Cnc Turning 11" Dia. 120 inch long Rollers / Rough / Finish. Tokarka CNC

Hankook Protec 9-NC turning operations start to finish.

[@Designsbyg]

you are a real inspiration. I have a small lathe, and watching you go at it makes me want to create something. I learn a lot watching your vids. I did CNC (wood router) for 23 years, running a cnc lathe has always been my dream. bravo.

[@ChrisMaj]

It's not really a learning channel, but thank you.

[@El_Chamuco_Veloz]

This guy is the new kid in town. 👌🏼👏🏼👌🏼👏🏼👌🏼👏🏼👌🏼

[@ChrisMaj]

Haha, thanks mate 👍

[@andrewstoll4548]

Ever since Abom79 opened his own shop it's nice to see big steel being worked on again.

[@ChrisMaj]

I used to watch his videos, but he's more of a manual machines guy.

[@karstenchristensen2246]

@@ChrisMaj he is also turned into a travelguide instead of a machinist guy. I loved his old videos, but the new ones are boring as hell.

[@ChrisMaj]

@@karstenchristensen2246 Yeah I hear you.

[@zixxatroll4902]

@@ChrisMaj don't get me wrong, I'm glad he is learning new stuff like heat treating and what not but sometimes you wanna sit down and watch some heavy cuts being taken

[@macphestozoo3885]

Very true ... when he worked on the big stuff it was very cool. But one day I swear he just spray canned a cabinet one day for one of his videos. That’s the day i realize it was time to move on.

[@fubartotale3389]

Spent my career looking to make smaller and smaller more precise parts, ended up as a grinder hand making laminate and connector mold inserts. A part 1/3rd the size of a pencil would have been considered huge, and + -.0002 would have been considered an open tolerance. I'll be seeing this in my nightmares tonight.

[@drflfonseca]

Awesome! Good job my friend!

[@guypatts494]

Beautiful work

[@sunderpujari9523]

It's fantastic.

[@heir6289]

powerful and rigid machine, and skilled operator using the machine to maximum efficiency - a thing of beauty!

[@andrewtaylor5962]

Don’t agree I could take about 50% out of that job quite easily from what I see

[@heir6289]

@@andrewtaylor5962 I don't see any details as to how you would achieve this or where this process is inefficient on this machine. Please enlighten us.

[@andrewtaylor5962]

@@heir6289 surface speed could be increased as its on the low side if its mild steel, change roughing insert for an edge saver, which will allow to increase depth of cut

[@heir6289]

@@andrewtaylor5962 Is it mild steel? Can you tell the surface speed from this video? I admit I have no idea what an edge saver is but it seems to me they have the material chipping nicely for each cut depth we see here. The main roughing uses most of the insert cutting edge so if there are two roughing passes you would need to double this depth in order to get your 50% reduction in time. I'd say these people know their job very well. I'd still be interested in knowing what an edge saver is though - maybe it's called something else here (Australia).

[@ChrisMaj]

@@andrewtaylor5962 It's 4150 Q&T at around 320 Brinell. You do realize this thing weighs 3000 lbs (1360 kg) and I don't know about you, but at this weight I like to keep my rpms on the lower end and this lathe only has 600 rpm max, so you can't really go crazy. The DOC is 0.350" (8.89mm) FEED 0.020 IPR (0.508 mm/rev). You said you could cut about 50% man, I'm listening.

[@pablotorres2749]

Awesome job, we use to make printers rollers very often, most of them with a rubber layer on the surface, but instead of using a solid steel bar we use a hollow bar.

[@geoffgreenhalgh3553]

Tube I used to make them, they were known as rolls.

[@bravebeard6225]

We swapped to plugging and machining pipes too, way lighter and cost effective.

[@fokusano]

2:00 klucz dynamometryczny typu "rura" :D tez taki mam :D Good Job, Pozdrawiam :)

[@eleuteriotarrega3661]

Que maravilha , isso é o máximo

[@staceybrown2172]

I'm still trying to figure out how it's turning so true with pre-drilled center holes. At first I thought you'd run it thru the spindle to finish the opposite end but was surprised to see it finished all that way opposite of the chuck, especially without a steady rest. Impressive stuff dude.

[@ChrisMaj]

You can't see it on a video, but I did flipped that part four times and turning between two centers also helps.

[@jackdawg4579]

you have got to respect the bearings in those tailstocks, all that load on the tiny little live centre cantilevered out from the base.

[@ChrisMaj]

Yeah, we just recently replaced the bearings first time in like 15 years.

[@williamhoward8319]

darn straight billits for forging

[@tomharrell1954]

I don’t know diddly about this, but it looks like those spindles are too small for that piece. Great video!!!! I wonder why it’s satisfying to watch a piece of rusty metal being turned into a shiny piece of metal being made to do stuff.

[@GD-cs4nh]

Could you expect any runout from not supporting it in the middle?

[@easyboy1950]

How did yo7u put the center hole in the shaft? Did you do it by hand or on a horizontal boring mill? Great videos by the way. Just liked and subscribed.

[@ChrisMaj]

All done on a horizontal boring mill.

[@SuperItaliano83]

Detal sam w sobie prosty w wykonaniu, gabaryty jednak robią wrażenie. Robię podobne wały w pracy, tylko o średnicy zaledwie 60mm.

[@duckslayer11000]

That was some impressive crane operation!

[@ChrisMaj]

Twenty years of experience 😉

[@Thebalkan84]

@@ChrisMaj Why doesn't it vibrate during turnin? 😥😥 Tell me your secret 😂

[@ChrisMaj]

@@Thebalkan84 Rigid machine, right tools?

[@ChrisMaj]

@@Thebalkan84 I don't know what kind of lathe you have, but sometimes just getting a different live center can help a lot. I really like Skoda live centers, they worked better for me than the Royal or Riten live centers.

[@alisolhandish7079]

@@ChrisMaj hi.l love this job.this is my job.cnc programer.thank you for video 👍

[@semperfidelis8386]

If you're running NC with a manual toolpost, don't you have to touch the tool on the post? How can you take NC to a finish dimension with a tool that hasn't made a cut yet?

[@user-kq4xc4bg9c]

Good stick :)))))))

[@andrewstoll4548]

Was there an indicator used to help mount the work piece in the chuck??? Always like to see that.

[@ChrisMaj]

Yeah that's the first thing I do, check the runout before I do anything else.

[@chuckyare]

You can show how you make the center mark before turning

[@johnwhauserman]

They look like the rollers I made for the steel rolling mills in Cleveland, Ohio.

[@ChrisMaj]

I know they are used in steel rolling mills, but where they go I have no idea.

[@morrisgray6703]

Some of the sounds coming from the machine could be used in horror movie kill scenes. Lol. Really eerie.

[@gregoriowoland9105]

У меня на балконе такой же стоит, я на нем по выходным винтики м3 точу двухметровые.

[@Darien_Lambert]

Без люнета☺️

[@ryanb1874]

How do you get a good final finish, if at these dimensions, its like a bendy, stringy noodle?

[@LordOfChaos.x]

High RPM Slow feedrate

[@nblax41]

How do you check the threads on these? Wires or a thread mic?

[@ChrisMaj]

I only use wires.

[@FastSloW-qt8xf]

I guess you turn over alot of these to have it programmed for cnc.. im just a hobbiest with asian manual machines. Dont make much more than occasional beer money.. would like to learn how to program though

[@Spark-Hole]

Would it be more precision, should you turn between center ( not using a chuck)....I am just an armature.

[@ChrisMaj]

There is a center in the spindle, but when you take big cuts you have to have a good grip on your part.

[@marciooliveira3154]

Chik!!!!!!!

[@mehmettemel8725]

Chris everything looked ok until I saw you facing the end using a triangular insert creating birds nest.I would normally machine from small end to big end and finish at the chamfer since the barrel was already finished unless you have a valid reason.Otherwise a nice job.

[@ChrisMaj]

I do it both ways, but you do get better finish going backwards (large diameter to small diameter)

[@liuxin802046]

question: how did you make sure the centre drill is true to spindle?

[@ChrisMaj]

I also have a center in the spindle , so basically working between two centers.

[@liuxin802046]

@@ChrisMaj so you have two centres at both ends. Then how to make sure the two centres at both ends ligns up?

[@liuxin802046]

@@ChrisMaj so when you drill the two centres at both ends, how to make sure they align. Thanks

[@1985mgraber]

How do you face off for the overall length?

[@ChrisMaj]

It was done on a horizontal boring mill

[@1985mgraber]

@@ChrisMaj awesome work man. I've never done big work like that, almost a foreign world. So, you take the stock to the boring mill, face it off there and put the center in. Then turn what you can, then back to the boring mill for the bolt holes on the recessed face?

[@user-nd9cn4lg3r]

fanuc 21i -tb 매뉴얼 좀 구했으면 좋겠내요 (korean 버전) ㅎㅎㅎㅎ

[@ManjitSingh-vw2qy]

This is very easy job.

[@ChrisMaj]

Where does it say that it's complicated?

[@LordOfChaos.x]

Where does it say it's easy?? Do it yourself then we talk later This job has lots of responsibilities and there is no place for failure

[@NoOne-me3je]

Praise the Lord

[@teemuronkainen]

How did you do those center drills?

[@ChrisMaj]

On a horizontal boring mill

[@michaeldevore6575]

Was this turned to a finish size or ground to size. Thanks

[@ChrisMaj]

All turned to finish sizes.

[@machineman7806]

@@ChrisMaj What tolerences were needed

[@ChrisMaj]

@@machineman7806 within +/- 0.001

[@Trendyrapslut]

@@ChrisMaj how does something like this get away without a rest?

[@ChrisMaj]

@@Trendyrapslut If by rest you mean the time between rough and finish, then yes there was a rest just not on the video.

[@exsoldier2012]

wrzuc jeszcze jakies filmiki dzieki

[@joaobastistafereira45]

show

[@trisfertigaus7610]

did u machine that in 15min?

[@ChrisMaj]

More like three days.

[@trisfertigaus7610]

@@ChrisMaj lol thanks for reply . is it even possible to fininsh one part with one insert ? What precision is needed for such parts ?( tolerances ). how u know that part is well centered in that chuck? looks like fun job :)

[@ChrisMaj]

@@trisfertigaus7610 You're gonna need more than one insert . The tolerances are within 0.002" and I use the dial indicator to check the runout.

[@richardhead8264]

_Hi Chris, do you know what these rollers are used for?_

[@camilolorenzini6666]

Aço 4340 ?

[@ChrisMaj]

4150

[@user-nd9cn4lg3r]

저게 우리나라꺼 였네 Hankook

[@ChrisMaj]

Yes made in Korea.

[@cristiancavicchi1347]

2018?? 1980

[@ChrisMaj]

I'm not sure what 2018 / 1980 means. Is it a material type / grade?

[@florianlefebvre2568]

Hello chris , how you do your center before turning ? thank you

[@ChrisMaj]

We put them on a horizontal boring mill with turn table.

[@florianlefebvre2568]

@@ChrisMaj ok thanks chris , can i have a picture of the mill ?

[@ChrisMaj]

@@florianlefebvre2568 i.imgur.com/XAiFYZY.jpg

[@ChrisMaj]

@@florianlefebvre2568 i.imgur.com/t7jIxUj.jpg

[@MsALDARI]

REALY SPID BEK IGO BEAFOR ME TBIRIN

[@user-nd9cn4lg3r]

멋있는데 mastercam2018/NX 11.0/Fusion 360/auto cad

[@ChrisMaj]

I only use MANUAL GUIDE conversational programming platform that makes it easy to perform create part programs right on the shop floor.

[@MarioHernandez-zq1xe]

Hola que material husan 1045 o 4140 lo normalizan,templado o comentado gracias me responden por favor

[@ak-xd1pt]

Program at controller Mazatrol m etc. This is not cad cam mastercam etc

[@wendull811]

Your hankook is tiny. We have the same machine but can run 310 inch long parts in it.

[@ChrisMaj]

Then it's not tiny, it's just 4 meters shorter than yours.

[@wendull811]

your is still a big machine. I wish I could tape stuff at my job but I would lose my job if I did.

[@exsoldier2012]

hi have you got facebook i have few question

[@ChrisMaj]

marcin zakowiec what do you need to know?

[@exsoldier2012]

Chris Maj I am starting work on hankook protection 9n fanuc control 15t do you know this model

[@ChrisMaj]

marcin zakowiec I used to work on fanuc 20-T not 15-T . You need to know about programming?

[@exsoldier2012]

Chris Maj programming setting because I worked before on doosan puma and smallest

[@ChrisMaj]

marcin zakowiec are you Polish by any chance?

[@timhofstetter5654]

It's not clear that's actually a CNC lathe / turning center. Pretty doubtful. If it is, then it's a fabuous waste of CNC because the same job could be done so easily with a manual machine. There's no good justification for using CNC for simple stuff that can be so easily jigged and done by hand.

[@ChrisMaj]

0:35, 3:23 if that's not clear I don't think I want to argue with you. By the way, we only have couple manual machines, large lathe and a vtl. So I'm using what I got.

[@timhofstetter5654]

@@ChrisMaj I see nothing telling at 0:35. I see a big DRO at 3:23. I see a giant manual lathe that may or may not have been "CNCized" but that (if it has been) could easily be operated manually, as it was designed to be operated when it was built. Me, I believe I'd decommission the CNCization if it's been done and set it up to use jigs instead. It's just so much simpler and doing so costs nothing. But that's me. Maybe you have something more profitable to do with your time.

[@planje4740]

- also some my own profession I'M Lovin it in reality ~ tolerance imagine something 220 mm +0.001/ 0.015 ~ but no CNC conventional ~ overwork how much you want ~ nice company but cause of some geert wilders gedue /just hate against foreigners - get other job from whom I are sick long terms I have fired company _ do I Known name of chiefs SURE - have nothing to say about them want not them see _ in reality not so sure about - or it are Filip Dewinter and the Vlaams Blok or about Geert Wilders Partij voor de Vrijheid - oh no is just hate against others - what a boys clever truly one but in carton movies near sponge bob _ - selected hate (I`m married from do not matter what I hate all except her folk) I also goes be married from country Chad I hate all except her folk _ boy where you talking about here are you maybe mad - seems to me you are only in school on pauses because it does shown nothing else _ whom school have to both of your give diploma - is that valid in this world or where is about _ where is some law about - you can talking what ever you want but for hate or awake hate or upset others to hate - always arrested is not democracy is nonsense _ so boys do you see what would be happens with yours If I`m are chief - prison no excuse possible - but first some notation about stop it change way are you Christians or idiots (you here do not represent Christianity on no way maybe you have only claim about) _ there is some issue with asylum's but not because they or they but because no money for them 5000 times 300 000 euro is a lot in one year whom we have not - and never more talking something else job done closed case about for super long period - is not point whom is about no resources _ stop talking nonsense - you do not have anyone year money for 5000 new apartments - of is there some mikheil saakashvili or someone from do not matter where _ I`m now happy with existing company is out my range or profession - but whole day fun (anyone make some jokes whole day) - working and happy - we known whom is chiefs but they also made jokes