Worked in a shop where the owner said "if the customer supplies the material the price get doubled". What a PIA!

@ChrisMaj

Жыл бұрын

I have no idea how they quote jobs like this. .

@sicstar

Жыл бұрын

@@ChrisMaj if you didn't tell em what hassle it was and that you went trough more inserts then usual they probably don't give a damn. Often enough the customer is telling some BS too and the guys in the office rarley come to ever check something on their own. Except its taking forever. My experience at least.

@ChrisMaj

Жыл бұрын

@@sicstar it's a small shop. Everyone knows what's going on around.

@sicstar

Жыл бұрын

@@ChrisMaj Ah nice, then the overhead is usually still okay and your guys know about whats going on. I already had some nice things where a customer supplied us with mistery "stainless" ... turned out to be inconel625, unlabeled material and i was like what in the freaking hell i have on the machine now and it took 2 hours and 3 phonecalls to even get that information out of somebody. Totally annoying -_-

@DubsnSubsSessions

9 ай бұрын

The extra hours over what was quoted on this would go down as 'non conforming material' or something at my place and the customer would pay for it. The office cant quote for misalignment. We get castings that're all over the place, sometimes with a lot of excess in places it should be, turns a 60 hour job into 80 so that goes down as extra.

Turning runout is so satisfying

@irishwristwatch2487

Жыл бұрын

Especially on large diameter parts. That *shing shing bong bong* gets hypnotic after a bit

Oh how I feel your pain, it's like "Customer supplied pattern" in the foundry... 🤐

@ChrisMaj

Жыл бұрын

The things that could have been made from this beautiful 4340 material instead of chips 😅

@lancer2204

Жыл бұрын

@@ChrisMaj so much lost material

@MrKotBonifacy

Жыл бұрын

@@lancer2204 I guess those pieces were some "leftover" from another project or just botched products, and the customer had the choice either to "scrap it and buy new material" or "pay more for the man-hours and save on material" - and it just worked out that the second option was more economic for him after all. Dunno, but there has to be some reason behind it - although I have no idea how labour cost here stacks against material cost. "Whoy knows" as they say here... ;-)

Nice work Chris. Loved the slow-mo on the interrupted cuts.

@ChrisMaj

Жыл бұрын

The job was boring, I had to make the video somewhat interesting 😅

wonderful video and a good lesson about teaching customers the best way of doing the job....

@ChrisMaj

Жыл бұрын

There's always that one customer. I guess he's paying good cause this is not his first job.

It might have been easier to bore out the center hole first to cure the massive runout, but then you'd need a bullnose live center in the tailstock. You got some beautiful end results, though.

Gday Chris, you weren’t wrong when you said there was plenty of turning, big job mate, cheers

@ChrisMaj

Жыл бұрын

Sometimes, I think I would be better off getting paid for all the pounds of chips I make .

@redryderaus

8 ай бұрын

@@ChrisMaj ROFL 🤣

Man, watching that interrupted cut makes me think of butter bot. "What is my purpose? Making parts?" "No, you intermittently hog out material" "... Oh my God"

@Donkusdelux

Жыл бұрын

yea, welcome to the club pal

Outstanding and impressive work of art, at my 71 years of age I still enjoy every second of it, most kind of you for sharing it with us, from the endless summer paradise Puerto Rico Jesus Torres.

@ChrisMaj

Жыл бұрын

Thank you, glad you like it.

@JesusTorres-qr1gz

Жыл бұрын

@@ChrisMaj most kind of you gentleman, thanks, from the endless summer paradise Puerto Rico Jesus Torres.

Customer supplied material is always fun especially when it´s some piece of "Mystery steel"

@sicstar

Жыл бұрын

when the C45 on the drawing turns out to be something in the ballpark of 1.8550+QT :D Or they send you "Stainless" and it turns out to be Inconel 625 ..i.. :D ... been there done that.

@jimsvideos7201

Жыл бұрын

Charge them enough to pay for a PMI gun and some training 😅

@sicstar

Жыл бұрын

@@jimsvideos7201 excellent idea actually! :D

Lovely piece of turning 👌 thanks for sharing 👍

Man that flat spot! No fun. But that VTL boring bar extension was very cool to see.

Don't act like you don't love plowing through steel with a gnarly interrupted cut 😂

Beautiful Machine Work!

As always, great video👍😊

4340 is tough stuff. Especially with interrupted cuts. I’ve found Sumitomo CNMM###ENP AC6040P inserts work well for roughing. I do a lot of aerospace 4340M and 300M very interrupted cuts.

@leonardfischer8083

11 ай бұрын

Tough stuff ? We machine 1.4468 and 1.4501

Very impressed!

without a doubt, what a great job!

You do nice work.

Nice work as always sir

I had a home gamer job making some pins for hydraulic equipment. Customer supplied material, which turned out to be 4140 hard chromed + induction hardened bar, salvaged from old hydraulic rods (he rebuilds the machines). The cost of the CBN inserts I used up getting through that induction hardening would have paid for fresh stock. And my God, the amount of chrome dust I had to clean off my lathe bed was a nightmare...

9:30 thank you for being ahead of my intusive thoughts 😂 everytime I see it Im like "Danger spaghetti" and I wanna touch it. I dont, because I like all my fingers, but Id be lying if I said I wasnt tempted!

Втулки просто 🔥👏👏

BIG VTL secretly identifies as ISO50 mill ;-D

Nice video, thank you 😊

Great job as usual Chris!! But I suspect that you were(possibly still are) pissed off at the waste of time money and energy it took to get those made. As well as being bored out of your head by the repetitiveness of endless cuts for something essentially so simple….. Lovely watching you work buddy 👍

@ChrisMaj

Жыл бұрын

Good thing I get paid per hour 😅

yeah I love those jobs man, chips on end and all you gotta do is watch and wait and drink coffee... best life :D

I feel your pain Chris, BTDT - more times than I care to remember.

Mate should be thankful the customer supplied blanks didnt come already hardened. Gotta love customers! :D

Ouch!, customer thought I'll get rid of those big rounds, whats hollow bar? Great job as always Chris. Thanks for sharing

Our shop loves to give you the smallest amount of material so you have to do funky setups in the mill😅

@shawnhuk

Жыл бұрын

Uhhg…. I hate trying to grip material in the lathe by only .150”…

@sicstar

Жыл бұрын

maybe they should start shaving off money where there is too much already anyways? :3 (usually in the office)

@ChrisMaj

Жыл бұрын

Sometimes, if they just got you that extra 1/4" it would make your job a lot easier.

@weyers17

Жыл бұрын

@@sicstar got that right. So much overhead on the management side of things.

Good job Chris, hey did you hook up an air line at the spindle bore rear? Looks like and sounds like it. I have done the same and the air pressure blows the chips back into the machine conveyor. Then once you have your shoulder in the bore you can run the coolant and it will flush chips out normally.

lovely..thankhyou share

Too bad you couldn't tell them that company policy for supplied material was that they have to shovel the chips because the conveyor's busted. Also that stringy bastard at 9:50 or so is meaner-looking than razor wire. 😯

The zoom in on the clearance lmao

Whatever they saved in material costs probably cost them in labour. At least you still get paid!

I start my new job at a heavy forge shop in two weeks. Lathe work and vbms. All material made in house.

Oh wow, those got HT real hard. Do you guys run any trepan tools at your shop? A British bloke had a YT channel with tons of trepanning in exotic matl using homemade tools, until the Brexit they wanted put the shop under. It was an excellent channel.

@ehamster

Жыл бұрын

Dave sold a trepanning tool to Chris. Brexit was nothing to do with his shop closing.

@pcka12

Жыл бұрын

His wife was terrified of him running a one man shop (he was a fan of Charles Darwin so was well up on ecological niches). The EU is without question something of a 'protection racket' you should talk to the inhabitants of a few North African nations about being on the receiving end of it with their fragile economies!

@MrKotBonifacy

Жыл бұрын

If you're talking about David Wilks and Tooltek then he closed his shop in 2020: "Closed down after 30 years. life goes on. Tooltek finished", kzread.info/dash/bejne/enug2KeCpsS1eLw.html Seems to me that trepanning is so "out of the line" of any regular machining shop that it's just not worth keeping the tools and all for once in a blue moon job - and that's why there were shops like Tooltek, doing only that. If you have jobs like this one here just hog out the material, charge the customer and that's it - till the next time.

@SR-ml4dn

Жыл бұрын

Love to see David Wilks make the most insane difficult trepanning jobs 3 to 4 meters deep with in tight tolerances. His calm voice and special English accent. Some times the cutout material core from expensive materials can pay the trepanning tool price. There are some of the shelf tools for that diameter but properly not able to cut in that debt we could see here. I've used one of the shelf tool for material thickness of 60 mm from either Iscar or Sandvik.

@ChrisMaj

Жыл бұрын

No, we don't have any trepanning tools. Yeah, David had a really good channel.

i like the way the lathe changes speeds depending on the diameter. mine doesn't do that.

We don't need processing fees for car sales processing, we just need to leave the scrap iron.

I prefer y customer supplies the material, it improves my cashflow when I don’t have to pay for something 30-60 days before I get paid... if they want to waste money let them, as long as you’re getting paid for removing it all, it doesn’t matter.

I see a shaft sleeve that could be from a pump, already treated, the only thing is that sometimes they get deformed.

All that rough machine work. Got a good forge shop in the area? Could they have reforged the material into a sleeve? Would it have paid? Would have saved about 4/5 the material cost - although that did look like salvaged shafting.

Man that takes the cake for the shittiest blueprint ever lol, okay maybe not the worst but definitely a weird one for me.

I had to stop the video to see which machine was squeeking great content as normal Chris

Замечательно! А можно узнать сколько оборотов и подачу до и после закалки?

Okay i bite: why switch to the VTL? Single pass boring?

@ChrisMaj

Жыл бұрын

I don't have a boring bar long enough for my lathe.

Anytime a customer wants to supply material for me, I ask them exactly what dimensions the material is before I can quote it. If the customer can't or won't give me exact material dimensions, I will put it in writing that my quote is based on material being a specific size, any other material dimensions must be re-quoted.

Clearance is clearance 😂 13:02

So, which boss did you make mad enough to get all of the customer supplied stock jobs?

@irishwristwatch2487

Жыл бұрын

I get the feeling its his shop, so I imagine everyone else there refused 😂

@mrcamelpmw

Жыл бұрын

@@irishwristwatch2487 no, not his.

@ChrisMaj

Жыл бұрын

I get paid per hour, so I don't really care what they are doing in the office. As long as the chip conveyor is running, I'll fucken make chips all day 😅

@ChrisMaj

Жыл бұрын

​@IrishWristwatch I just punch in, make a ton of chips and punch out.

@robertoswalt319

Жыл бұрын

@@ChrisMaj I am there with you. I learned a long time ago that it doesn't really matter who your boss is and to fly under the radar, keep your nose clean, and do what you are supposed to be doing.

curious why you left so much on for machining after heat treat- does it really change that much (length 15.590 vs 15.501, OD 10.020 vs 9.917)?

After heat treatment why not grind the od and hone the Id instead of hard turning ? Awesome work none the less

@ChrisMaj

Жыл бұрын

There was still 0.100" stock on the OD and ID. Little too much for grinding.

Running this exact lathe, my biggest issue is chip control. If I can't MacGyver a aluminum sheet shield, it's just a mess all over. Any tips?

Alguna vez hicieron ese maquinado de bujes ó camisas de ese diametro en torno convencional sin utilizar insertos??

I am gonna guess is this "supplied" stock was something the customer had lying around.

Had a customer supplied used piece of tool steel material break in the lathe during machining; apparently was two pieces welded together… 🙄

Fantastic work Chris. Out of curiosity, what was the total weight of the material removed from these parts?

@ChrisMaj

Жыл бұрын

I have no idea.

@MrKotBonifacy

Жыл бұрын

You can work it out from initial dimensions of the workpieces and the finished items - density of steel is about 7.8-7.8 g/cm3, so when you substract the volume of finished piece from initial volume you can estimate it pretty close. Curtis from CEE asked his viewers, in the video in which he was making a toolpost for a lathe, what is the weight of the finished toolpost - and some people got it pretty much spot on. Here, kzread.info/dash/bejne/lmxo2ceNfaqdlc4.html

@geoffflato2094

2 ай бұрын

I used to do TONS of volumetric calculations, still have 0.283 pounds per cubic inch memorized. These days? Couldn't care enough to pay attention

I would like to think that this customer had these pieces "laying around" or obtained them at a tremendous discount from some other source. What a huge waste of material.

Le coût machine doit être important vu la matière enlevé d une part puis le durcissement d une autre part car les conditions de coupe ne sont pas les mêmes. Puis normalement il faut rajouter le coût matière et le coût humain.

That insert for hard turning looks like it works pretty well. How much were you taking off???

@ChrisMaj

Жыл бұрын

There was 0.050" per side, so I took two cuts.

Hey Chris, would trepanning these have been possible? It would save a lot of time and inserts.

@sicstar

Жыл бұрын

If you have the tooling for trepanning lying around and your machine is set up for it you defo have a point here. Also you get a nice free chunk of round stock then!

@ChrisMaj

Жыл бұрын

Don't have tools for that.

@sicstar

Жыл бұрын

@@ChrisMaj Making trepanning tools you need quit a bit of material, good one too or the corners where the inserts are mounted are going to break/wear trough pretty quickly. And it takes half a day usually. And the setup. Im no pro at it but imo its not very viable anymore nowadays except you want bonus material. Just cutting it away is way faster usually woth what inserts and stuff we have nowadays.

would be interesting to know the selling price of that job...

@sicstar

Жыл бұрын

i hope with that interrupted cut it's double what they usually pay lol

Customer supplied anything is automatically premium rate 😂😂😂

@ChrisMaj

Жыл бұрын

Well, I sure hope they did quote him accordingly.

@justinl.3587

Жыл бұрын

@@ChrisMaj Hopefully!

they find that material in the scrap bin?

@ChrisMaj

Жыл бұрын

Yeah, you buy one piece and get 2 for free 😅

How many pounds of chips are got on average in a week??

@ChrisMaj

Жыл бұрын

Well, that depends. One week I'll make 1 ton of chips and then I'll make a ton of chips in few hours.

Sometimes you just have to say " I think we may have a more economical approach " ................

You'd be learning the hard way if you did think about it 😂

you're doing this on an NC lathe?

@ChrisMaj

Жыл бұрын

Yes sir

I know that you are just a worker there but if I was the owner of the shop , I would just refuse this job. AND probably told the customer they should fire somebody , because they have idiots working for them...

@ChrisMaj

Жыл бұрын

Yeah, being a repair shop you get all kinds of crazy shit and that's where you make more money cause no one wants to do it. 😅

what is the story on half round boring bar?

@ChrisMaj

Жыл бұрын

We used to have this smaller lathe, and the boring bar wouldn't fit in the toolpost.

Sam wiercisz Otwór czy na wytaczarce ci przewiercają?

@ChrisMaj

Жыл бұрын

Wiercili na wytaczarce .

A tactic i found works really well for getting through that kind of interrupted cut is super deep DOC .003-5 feedrate. Not trying to tell you how to do it though, just something i found worked well on big stuff, cheers.

What about trepanning? Saves lots of material

@ChrisMaj

Жыл бұрын

It dose if you have the tools for it.

what are this parts going to be used for?

@ChrisMaj

Жыл бұрын

No idea

Pourquoi la première pièce est désaxée avec un plat en plus ??? C'est juste à cause du brut ??! 👍👍👍

Where are all these flawed forgings coming from?

@ChrisMaj

Жыл бұрын

Junk yard 😅

Had to remove like 90%.... no better solution for such parts? some sort of pipe or...? Had to be a day of roughing or something

Regularie, u should never use coolant when working with ceramic inserts. And often fullmaterial is much cheaper than pipe/tube. And easier and faster to get on the market . But good job anyway ☝️

Dimensions in inches? I thought you guys are from Europe

@TheMetalButcher

Жыл бұрын

He's Polish but works in the US from my understanding.

@ChrisMaj

Жыл бұрын

I work in the US

When customers ask me if they can supply the material I reply would you take a steak to a steakhouse

What a waste of material 🙂

@ChrisMaj

Жыл бұрын

Tell me about it 😅

Talking shit of customers is never a good thing....

Bore the hell out of this thing🤣

Psssh

Those pieces looked like scrap from a steel mill.

@ChrisMaj

Жыл бұрын

Knowing that customer, they probably are 😅

I think your statement isn’t totally accurate in the sense that all you have to do is discuss it beforehand with the client. In the spirit of them saving money (which is totally understandable) they may not think about your needs or even care about your expectations. But if you talk and if they trust you many times people will reason. Looking at this from what you’ve shown, I don’t see the issue. I was expecting to see square stock or scrap. Great work despite the challenges as usual.

I'm a german lathe operator and always wanted to work in an other country "not EU" cuz we don't have the same measurements, and we use CM. at the start of this video i was more than confused with all the 3/16" or 10 7/8" i know i would be lost AF xd

@ChrisMaj

Жыл бұрын

I was born and raised in Poland, and I finished trade school there. Then I moved to the US, and believe me, inches were confusing at the beginning, but I got the hang of it.

@bostedtap8399

Жыл бұрын

Hi, im from the UK, its MM and Metres here now, big government push in 1970s to use the metric system, being a small country, we needed to export our machines, but didn't last very long. I fully understand why the USA has not completely adopted the Metric system, because it is such a large country, and the cost of converting or replacing machine tools would be to high. I was 8 years old when our schools started teaching metric, and we changed to 100 pennies in a pound (was 240), when i started my engineering apprenticeship in 1978, we used both systems, and on nearly always imperial/inchs calibration tools. Best regards John

@bac1308

Жыл бұрын

​@@bostedtap8399 until they come up with metric time and no timezones I won't be affected by people telling us to use metric (not you specifically, just Europeans that harp on it all the time.) I do use a ton of metric in my day to day life as is. I use a lot of inches and feet too. I also use 1/2 this shovel apart and one of these sticks high. Think of it more as the US being multilingual in measures instead of languages.

@bostedtap8399

Жыл бұрын

@@bac1308 The french did put forward base ten hour system after their revolution, alongside metrification. If Europeans looked a few centuries back, each had their own measurement system, and so for the rest of the civilized world. Any way, keep taking a lot of no notice as they say here. Regards John.