Heavy Duty Machining 1000HP Tree Grinder Shaft | Part 2

[@CuttingEdgeEngineering]

Hey viewers thanks for watching part 2 of machining a new shaft for a 1000hp tree grinder. So considering all the dramas...in the end we were able to save the customers $4000 piece of material but what should have been a 3 day job took 5 days plus a week waiting for heat treatment! We think the real winner here was the material supplier…who we never use for obvious reasons and we won’t make that mistake again of using material supplied by the customer from a supplier we wouldn’t use. In the end the customer was happy and we were happy to see it done and out the door. 😎👍 Subscribe and hit the bell icon to turn on notifications so you don't miss our weekly uploads. 👇 🤳 Follow us online here: Instagram instagram.com/cutting_edge_engineering Facebook facebook.com/cuttingedgeengineeringaustralia/

[@AsitShouldBe]

So, heat treatment discharged the internal strees of the material and solved the problem, NICE.

[@markfryer9880]

@@AsitShouldBe Not entirely correct. The heat treatment relieved some of the stresses but also introduced other problems. Listen again to the start of the video where Kurtis describes the shaft as a Big Banana.

[@AsitShouldBe]

@@markfryer9880 ok teacher 😉

[@damientoomey1194]

Love your videos mate. I’ll be watching to see what else u get up to this year👍

[@MrBiddo]

I hope you charged for every minute

[@whalley6044]

Retired metallurgist with 50 years in carbon & stainless steels. Without any data my guess would be one side of the bar got much hotter than the other in first anneal, resulting in larger grains on one side. Once that happens it can't really be fixed except by hot working like forging. Used to be referred to as "burnt" steel.

[@DJaquithFL]

You handled the blame shifting a lot better than I would have. I fired plenty of customers and stopped using plenty of suppliers. It's always such a small percentage that cause the biggest problems in their quest for greed.

[@CaseFreefall]

I cannot believe that they suggested your machine could "over stress" that rod. When a tooling arm can bend a 1T bar of 3140 i'l eat my hat. Top job as always. Props to the camera woman. 10/10

[@eccentricsmithy2746]

he was taking to much off at a time, the coolant was literally steaming off of the rod. Machinist error. Didnt warp after he started taking less off at a time.

[@FlyXenonRC]

@@eccentricsmithy2746 if the rod has non symmetric stresses like in this case, it is going to warp when he removes material. Although heat can expand the material it’s only a few thou per 100 degrees, much less than what we saw here

[@eriklarson9137]

@@eccentricsmithy2746 No.

[@joshua43214]

@@eccentricsmithy2746 It didn't warp after he started taking less off because it was now stress relieved properly. Go back to your armchair, you should not comment on something you obviously know nothing about.

[@bhazen406]

​@eccentricsmithy2746 if he was putting enough heat into it to warp it the bar would start showing temper colors witch generally don't start tell around 400 degrees (Fahrenheit) at that temperature it would be sizzling. Not to mention if the heat treat and or the temper is messed up it will absolutely cause the steal to warp scraped many of good knifes because I messed it up

[@SaltyBallBandit]

I appreciate the fact that you let the customer know that there was a problem. The customer apparently didn’t realize that you could have sent them home with the same banana and never said a word about it. Thank you for your honesty. I’m an industrial maintenance mechanic by trade and I can appreciate the quality of work you do.

[@moorem99]

I've had EN19T shafts do exactly the same thing. Some even moved after machining as they sat in the workshop for a week. The worse one kept moving every time we hit a shoulder, it didn't just bend, it literally shifted and looked like a cam. In the end we had all the material heat treated, roughed to 1mm and left for a couple of days on the floor before finishing. Great videos, I'm retired now but your work brings back so many memories... mostly good.

[@wingracer1614]

The only thing like this I have ever done was on a MUCH smaller scale. We're talking shafts of only 3-10mm in diameter cut on an ancient but extremely effective manual swiss lathe. Fortunately the material we were using was extremely high quality (and very expensive) steel. Even so, sometimes the first or last shaft off the stock would warp. Only .002-.003 inches but that was enough to scrap it. Fortunately that was only a few bucks worth of steel, not hundreds or thousands.

[@BentTreeFarmPa]

We used to cut big rolls for a roller mill, to really tight tolerances, and surface finishes. Like a half thousandth on an 32" diameter shaft sometimes. We, would strap them down, wrap them etc. treat them like egg shells. Well one day I had to deliver a couple rush to the plant, well I pull in, the guys hop on the truck, throw some big ole nasty chains on them, and let them slam together like church bells! I was like "what the hell, we have to keep perfect tolerances and a perfect finish, and you just put huge dents in both of them!!!" He laughed and said some engineer drew it, 2 minutes after they were installed they would be scratched and marred and unrecognizable, and most of the time they beat the bearings on with a sledge.! Seeing you making such a nice finish on a grinder shaft reminded me of that.

[@lancer2204]

You're happy, customer is happy. Supplier and heat treater are still trying to cover their arses

[@jonka1]

The truth denied is still the truth.

[@Calligraphybooster]

I don’t know if the heat treater is to blame for anything. The piece released it’s remaining tension and once relaxed had it worked without further problems I would think

[@jonka1]

@@Calligraphybooster I wonder if you would be so forgiving if you had been the one trying to use this substandard piece? Have you read Kurtis's comment about the days lost and his take on the supplier? This cost a lot of time and money because the piece was supplied substandard. Interesting that you would like to think that the piece worked without further problems. Maybe it did or maybe it didn't. Maybe it had used itself up by then in creating severe problems for all except the heat treater who, it seems, was blameless.

[@Airisweetheart]

Its NEVER the supplies fault. Ever. Easy when you are the first part of the process its all the other processes that are wrong.

[@ToreDL87]

@@jonka1 Well, it's literally a POS stock that gave everyone who touched it after it left the supplier, nothing but a big heap of trouble. CEEA treated it like they did any other piece, using the standard methods of the industry (including the 4-5mm roughing cuts), so who's to say the heat treater didn't do anything outside their own industry regulations? I'll give the heat treater this: After that POS left their shop it didnt deform again, and CEEA was then able to machine it to spec without further issues :) Supplier knew that piece was iffy but sold it anyway, the Customer, CEEA, and heat treater are happy it came out as well as it did considering what they all had to work with, and customer wont be ordering from that supplier (who it appears, has a bad reputation anyway) again :)

[@TrevorDennis100]

It's crazy for the metal supplier to suggest the lathe caused the run out when you consider what the shaft will be used for. There will be way more bending forces induced from chewing up bloody great tree trunks than the lathe is ever going to cause. Glad you got it done, but not as glad as you are I'm thinking.

[@CuttingEdgeEngineering]

Hey mate my thoughts exactly!

[@junior4969]

Ha ha ha blame the middle man Its a lathe not a press

[@dontimberman5493]

Oh ya if the lathe bent it then it’s of no use to the customer.

[@JainZar1]

Also, if the Lathe bent the shaft by that much, Kurtis would have had many a broken cutting bits to lament. In my, fairly limited, experience, you bend the work piece by crashing the lathe/mill into it.

[@ikocheratcr]

The torque the lathe and cutting creates is peanuts compared to the torque the shaft will see in operation, 1000 HP.

[@Rogster559]

There is no mistaking the sound of material out of round or banana shaped you did an excellent job getting it true well done

[@stephensomersify]

Having been HIGHLY 'ENTERTAINED' by all of your processes and vids over the last couple of years (It's Jan 23 now) I caught up with this DRAMA and watched the whole story unfold - but - noted your long face throughout!! :-) You have both progressed so much over time and you have clearly weathered the dramas to become TOP in your respective professions - engineering and YouTubing !!!!!!! Your ENTHUSIASM today truly shines through. Old git, UK

[@aserta]

Wanted to say, in a short amount of videos, you've improved video quality and the way you present things immensely. The speeds and feeds subtitles, the way things are put into frame. Just wanted to say that i for one appreciate this and it's a huge leap.

[@brendanshorter5550]

Sharen is Karen.

[@chrisc4088]

I agree. Much much better now. Was still interesting before but far more so now.

[@hackish1]

Me also. I love the fact little tidbits like the insert and such are thrown into the video so I don't have to dig through comments to find someone who asked.

[@michaelvangundy226]

Yes, great quality video and editing.

[@williamhoward7121]

Agree, I can see quality being added on every release, great filming!

[@Dsp.Studios]

Hello, I'm a machinist too, but I can only dream to tackle jobs of the scale you work on every day. I admire your skill and patience. Greetings from Italy.

[@michaelwillcutt2619]

Friend at old machine shop i used use to do train crankshaft from welding up heat treatment to regrinding to specifications

[@robindisney7716]

I am amazed at your ability to do such a wide range of things, as well as doing the fitting as well as the machining. Wish there were people like you in the UK. Been in engineering, for some 50 years, building big machines, but I am very impressed with all you do. Love the videos. keep them going.

[@adap2it]

Always a problem when the customer supplies the material, they believe it's cheaper by avoiding the mark up. I would have chosen 4340HT. Tough to machine for sure but incredibly stable after machining. Probably have it gas nitrided after grinding. Love what you are doing Kurtis by bringing attention to an industry that is seriously overlooked.

[@woods457]

I'm not a machinist, but coming from a mechanical engineering background i can spot a talented and methodical person, well done for persevering and making a "Sow's ear into the proverbial silk purse"..

[@thomasphilyaw8593]

Can't believe they tried to blame you for the cause of the runout. Excellent job in getting it done.

[@John-pm5qi]

That’s exactly what I thought lol

[@noahmerkley398]

Always easier to just blame someone else and let them deal with the headache. Sad practice.

[@aritakalo8011]

@@John-pm5qi Well maybe not, if it was outside third party heat treat shop. It might have been also comment on the material quality and not on machining. ala "use smaller than normal cuts and be extra carefull, since this is crap quality metal. Even typical normal machining might be too much for this hunk of crappy steel. Regards, independent materials specialist." instead of "you did too big careless cuts and thus stressed it". As in machinist did nothing wrong, but instead the material is of such properties normal machining isn't possible due to material properties. Which then would be more professional advice and friendly warning, rather than criticism of the previous machining. Of course not being witness to the exact words said and tone of voice and so on.... this is just speculation. Just saying.... I can see scenario where the heat shop is just trying to be nice guys and give heads up. I hope Cutting Edge got paid for the extra machine time needed to complete the piece. Which customer probably should ask as discount from the material supplier as "it was stressed out of spec piece, which we managed to save with extra steps to usable. Now you cover for those extra expenses as discount, since goods sold weren't as advertized and incurred extra expenses."

[@RadDadisRad]

I can, nobody wants to accept blame when it’s their fault. It’s so much easier to pass the buck and blame someone else.

[@dino2105]

Agreed

[@neildewald325]

It's a pleasure to watch a professional. I was a automotive technician for 40+ years and it's nice to watch parts being made with skill and care. Love watching your videos. It may have taken longer than expected but it's done and done right. That's the important part.

[@michaeltrilck5680]

Guten Tag, Mister! Sie haben alles genau richtig gemacht! Spannungen im Material sind immer möglich, wenn viel Material bei der Bearbeitung entfernt wird. AUCH bei dieser Stahl-Sorte!!! Das Auslagern der Spannungen im Material oder Spannungsarm - Glühen nach dem Schuppen ist immer sehr wichtig für ein befriedigendes Ergebnis! Sie sind mit viel Herzblut und Leidenschaft bei der Arbeit. Das gefällt mir sehr!!! Ich arbeite in der Metallbranche (Werkzeugmacher, Fräser, Dreher, Schleifer, Erodierer) seit 41 Jahren und ich sage ihnen, sie machen ihren Job SEHR GUT!!! Viel Erfolg weiterhin! 😎 😉 😁 👍

[@terrystark2433]

Totally magic work you perform.... Taking something a lot of machinists would probably scrap, and your expertise transforms it into a viable, straight shaft... Kudos 💯%

[@CuttingEdgeEngineering]

Cheers mate thanks for watching and commenting 😎👍

[@Getbent97]

As a fitter and turner, I have to say I love watching you work. Your skill and attention to detail is second to none! Don't know how old you are but I've seen blokes in the trade that have been at it for 40 years who couldn't machine half as well as you. Keep up the video's, your ingenuity and can do attitude makes me want to go out and machine something up right now!

[@KathrynLiz1]

Hear hear mate.... he's really good eh? Pleasure to watch... :-)

[@ianbegg9851]

There is something so therapeutic watching the lathe do it's thing on that banana of a chunk, quite mesmerizing really. I really appreciate the effort you guys put in to mount the cameras and slow mos for us to watch, then all the editing on top of actually having to machine that beast. A testament to Aussie engineering my hats off to you guys - awesome :-)

[@patrickhayes3099]

I am sorry you learned the customer supplied materials lesson this way. As a general contractor, I have experienced myself. I have also done it myself for an HVAC upgrade. I installed the exhaust fans in bathrooms and used the wrong fan, part number was off by one digit. I ended up replacing the fans and eating most of the savings..... I look at it like insurance. If I supply the materials, I am responsible for delivering a finished product to customer on my dime. They want to save money, I get it, though I cannot assure the finished product will be exactly what they want. I have also taken to raising my prices for customer supplied materials to account for extra time spent and the markup I lost on goods installed. I have lost business because of this and I honor those who chose to bail out. Lucky for me, I am more than busy enough. Love the channel!

[@johnghatti5435]

Never realized there was this much stress and basically a struggle happening in metals. I've used a small lathe and the metals being used don't really show issues like what happened here. Thanks for all you do! Another great video.

[@rowycoracing]

Excellent save. Way to stick with it. The heat treat guy who implied that too much tool pressure bent it is completely nuts.

[@olivermatich2818]

only thing I was thinking about watching this, was that the suggestion maybe more meant that if you take smaller cuts, the runout might be managed more easily as each cut relieves less stress in the material therefore less runout is created as each pass corrects the runout of the previous? definitely not tool pressure causing it lol

[@muzzaball]

Oh yeah, 5mm cuts affecting that massive rod - talk about 'clutching at straws'!

[@bamahama707]

The turkey just does not want to accept any responsibility...oh well.

[@MichaelKingsfordGray]

Especially when using coolant! He was telling mildly convenient fibs. We Aussies have a word for that behaviour: Politicians.

[@tonynagy2042]

You would think the manufacturer would have done several test's on that shaft. I see a video of 'Rockwell Hardness Test'.

[@andersonbagents2963]

Never seen one of them strapping tools in action before. That’s pretty freaking cool.

[@martinkennard1669]

A great video Kurtis. Retired machine designer here in USA Montana. We had a huge hydro turbine shaft once machined and the contractor/shipper strapped it to a trailer using log chains. Needless to say it wasn't accepted at delivery. Glad you pleased your customer in the end. A great channel, superb editing.

[@charlescoulson]

So impressed with your handling of this disaster area. Glad to hear that your language is as descriptive as mine when things go pear shaped!!!

[@chrissayers7076]

Interesting video, I now understand why some material are left in the oven to cool very slowly, my next door neighbour was a lecturer in engineering tried to explain, this was real world practical demonstration. Great to see a true master of his art at work, also a shout out to the ever so patient videographer, a sure steady hand.

[@adams3639]

Can always tell a Aussie youtuber by the language in the outtakes. 👍

[@donniebrown2896]

After seeing your out takes, you have the patience of a saint (on camera). Lol Job well done, know you're happy to see this one out the door.

[@asvarien]

Watching an Australian machine shop channel is great, I actually understand the measurements.

[@frankish5314]

Very nice as usual. Anybody who has the balls to cut threads that fast into a shoulder gets my respect!..:)

[@TomokosEnterprize]

Recovering that shaft was anyone's guess as to where it was finished to be able to work ok. Leaving the finish cut 5 over was a great thing to do. Just having the ends work out parallel and centered was all this piece really needed to be as the center of the piece was either floating or not having to be true was another blessing but you saved it and your conscience free and clear. Great post to revisit my friends.

[@johnburke2037]

Just for interest....about 35 years ago I was machining pump shaft 75mm 705 & 709 grade hi-tensile...One of them kept walking behind each cut....Tried Tungsten carbide and tool steel of different grinds......speeds....feeds....coolants.....no change.....The supplier said one grade was known for relieving stresses when being machined

[@ninataylor6180]

Thank you so much to the camera person and editor absolutely flawless pleasure to watch and Curtis well what can we say always perfection. I have watched Abom79 for a lot of years and you guys are certainly a certain breed LOL!

[@CuttingEdgeEngineering]

Thanks for watching 😎👍

[@andrewmicas4327]

No you are bang, great when they try to blame you. Had 50 years in engineering we machine 5000mm long shafts and roller. Stress relieving sound wonderful but the always bend due to how the support the in the oven. Plus we had chain mark damage, you are correct about Chinese quality control.

[@allangibson2408]

Chinese quality control isn’t too bad - they only export the rejects.

[@FishFind3000]

@@allangibson2408 they make exactly what there asked for. Customer says cheap they get cheap.

[@allangibson2408]

@@FishFind3000 The Chinese make exactly the lowest quality you won’t complain about (and they will test that lower limit repeatedly).

[@RichardPoxon-m3w]

What quality control?!! Their philosophy is if it looks like it is supposed to then it must be right.

[@leebarnhart831]

Can you imagine how much that shaft would have moved when you put the key way in it had you not had it stress relieved? It would have looked like a pretzel when finished. Great job of coming out on top on this one! Really puts the X in experience.

[@NarfBLAST]

Did anyone actually check if moved after cutting the keyways?

[@dsnicker9719]

You two make the best combination of videography and machining skill I have ever seen. A pleasure to watch. And not a lot of jaw-jacking. Thank you.

[@dermozart80]

Wow, nice job. Well done! The moment at 18:40 when the measurement was done must have been some kind of relief I guess!

[@kamper4140]

No way machining caused that shaft to warp like that. 4340 is pretty stable even with heavy rough cuts. I hate customer supplied material....you're work never fails to impress though nice job!

[@ProfessionalAmateur22]

That’s what I love about machine work you never stop learning I learned a few things myself watching this video thanks to cutting edge engineering!

[@xanderdad5898]

Crazy how you manage to do all this work in

[@thomasboyce1060]

Great to see you complete the job with the material you were working with. Enjoy watching you work as well as this is what my dad did for quite a while before he retired. Your work reminds me so much of him. He has been gone since 2005. Thanks for letting us watch what you do.

[@thisoldtruck991]

New sub here. I can spend hours watching stuff like this. (In fact I just did). Great format, I really like the way you let us know what tools and procedures your using. Never quit the bloopers, that's awesome. Pats for the dog, I can see who really runs the shop! Keep up the good work, mate.

[@CuttingEdgeEngineering]

Hey mate welcome to the channel thanks for watching 😎👍

[@MichaelKingsfordGray]

The camera work is top-notch as well.

[@millwrightrick1]

When your customer went out to buy a piece of steel, the supplier knew he had a guy on to finally unload the piece of crap he had been unable to sell before.

[@markfryer9880]

I doubt that supplier knows that much about the stock in the yard.

[@jimbob8969]

@@markfryer9880 yes they do.

[@drevil5546]

@@markfryer9880 They knew enough to say it was the end of a long piece.

[@dustyfarmer]

Like buying a shipping container sight unseen going off the bait photo the seller has of a brand new dent free box, come in sucker.

[@jasoncohn3944]

@@drevil5546 It's not a guarantee that a piece from the end is going to do that every time. Sure, it's a possibility, but not enough to suggest that the supplier was being nefarious. However, trying to tell them that they were essentially machining it too aggressively and that caused the runout...total BS.

[@adamayala1077]

I have to say that was one of the best machined parts I have ever seen machined. It was so out of tolerance and you brought it back to true. Great job, great video, good on you mate from south Texas USA. Love watching your videos and your dog!

[@rickybobby7285]

I’m thoroughly addicted to watching(listening) you work while I work! I’m a diesel tech and it’s a pleasure to watch you work.

[@PcTato]

no clue in half of what is happening but i just get entranced watching it all. going back through all the old videos and love every minute of it!

[@iscont]

Excellent turning, it goes without saying that the quality of the work done is first class. Likewise, the quality and editing of the videos is excellent, congratulations to the female who is in charge of the recordings, the editing, etc. I am a follower who has recently joined and was amazed at the expertise, the technique and the magnitude of the work carried out, as well as their accuracy. Greetings from Caracas, Venezuela...

[@joelhart9020]

nice save bro, I felt bad for you guys after the first video, I had to laugh when your supplier sold you a fucked bit of stock and then tells you you were machining it too hard and bent it

[@htc007898]

I'd love to know what size lathe you'd need to bend that bar, to say nothing of the almighty tool crash you'd need to do that. Best measured with a seismograph, I reckon. And then consider that if a lathe small enough to fit on a flatbed truck could bend that bar stock, what kind of service life would it have as part of a 1000 HP tree grinder?

[@tonycook7679]

He isn't saying that at all.

[@stevemiller6766]

Right. Did you see how bad the run out was after the heat treatment? Didn’t need a dial indicator it was so bad. Glad it worked out in the end.

[@spencercampbell8396]

I've been loving watching all your vids, very cool to see how other professionals work their magic. I will say though, the little cutaways to Tank makes me smile every damn time, such a sweet boy. Keep it up, guys!

[@CuttingEdgeEngineering]

Thanks for watching mate 😎👍

[@woos31]

Love the 'out-takes' at the end to emphasize that we all feel the same about projects that are going straight to plan..............

[@ianfiddes9871]

Silk purse from a sows ear comes to mind, brilliant job recovery 🏴󠁧󠁢󠁳󠁣󠁴󠁿

[@peterdouglas4073]

Wow, I have just bought a couple of metal lathes as a hobby. I knew there was a lot to it different types of metal, etc. But I never thought about how the metal is "cooked" not just what goes into the mix, would have such a big impact. Thumbs up to you. I just hope I can make an axle for the bike without killing myself, lol.

[@geofflewis4815]

Hello Kurtis, really enjoyed watching your videos on that very large shaft, sorry you had so much trouble marching it. Must have been frustrating when such a large piece of steel is on the move. I am a Joiner and had a small workshop, a chap came in with a very elaborate drawing, for a large frame and door, he wanted me to price it in CHEEP HARDWOOD, I refused because if the frame or door moved or buckled, I would have to remake it, " prat " probably some part time builder. Please keep your videos coming allways enjoy. 👍like the music, and your dog, he looks a character. Best wishes, Geoff Lewis, Wales, UK, 🏴󠁧󠁢󠁷󠁬󠁳󠁿🏴󠁧󠁢󠁷󠁬󠁳󠁿🏴󠁧󠁢󠁷󠁬󠁳󠁿

[@hydorah]

Wow yeah I can just imagine all the lateral force your lathe cutters are going to exert on a rod that's about 200mm diameter! Very plausible source of bending. Sorry you had such headaches, but what a great save. Calling time on machining when there was still enough material left in the rod for it to be saved was pretty remarkable! I hope your customer understands how much you helped them out!

[@paulsaliba4119]

All I can say is I like your sense of humor and you say it as it is

[@h2recoveryteam2]

Ok, I have to start off with, I am not a machinist. Worked with a bunch, helped a bunch. Yet not a machinist. You Sir are tops. After you spun it around and had what I could see as zero turn out. YOU THAT MAN. Giggle, Buy that man a steak dinner. You are truly a bad ass. Great job.

[@craighegarty4431]

You did an amazing job on this banana. It is great watching a great tradesmen at work.

[@CuttingEdgeEngineering]

Thanks for watching mate 😎👍

[@michaelcarroll6400]

Tool pressure caused a big lump of carbon steel to bend, new one on me

[@markfryer9880]

It's the caliber of the tooling inserts that Kurtis uses that does it. I have heard rumors that those inserts even influence the Earth's Magnetic Field.

[@mvansumeren4313]

@@markfryer9880 Can confirm, I'm in the USA and we get readings on the Richter Scale when Kurtis is working.

[@tpniefer]

It's supposed to withstand 1000 HP when chewing up a tree yet a lathe turning it can f*** it up?

[@dailrharris9009]

@@tpniefer I think I would have explained that to supplier

[@markfryer9880]

@@mvansumeren4313 Damn, on the Richter Scale you say? Here I was thinking it was something that I ate that was causing strange phenomenon.

[@jdshqs]

i feel your pain mate, had to do a similar rebuild not long ago. ordered a length of 70mm PG bar and they delivered induction hardened. didnt make any friends that day. awesome work you did there!

[@Bullshit1011]

My workshop was burned down last year lost all me tools mills and lathes n cnc , waiting in replacements now but found your channel in the meantime thanks for going some way to help my machining withdraws , ver educational too mate 😀👍🏼

[@jameswalker231]

I have watched a few of your videos now. Your attn to detail is commendable. A true Professional. Kudos

[@peterferree6258]

In a world gone mad I find your work ethic, precision and skill most relaxing. Mahalo

[@ehamster]

4:28 Doggo proud of his travelling steady rest.

[@SeanBZA]

Doggo likes to have a nice motorbike tyre as a plaything, or at least pretty every Staffie I ever met did. Preferably one where it has only nylon belts, you can cut the rim beads off so there is no steel. One of course loved solid rubber tyres, ate them off the wheelbarrow.

[@richsr33]

I have to say I love all the support you are recieving in the comments.. And I agree no way a lathe would do that

[@michaelnugent8285]

Dude, the little blooper real at the end had me grinning ear to ear. That was great. Loved the car joke.

[@CGT80]

Yes, those dodges suck. He didn't mention Chevy, so those must be the good parts.......all 3 of my trucks are Chevy......so may his material be all chevys on the next job! LOL

[@muzzaball]

So the Foundry blames the Heat Treaters, and The Heat Treaters blame the Machinist!! Just like any Mechanic, they don't fit parts supplied by the customer - lesson learned! Nice machining Kurtis.

[@samspade4634]

Don't you just hate dealing with companies that will not stand behind their products? That gets me all wound up inside just thinking about dealing with that again. I worked in the automotive industry (20+ years) until my nerves couldn't take it any more. You my friend are what this world needs more of. Thanks for sharing.

[@bigunone]

I was going to shut it down for the night and look what popped up. Good thing I'm retired and don't have to go to work in the morning!

[@CuttingEdgeEngineering]

Thanks for taking time to watch mate!

[@josephvella6669]

Ever considered turning between centers? 🤔

[@RMRifles]

Love the outtakes at the end

[@derekhartley4480]

I felt the getting hit in the face with a hot chip one deep in my soul.

[@clobysavage2385]

Very crazy to see the run-out visually like that, would have loved to see a full skim to showcase it

[@AM-nn9sv]

Dodge had a hand in that stock manufacturing... for sure. Like anything else. When drama/complications enter the job, only experience will get you through, if it’s even possible. Well done mate! Love these videos.

[@bobkaster1]

Amazing that you were able to save it, but watching that dial spin at 2:05... holy smokes! That's just jaw dropping bad.

[@ujjwalabagwe5143]

Usually when you are machining out around 30 to 40% of the total initial weight of the steel, I would recommend you machine out till only 80% of the final dimensions. You can take cuts of upto 2mm depending upon metal hardeness, speed etc.. but please note that the metal will take a warp in this process due to the heat and the amount of metal removed. After that just let the work piece lie down on the ground for atleast 2 days ( do not hold on vice) so that the grain structure relaxes due to this warp. Then machine the final 20% to the desired dimension and machine out the runout during this process. However reduce your feed rate and cut depth during this time. Just an advice, as this has worked for me in the past. Keep up the good work. I really enjoy your videos. Cheers

[@xephael3485]

Letting metal sit on the floor is going to do jack squat. Elastic and plastic deformation are vastly different things.

[@8__vv__8]

⁠@@xephael3485imagine learning a new thing without telling the person trying to teach you that they’re wrong

[@xephael3485]

@@8__vv__8 imagine understanding basic concepts in engineering and applying them in real life....

[@magnusgold4284]

I can’t believe they tried blaming you, Lucky you’ve got video evidence from doing your KZbin episodes.

[@wingracer1614]

I completely believe it. Glad he was able to get it right because this is definitely the kind of thing everyone else will blame the machinist for.

[@dontimberman5493]

Ya I can believe they tried to blame him but “the lathe bent it” they weren’t trying very hard. Maybe “was it dropped in shipping?” Try that one.

[@metricstormtrooper]

Well done mate, a really interesting look at the whole job, including solving the problems.

[@CuttingEdgeEngineering]

Thanks for watching mate 😎👍

[@sheikyerbouti83]

Man that strapping tool has got to be the most impressive part of the operation

[@lukasovysilenosti]

As a young technologist, if this happened at my job it would take me a lot of time to even start thinking it was the material causing the problem. I would probably blame the lathe, or the machinist. Thanks to you I´m smarter now. This was truly interesting.

[@aussiegazza69]

I originally subscribed to Abom79 for content like this...Keep it up!

[@CuttingEdgeEngineering]

Thanks mate 😎👍

[@markfryer9880]

Seems like a lot of the Channel growth is due to Abom79 viewers not seeing enough metal chips flying or welding rods and wire being consumed.

[@unkyuge]

At least Kurtis interacts with us from time-to-time too! Novel concept eh?

[@blueovaltrucker]

Me too...I like his machining content but it's getting scarace. He seems to like to vacation these days.

[@gregbrodie-tyrrell3473]

Kurtis, after you had turned the shaft end-for-end the first time, I very much admired the way the way you aligned the shaft with a dial guage on the steady band close to the headstock chuck by adjusting the tailstock chuck. Very clever! You're not just a pretty face, are you mate?

[@CuttingEdgeEngineering]

hahaa thanks mate I don't want to rely on my good looks too often 😂😂😂

[@grampaject57]

Greg Brodie-Tyrrell standard practice.

[@gregbrodie-tyrrell3473]

@@grampaject57 I'm sure it is, but Kurtis is the *only* bloke I have known to use a chuck in the tailstock as well as the headstock. Or have I led a sheltered existence?

[@davidrenn6897]

@@gregbrodie-tyrrell3473 nah mate, often made as a shop tool. Doubt you could buy such. Bloody handy with tubing, also!

[@GreatLakesLogger]

1 in the morning in the US, still gonna watch

[@CuttingEdgeEngineering]

Legend 😎👊💥but don't miss out on too much beauty sleep 🤣

[@jonathanharrington9648]

Same

[@GreatLakesLogger]

@@CuttingEdgeEngineering have been way too much lately. You know you're tired when you dream about one thing and wake up to discover that that dude is still machining. 😀 True story. I may have to finish in the morning.....

[@AsitShouldBe]

We are 9 A.M in Italy, you, Americans are always late! 😁😉

[@BorisSpark]

Pff only 1 in the morning 😂

[@murphymmc]

Having worked in the home building/remodel industry for many, many years, I've found that factory reps/suppliers are much like politicians. They have a tendency to "embellish" the truth, outright lie and always blame someone else when they screw up. How much more would you and the customer trust the guy if he'd just have said the steel was a poor lot, compensate you for your time, shipped a new piece. Now, you and everyone else is going to have a trust issue with the clown. Better to lose money than your reputation. It's always a pleasure to watch you work.

[@mattozx6rr]

Nothing but respect from this American. Damn good skills and craftsmanship. Should not matter where you are from. This guy deserves respect not only for his skills and craftsmanship but also for his patience! He took shit qualitt raw stock and made a top notch piece of it. This type of craftsmanship is what won world wars in the past. The blue nose is a bonus!

[@pyromaniac354]

Awesome work on that one mate. Over 10k more subs in a couple of weeks. 👍

[@CuttingEdgeEngineering]

Yeah crazy shit better start planning the 100K sub giveaway hahaa

[@sharkeyist]

Smart move getting 6mths or so ahead😉

[@sparty94]

didn't know that this could happen. good job on saving the material and getting the part made.

[@jnsfrahm]

I see the problem, that’s SAE steel and you’re cutting in metric. 😁

[@Skwisgar2322]

It's also clockwise steel and he is turning it CCW.

[@htc007898]

@@Skwisgar2322 Must have been intended for the northern hemisphere and got shipped down here by mistake.

[@kansascityshuffle8526]

Didn’t convert to bananas

[@notasbignow1]

I just blowing away what they where trying to blame you and your machining of the rod I’m totally amazed with these videos I sitting all the way in Scotland 🏴󠁧󠁢󠁳󠁣󠁴󠁿 UK great job thank you for sharing

[@geosutube]

Your work is so very much back to the basics! That is the only way to ensure correct machining.

[@dantreadwell7421]

Ya know, when he was backing out at the end, I almost expected him to clip the door with it.

[@NickMasseyRideon]

great Stuff mate, really interesting. Thank you for not putting some awful techo in the cut scenes :D

[@choppermike5162]

The manufacturer was trying to say that the machining is what was causing the runout? Are they high? That's the most ridiculous excuse they could've come up with!! 😂😂

[@cottonp20]

YOU ARE AN ABSOLUTE MAGICIAN! TO MAKE A FUNCTIONAL PC. FROM A PRETZEL IS ASTONISHING !

[@sionetoa1089]

The ol' swarf hittin the lip. That'll rip ya sak al'right!! Couple of coldies will sort that out. Mate, awesome stuff!! Cheers from NZ.

[@Murphyslawfarm]

G'day great video love the outtakes.

[@charleshetrick3152]

Do you ever just tell clients “I’ll choose the supplier.” I built houses for a while and it’s not like I ever let my client provide the lumber cause I knew where to buy quality so I wasn’t ending up with warped walls and so on.

[@CuttingEdgeEngineering]

Yeah good choice! We've never had a customer supply their own material before...big mistake on our part so won't have that happen again

[@donniebrown2896]

As a subcontractor for new home construction, I never let a customer tell me brand or source for the materials I used. When they did I would go to my truck and retrieve a form that relieved me of any liability and also resulted in no guarantee or warranty on my part to the quality of the materials used. Nothing worse than making a master tile mechanic angry, especially one with over 30 years experience. I've "walked" away more than once with no regret.

[@RocSpec]

I have had the same problems with clients they think they can get it cheaper but then get shocked on how much it cost to get it right in the end

[@markfryer9880]

@@RocSpec Always cheaper to get it right and with capacity to grow, first time.

[@chickenfarmer209]

Approved materials should always be listed in the contract documents. If the contract docs say hilti reds you don't use simpson or dewalt.

[@steamfan7147]

"Machining stresses" that's a good one , they do know what the shaft does right? 😂

[@kenstein]

I hear the same nonsense from old heads about how one shouldn't store crankshafts and camshafts horizontal outside of an engine because they will sag or bend. I'm like... You do know what stresses are applied to these right? They aren't silly putty.

[@htc007898]

Yeah, it's the main cross strut in one of those fancy ultralight mountaineering tents, isn't it? Flexible, ultra lightweight, forms part of a tensegrity structure. Or am I mistaken about what a tree grinder does?

[@SuperAWaC]

@@kenstein it usually comes from people misunderstanding how material creep works.

[@mariojudah3122]

@@kenstein it essentially is if you leave it stored unproperly if thats even a word

[@kenstein]

Oh look, someone who doesn't understand creep or the difference between elastic and plastic deformation

[@TheCuriousOrbs]

So refreshing to see a machining channel that's speaks in meaningful units

[@LScompanyWORLD]

Hello . the dog has to handle the rolling filings, because they will get stuck in their paws and it will hurt. You are awesome with this turning and the knowledge you have is powerful. Greetings from Poland.