@@ChrisMaj Ah, exactly what I would have tried. But i wasnt sure if the movement is enough so you can see any deviation on the indicator.

[@adrianjackman9422]

@@ChrisMaj I would love to see this shown as I am also struggling to understand how you tighten the jaws without moving the part. Really enjoy these videos where you can see craftsmen at work and learn how and why they do things.

[@MaximumDistortion2]

@@ChrisMaj By the way, you cant use your indicator in a normal way when youre setting up the rough workpiece with no real round surface. So what do you do instead? I would suggest putting the indicator with the base on the chuck and the needle next to the jaw, set the indicator to zero before any thightening and do the same thing with the other jaw which is shifted by 90 degrees to the first jaw and a second indicator. Then, gradually tighten the jaws so that the deviation on both indicators is negligible. But this is just what I would suggest- youre the expert on work like this, would like to hear what you do about this!

[@icwiz]

1:53 man those chips must hurt.

[@MrSaemichlaus]

Especially when they land on your fingers just right to grab and burn you while you're failing to shake them off without a helping hand :)

[@shawnhuk]

So, one of my bigger concerns with breaking into the CNC world was not only having to learn the machine and programming, but also getting exponentially better at cad/cam. I always wondered if the steps could be manually programmed in the machine itself. So, it seems, yes it can? My next big machine purchase will eventually be a CNC or teach lathe.

[@ChrisMaj]

Hey, you already know machining, all you have to do now is learn few G-codes and you're set. Someone mentioned in the comments that even Abom79 is getting into cnc.

[@jani73]

Once I turned casted or forged raw shaft only from outside, didn’t do anything to length. But that outside roughing did something weird. The length of the shaft shortened as a result.

[@ChrisMaj]

We don't really do any crazy tolerances here.

[@MJ-iy4fb]

how long does something like this take to turn ?

[@GpunktHartman]

I allways cut the rought layer first, to remove the unbalance, so then use more Speed ...

[@policebox1092]

Good

[@snowman7672]

Im still trying to figure out how you center drilled it for the centers, no pre turn with center drill? Impressive

[@ChrisMaj]

The centers were done on a horizontal boring mill and I'm working between centers, so no pre turn needed.

[@snowman7672]

@@ChrisMaj 👍

[@pluscabsnagpur7399]

Which grade material was cut & which grade cutting tool is used for this job

[@ulrichherrmann6787]

Roughing is done with a 15 degree roughing steel In addition, first turn the outside completely, the crust has to come down. Schruppen macht man mit einem Schruppstahl 15 grad Ausserdem erstmal aussen kpl überdrehen, die Kruste muss runter.

[@wheelitzr2]

Oh my God that thumb!!! Man that looks like it hurt!

[@ChrisMaj]

Ha good eye. Yeah, it hurt like a mother 🤬 occupational risk.

[@craignicholson505]

Stunning job as always 👏 Is the spur gear getting set on or cut into it ?

[@ChrisMaj]

This is actually for gear company and they will cut into the largest diameter.

[@craignicholson505]

@@ChrisMaj thanks Chris 😊

[@Me_adimanav]

Hello, just curious how do you get perfect centre on the job for tail stock centre drill? Do you use traditional method like scale and marker or any type of mechanical drill is there?

[@ChrisMaj]

All done on a horizontal boring mill.

[@erdalefe7087]

Usta kolay gelsin tezgahın devri kaç işlerken malzemeyi

[@BigSkyCurmudgeon]

tool singing! rigidity problem as in too small of tailstock spindle or tool not set at correct heighth?

[@localele1]

Who puts the original centres in for you and on what machine? Are they done on a horizontal borer?

[@ChrisMaj]

Yeah, horizontal boring mill.

[@adrianjackman9422]

I have only done a small amount of turning and nothing of that size or quality but two things surprise me. Firstly why you don't rough out more before finishing anything to improve balance and possible movement and secondly how you tighten a four jaw chuck but leave the centre as the primary location. Always interested to learn more from craftsmen.

[@ChrisMaj]

As you can see in the video my roughing was done to +0.200" then semi-finish +0.060" and finish.

[@adrianjackman9422]

@@ChrisMaj Thanks for the reply. I meant more roughing down the outer forging to balance the part. Still cannot figure out how the center overrides the four jaws. Always keen to learn how and why things are done.

[@diditwork370]

The jaws are really just there to spin the thing. You could hold it between centers but then how do you start and stop the part turning?

[@adrianjackman9422]

@@diditwork370 Thanks for the reply, I have seen turning done between centres before but that has always been driven by a drive dog rather than the jaws. I know when getting something to run true in four jaws it is easy to move the part a fair few thou even when they are fairly tight by adding more pressure. I would have thought that would override the centre?

[@diditwork370]

@@adrianjackman9422 You literally put an indicator on the part and don't over tighten. All part of setting up a lathe.

[@dawszelka5461]

Hi Chris can u tell us how much hours you machining products like these and if u are able weight loss from that machining in your videos? I am Just curious about that. Anyway you are master of lathe :) i love lathes and very like your videos :)

[@ChrisMaj]

It took about 11 hours start to finish. I'm not sure about the finished weight.

[@eviethekiwi7178]

This looks like quite an expensive part, i don’t think i could handle the responsibility of machining it! What sort of previous experience do you have? And how did you get to do this sort of job? - regards, a first year apprentice :P

[@ChrisMaj]

It all started in trade school, all manual machines, then I moved to US. Few years later got a job in this repair machine shop. I've been here almost 24 years, I know someone will say how can you work in the same place for that long, but it's alright something different every day.

[@nabilelbadri7686]

Nice job Chris , is the hankook OCTG lathe?

[@ChrisMaj]

This lathe does have a 10.00" bore through the spindle but we are not in the oil industry if that's what you asking.

[@user-qh7rl3us4n]

@@ChrisMaj дк6

[@ry-rn5st]

Looks like you did 6 ops. in the lathe. 3 for each end. Couldn't you just do it in 4 or does the material move around that much?

[@ChrisMaj]

I was always though, if you're removing a lot of material do rough, semi-finish and then finish. It only takes little bit more time and you get better results especially on large parts.

[@ry-rn5st]

@@ChrisMaj I guess it is better to be safe, especially with larger parts. Very nice work.

[@artur9229]

Why so low on coolant? Asking cause I'm curious and new to the topic

[@ChrisMaj]

Just for video purposes so I don't get my camera wet.

[@connorrosekrans7348]

Ronnie Coleman squat bar

[@danielsousariassouzadias9788]

Tornear primeiros os diametros.maiores deichando 3.mm de sobre metal retificar o centro e daracabamento

[@rishiemansingh2276]

Great job sir.i enjoy looking at your videos.can u please tell what type and grade of inserts u used . Than you

[@ChrisMaj]

Roughing insert CNMG KENNAMETAL K313 , finishing insert VNMG KORLOY NC3030.

[@6AL-4V]

Chris, that Kennametal CNMG is not an uncoated K313 grade. It is definitely coated. You should try a RN chip breaker with a KCP25B coating.

[@rishiemansingh2276]

Hi Chris . Have you ever tried Tmx pc 5300 inserts , they work really well also.

[@ChrisMaj]

@@rishiemansingh2276 The thing with the place that I work at is that they have a guy that buys inserts at auctions and whatever they can get for good price they will get it and hope it's good.

[@rishiemansingh2276]

Hi Chris I'm sorry if I offend you in any way.i do apologise

[@Minhnhut23299]

Đỉnh quá a ơi.m.n tiện tay sẵn ghé. follow ủng hộ kênh e nhé❤️❤️👏👏

[@VishalYadav-ew5ee]

How to take offset roll

[@keithgutshall9559]

Will you have to turn in it after they job the teeth in it?

[@ChrisMaj]

I left stock for grinding on the critical diameters.

[@jimsvideos7201]

If you don't mind my asking how long did this take?

[@ChrisMaj]

Around 11 hours.

[@jimsvideos7201]

@@ChrisMaj Ok right on, thank you. It's a fascinating process.

[@eddiekulp1241]

Said did everything between centers? It's in a 4 jaw chuck

[@ChrisMaj]

0:02 in case you missed it.

[@kingsparkdrift]

why did you use little oil and far away from the tool?

[@ChrisMaj]

Just for video purposes.

[@juancatalan631]

Cuantas horas de trabajo hay en este proceso terminado????

[@ChrisMaj]

Si mal no recuerdo, tomó alrededor de 11 horas.

[@dtiydr]

12:16 It looks like you might have programmed that once or twice before.

[@ChrisMaj]

Haha yeah. I've been running this lathe for the past 15 years +/-

[@dtiydr]

@@ChrisMaj Cool! :)

[@user-du8cu6qw5w]

А чего бы сразу не использовать трехкулачковый патрон?

[@mikemaier1369]

Which kind of material is that?

[@ChrisMaj]

0:08

[@damianxmikox]

Ile godzin obróbki ?

[@ChrisMaj]

Dokładnie nie pamiętam bo to była jedna sztuka, programowanie, po obróbce zgrubnej siedział na ziemi kilka dni bo była inna robota. Całość koło 11 godzin.

[@dtiydr]

Had to cost a pretty penny to make.

[@ChrisMaj]

I just work here, so I don't really get into the financial department.

[@dtiydr]

@@ChrisMaj You should be happy that you don't because if you would know what the customer had to pay for this you wouldn't dare making it. :)

[@mirkohrsak5509]

Ja, dreht ziemlich gut aber kuhlmittel zu wenig.

[@ChrisMaj]

Ja, es gibt Kühlmittel. Ich versuche nur, es während der Aufnahme nicht zu verwenden, damit meine Kamera nicht nass wird.

[@lucianotognelli192]

too much waste of metal ; wrong forging

[@robertriquelmy7193]

Repetitious