Making a Hydraulic Cylinder Piston | Hitachi Zaxis 670 Excavator Part 1

This video is part 1 of a job to replace the hydraulic cylinder boom lift barrel and pistons off a Hitachi Zaxis 670 Excavator. Something has failed or made its way inside the cylinder and absolutely destroyed the pistons and scratched up the inside of the barrels, so we need to make 2 new pistons and replace the barrels! This part 1 shows the step by step process of making the new hydraulic cylinder pistons. We are starting with a solid piece of 200mm dia 38mnvs6 high tensile bar and need to drill and bore out the centre before machining and cutting the seal grooves on the lathe.
WATCH NEXT: Part 2 Making the barrels • Repair DAMAGED Hydraul...
In this video we are using:
Hafco TM-26120G Centre Lathe
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Our channel is all about showing you real life machining work from our workshop on the Gold Coast Australia. We specialize in manual machining, hydraulic repairs and heavy fabrication for the earth moving, mining and civil construction industries. So if you're a machinist that wants to see some big gear in action be sure to subscribe to our channel right now. We upload new videos every week that show lathe machining, milling, welding and all the good stuff that comes from a machining workshop. If that sounds like something that you would enjoy seeing, then make sure to join us by subscribing!
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[@CuttingEdgeEngineering]

How good's the before & after on this one! WATCH NEXT: Part 2 kzbin.info/www/bejne/mYG4p5Kwra5khLs 😎👍 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/ Official CEE Merch shop: www.ceeshop.com.au

[@ausshot83]

Another great video great to see some no fuss machining

[@scruffy6151]

👍👍

[@Howie_Dewwitt]

​@tony king you say you're from the UK, so you spawned the English language but I can not understand a bloody word you type... Back to school cobber...

[@ElectricalExistence]

always enjoy watching and learning, thanks Karl.

[@ventusprime]

i liked the piston no2 montas , it good to show kids ,or pepepole learning this, how to start with the base material.

[@TheEvertw]

Funny how economies work. Step one: everybody does their own repairs with local machinists. Step two: manufacturers optimize and centralize, manufacture everything by CNC. Step three: manufacturers charge too much money & take too long for repairs. Step four: smart companies does their own repairs with local machinists. Great to see you out-competing the big guys!

[@shadetreewelding]

I live in central IL, I did welding and fab repair for a number of years. I was amazing the lack of spare parts the OEMs kept on hand. Oh yeah that $1500 and eight weeks out. They'd come to me, yeah give me a couple days and $500. I was very busy. Kurtis, well done mate!

[@markpitre4257]

It all about selling parts that are marked up several times. Well it s really about Money 💰

[@tractorboy31]

@@shadetreewelding yeah it is funny. Sometimes its all in effort to get you to go to either a brand new cylinder or even as time goes a new machine because see how much to fix the old machine vs you could have a new machine. And also its how far out channels reach and then you hear someone is near by as im GR michigan area

[@merr6267]

@@shadetreewelding the "decision makers" at the large companies only understand the accounting and financial interests that can be quantified by their limited metrics. Many of those metrics are driven by books and training about "lean, just-in-time, (choose a buzzword)" nonsense that demands rigid adherence to policy no matter how silly it seems. Maddening things like throwing away spares that can't be bought again because 3 square feet on a shelf has a monetary value today, where 3 months downtime after you throw out the parts is only theoretical. 🤔 "Oh, you say this will damage our company long term? Impossible, I don't have a column in my accounting for that."

[@thomasfsan]

Things don’t cost what they cost to produce. They will sell it for as much as they can squeeze out of someone. Of course, the death of local machinists shops makes them able to charge such prices..

[@CharlesSmith-zt7vt]

I wanted Kurtis to say "That's not a twist drill. THAT's a twist drill!", in his best Crocodile Dundee style.

[@CuttingEdgeEngineering]

🤣 will have to use the Dundee quote someday

[@kempy666999]

And it had a very nice grind on it - very satisfying to see those two even spirals of swarf coming from it.

[@Sicktrickintuner]

Only 2” gonna need to do that with a 4” banana drill

[@gorillaau]

@@Sicktrickintuner Can we get mesurments in non-banana unit standard?

[@Peter_Jenner]

He should save that one for the big boring bar.

[@Trevor_Austin]

It’s clear that Karen has more than a really good eye for a shot but she also understands what makes a good engineering story (no surprises considering who she lives with). Her skill at editing is also very apparent. The engineering is not bad either. 🤪

[@CuttingEdgeEngineering]

Thank you very much!

[@mattarnold6229]

I have an debate in my head about which one of them is better at what they do... I go back and forth about it. I have sort of settled on the conclusion that he and she are an awesome team.

[@gorillaau]

@@mattarnold6229 The four legged member will be pleased at the complement.

[@Peter_Jenner]

Absolutely. I've said it before and I'll say it again, Karen is the best camera operator/editor I've seen on youtube and I spent 15 years working in commercial television. She has a great eye for a shot and a good director's brain.

[@ToolMachinebeast]

😍😍😂😂

[@matthewb8229]

Without fail, everytime I see you cut a chamfer, one thing pops into my head. "When it comes chamfers, there's no cutting corners." - This Old Tony.

[@CuttingEdgeEngineering]

Hope he someday gets back to doing his videos

[@avi8r66]

@@CuttingEdgeEngineering Your wish was granted!

[@kennethwhite8269]

Lol...

[@frankish5314]

1am on the West coast of the USA and am I going to bed? No!.. I'm up drooling over a lathe with a 4 banana spindle bore and a 50mm twist drill! Nice job as always..:)

[@CuttingEdgeEngineering]

😂👍🍌

[@gumwap1]

I aspire to your level of confidence. It’s inspiring to watch a skilled craftsman like yourself know exactly how to approach a job, or at a minimum, figure out a creative solution without compromising his work or values.

[@CuttingEdgeEngineering]

Cheers mate I appreciate that

[@ToolMachinebeast]

👍👍

[@Ordog213]

Honestly i like the old school way of work you do. Most new Machinists these days making a part without CNC Machines, and they need longer to draw the part in Solid Work to generate the G-code. Only working with a DRO and "simple" tools is so underrated, but you see the difference when you see someone work in an unknown shop somewere out in the sticks with only basic machines. No CNC means only that there is less stuff that can break.

[@MrPnew1]

Karen is like a female Alfred Hitchcock of machining cinematography. Great job CEE team

[@CuttingEdgeEngineering]

wow thank you so much!

[@outbackladas]

Nicely done 👍. In my day we only had HSS parting tools and they were a real mungril compared to these modern insert type parting tools. Would have taken a lot longer, with plenty of stops for resharpening, with HSS. Enjoyed the video, top job.

[@CuttingEdgeEngineering]

yeah i don't envy that! amazing what tooling these days is capable of

[@CJanNH]

Thank you Curtis and family! It is utterly fascinating to me to watch a skilled machinist create something useful out of raw materials. Love your repair videos too, but these videos are my favorite. Thank you for taking the time to create and share this content. Watching new parts come to life is like chicken soup to sooth a weary soul.

[@CuttingEdgeEngineering]

Amazing comment thanks for saying so glad it is enjoyed

[@neilfairless4589]

Karen that was brill, 'One word at a time!'. You laughing at Kurtis sets me off every time.

[@CuttingEdgeEngineering]

😂 I do have fun editing the outtakes

[@foranken]

Your videos are my favorite of the week! Between your machining skills, "giggles" camera work, and probably both of yours editing, they are awesome! Than you for taking the time to make these while running a customer-driven machine shop.

[@CuttingEdgeEngineering]

Hey mate really glad you enjoy the videos! Giggles does all the editing I can't hardly work my way around a computer 🤣

[@MoraFermi]

Those barrels were absolutely wrecked! I'm surprised they held any kind of pressure for long enough for them to get gouged so much! Great effect on that giant nut, you got me thinking that it was for this machine in particular at first.

[@GrowthCurveMarketing]

It's so entertaining to watch someone with so much deep expertise practice their craft - no less one that takes decades to master. I can't help but think you'd be nuts not to want this guy to do your critical work. I wonder how much the social media has driven his business.

[@CuttingEdgeEngineering]

Hey mate! We've had some new customers because of KZbin which we did not expect

[@markfryer9880]

@@CuttingEdgeEngineering Well that is a great result for all of the hard work by the team. I include Homie because it takes work to look as cool and buff as he does!

[@victorpaulportelli3872]

Love watching you work, it’s so satisfying seeing the metal take shape. And I love your channel because there is no music playing, just the raw sound of the machines working.

[@Arckivio]

Occasional musical/artistic interlude or swearing, but you're right, mainly just the machines!!!

[@johncoops6897]

That twist drill at 3:50 is just epic. The amount of force needed to force that size bit into a chunk of hard steel is incredible. And the grind was perfect, no chatter, 2 perfect spirals out the flutes! Great stuff, thanks!

[@ROGUPA]

You got that right!

[@charlesmadisonrhea]

The disappointment of the video ending is always eased by Homey’s appearance. I marvel at the amount of time (we never see) spent on sharpening, cleaning, preparation, organizing, and caring for the tools and machinery. I only work with wood, and the hand made precision I see on these videos is incredible. Well done, sir

[@jimzivny1554]

Beautiful job making the pistons. When I was young in my career I remember being the guy who had to clean out the hydraulic systems that were contaminated, I hated those days, covered in hydraulic oil, solvent and whatever we used in the pressure washer.

[@CuttingEdgeEngineering]

Yeah diesel fitters and mechanics get some shit work

[@stevenr8606]

You had to go there. Diesel smell is hard to rid of. Ask my clothes!

[@87mini]

@@stevenr8606 Out of the hair? Never! Ugh, don't miss that, no.

[@SurvivalRussia]

That is just beautiful work mate! Attention to detail right there.

[@CuttingEdgeEngineering]

Thank you! Cheers!

[@pikethree]

Lars! You visit here too! You definitely get around 🙂 glad you are better after that hospital visit. Edit: leave some bloopers in your videos like this man does, it's priceless stuff. Oh and their dog 🐕 😁

[@orreymodo5860]

Wow - awesome to see Lars here!. Just a better CEE party

[@daleburrell6273]

31:26..."CRIKEYS!!"

[@AdVapidKudos]

I was pretty anxious with how close you got to cutting into your chuck jaws. I guess you must really trust your digital readout and measuring by now to get as close as possible.

[@Hyratel]

That kind of close quarters work has got to be nail biting when you're on the sharp end

[@terryfromsouthcarolina4601]

Before DROs it was a micrometer stop on the bed to stop the carriage. You started off by touching the jaw with the machine stopped, that was your zero. You dialed the stop out about ten thousanths of an inch and let the chips fly. Problem was most of those old machines had a few miles on them, that stop had a nasty habit of scooting just a fraction on every cut. You learned your lesson when you heard that.. thunk.....thunk....thunk..... of the tool hitting the side of the chuck jaws. Time to stop and sharpen the friggin bit! You learned to have a tender touch with those stops! DROs sure make things a lot simpler, I was glad to get them especially when cutting threads. Terry from South Carolina USA

[@johnoconnor4941]

I really needed cheered up this week and you guys delivered as usual. The precision of the lathe work absolutely brilliant but the smiles, giggles and effort of Marcus explaining the job, beyond funny. Please don't ever script the vids... And thanks for distracting me.

[@CuttingEdgeEngineering]

hey mate hope your next week is a better one, go watch a few of the video outtakes if you need a laugh 😂👍

[@andrewrobinson2869]

That was Amazing. I bought myself an old 90cm metal lathe last year to practice on . Since i am only ever did wood working with a lathe. I Still got to get a drill bit holder for it. But unfortunately i fell ill at the beginning of the year. ( HEART ATTACK )Coming good now so i cannot wait untill i start to use it and make things. Blows me away to see what you can do. Your a extremely talented young man. Thankyou to all 3 of you for taking the time to share what you do. Many regards Andy

[@CuttingEdgeEngineering]

hey mate glad you are on the road to recovery!

[@markfryer9880]

Yes, good to hear that you are recovering well. Just remember to take small steps to ensure that you recover properly. You will have an excellent distraction in all of these CEE videos to watch and learn from.

[@JerroldKrenek]

ok i have been watching these videos for quite a while, this is the first time i have heard the name Karl mentioned. who is he????

[@Sircraig7963]

@@JerroldKrenek karl is kurtis ,his alter ego if you like,the guy who sneeks around making mistakes ,and drinking beer ,then measuring things in bananas,not mill mtrs. Karl is mega cool .

[@greggb1416]

@@markfryer9880 yessir, I “second” that sentiment, to Andrew... take care.

[@Alaskavenom61]

Nice camera work Karen, Kurtis it has been a few years since I ran a machine shop. I was a millwright at Red Dog Mine in Alaska, and was a machinist as well, in the first 22 years, there were only four of us “qualified”, people that could operate all the machines. It started as COMINCO and after a friendly merger with TECK, the plant was bought by TECK. I must admit that I have learned a few things by watching you, thanks Kurtis.

[@CuttingEdgeEngineering]

cheers mate respect to you!

[@richiewong1]

Friday, a day off work and 8am in the UK, perfect time for a bit of CEE.

[@CuttingEdgeEngineering]

Enjoy the day off mate 😎👍

[@gorillaau]

Nice to have the RDO, enjoy a leisurely breakfast.

[@AllJustOnesandZeros1010]

I love everything about these videos. I really appreciate the video/pictures of where the piece is from. i don't know a huge amount about construction or machines, so it is nice to see what exactly it is. Cheers!

[@CuttingEdgeEngineering]

Nice thanks for the feedback

[@abdullahabd7677]

I hope Curtis does a video of how he runs the business, talks with the client, goes through their needs and delivers. A video covering all the human aspects of the business.

[@CuttingEdgeEngineering]

So it goes something like this... Customer: I've got a job for you Kurtis: let me take a look...yeah it's fucked I can fix that Customer: great thanks 🤣👍

[@brianfalls5038]

I love watching you work Kurtis. Your attention to detail is amazing. Those pistons look like they must have taken the better part of 2 days to complete. Headed to part 2 to see you finish up the cylinders.

[@BruceBoschek]

Instead of breakfast, we watched this during dinner (salmon and curry rice) and really enjoyed it. Seeing those pistons emerge from those chunks of raw steel looks like magic. I have a question: When you chamfer the walls of the grooves, do you do it free-hand or do you set a specific "depth?" Thanks to Tristan from all of us viewers for the gift of those precision stones. We all profit from things that help Kurtis' work. Finally, thanks to the three of you from Bruce, Karin and Halgrim in Germany.

[@CuttingEdgeEngineering]

hey mate glad you enjoyed this one with a delicious dinner! The chamfering is free hand, on the groove edges it's really just to take the sharp edge off so not depth is not critical

[@assassinlexx1993]

You sure did not waste anytime getting the piston bored out. Your wife pictured on the beach. Homeless tackles his new toy but the look of disappointment when you open the package of stones. Was priceless. As always a top notch video from down under. Aussie engineering at its finest 👍🦘💯

[@captcarlos]

Hi Kurtis, good work, I hope the right cylinder tube becomes available. Those were FUBAR for sure. I'm not certain you understand what Tristan Hali gifted you with. They are not conventional stones any more. They are as discribed Precision Stones. They do not scratch/grind surfaces any more. They decapitate dings and scratches and POLLISH the rest of any flat surface you choose to fix. Go and rub down the top of your mill table or the ways of a lathe. I kid you not, it will amaze you. I grind, and also grind these occasionally, and if you rub freshly ground surfaces you can See how well balanced your wheel is, as an example. A seriously good present of tooling, if you use them.. Just sayn'.

[@captcarlos]

And today's out takes were pharquing hilarious!

[@georgerydberg4393]

Unbelievable transformation. Really fun to watch. The precision is head ache making, can’t imagine a full day of having to be that accurate. Nice job.

[@CuttingEdgeEngineering]

Glad you enjoyed it

[@badatheist9948]

a little jJB weld and sand paper those pistons would be good as new

[@ialeg3710]

I'm so glad I've found this channel, all killer-no filler long-form and well-edited and produced videos of watching a professional work.

[@bmrt1000]

The man, the myth, the legend. Top work bloke!

[@CuttingEdgeEngineering]

Thanks mate!

[@gavinoliver8074]

I operated a manual lathe 20 years ago for my job. Seeing that swarf brings back memories. Bloody hot stuff!!!

[@Daniel_cheems]

Haha always such a pleasure to see a video from you guys. Perfect chemistry! Also let us congratulate the parting tool insert for agreeing to work without coolant for our entertainment!

[@CuttingEdgeEngineering]

thanks #1 fan! 🤣👍 always good to see your comment mate thanks for the support

[@fascistpedant758]

I just replaced the outer barrel of a compound cylinder for an old forklift last week. I got a good price on a tube with a slightly smaller bore so I had to turn the piston down a little. Now I'm watching you do it.

[@dystopianlucidity4448]

Amazing vid. Between the two of you, y’all do amazing work! Great video editing, perfect timing on cuts and sound, and Kurtis, well he’s Kurtis being Kurtis. Give homeless a scratch for me, much respect, Rob.

[@CuttingEdgeEngineering]

Hey Rob that's a great comment to read thanks from us both!

[@jw4620]

I'm always amazed at how easy you make it look, to take a paper weight and turn it into a gem.

[@thurstylark827]

Duuuude, that ring toy is the BEST for dogs that love tugging! You can get em really riled up by giving doggo the middle ring and yanking em around with both hands on the outer rings :D Curious to see how long it takes for their safety to be fully tested (destructively, of course).

[@CuttingEdgeEngineering]

Hahaa I was doing that exact thing with him this arvo! He loved it will have to put a shot in the next video

[@terryfromsouthcarolina4601]

It's fun to give them a toy they can shake. We gave our dog a floppy toy that looked like an animal. She would grab it by the end, shake it and smack herself up side her head. She would get mad and shake it harder...and harder...finally stop and look at it as if she was thinking... THIS TOY IS WHOOPING MY BUTT! LOL! A while later she would try to win again...... Terry from South Carolina USA

[@fredflickinger643]

It's interesting how relaxing it is to watch you work your magic while it might be a bit tedious for you! Thank you! Homeless always brings a smile:)

[@CuttingEdgeEngineering]

Knowing the videos are enjoyed so much does make it worthwhile

[@cranefly23]

Sheer artistry! And the camera-work made it look almost balletic. I thoroughly enjoyed that. Thank you.

[@CuttingEdgeEngineering]

you're welcome thanks for watching

[@Alaskavenom61]

Shout out to HOMELESS, he has such a gentle nature, and that says everything about you two.

[@lastguy8613]

That drill bit near the start was bananas man! Possibly even 8 bananas, well at least that's what I tell my misses..

[@arfu8031]

Nice work. I recently had to make some large pistons out of bronze for a rotator. Internal threads and o-rings. You made this look easy. I can attest that it is not. The closer you get to the final step, the more nerve-wracking it gets. Once again, nice work.

[@dadst3r]

It's amazing to see you hand feeding for a completely consistent chip, like a machine feed. Practice makes perfect 👍

[@CuttingEdgeEngineering]

I am a machine 💪😎😂

[@dadst3r]

@@CuttingEdgeEngineering better 😁

[@Timebeaver]

I just wanted to say that yours is currently my favorite KZbin channel! Kurtis, you are an incredibly professional and knowledgeable person, and I love watching you work.

[@CuttingEdgeEngineering]

Hey David that's awesome mate thanks for the comment

[@AlanSprague]

So much for getting to sleep at a decent time. I blame you Kurtis for posting awesome content at 12:00am west coast USA time.

[@CuttingEdgeEngineering]

😂 sorry mate blame the missus!

[@FishFind3000]

At least it was midnight for you. I’d have to wait till 2am in Chicago

[@geoffwysham1731]

3am here in the East!

[@MattysWorkshop]

Gday Kurtis and Karen, the owners got a job and a half cleaning out the entire hydraulic system, I didn’t realise the cost of a oem piston, certainly cheaper to machine one up, the precision ground stones are awesome, I brought a set from shark river machinery and use them a lot more then I thought I would have, they make a difference, have a great weekend mate, Cheers

[@BaronVonBeef]

I click for the doggo, I stay for the machining 👌

[@CuttingEdgeEngineering]

haha love these priorities! 😂👍

[@joelburgstaler1458]

Always a pleasure watching your work. I wish someone would have told me when I was young that a Fabrication Engineer was a thing. I definitely would have gone down that route.

[@CuttingEdgeEngineering]

it's a very rewarding and fulfilling job to do

[@markfryer9880]

My late grandfather would talk about thou. of an inch while I was at school and it really messed with my mind.

[@Biffo1262]

It is an absolute joy to watch an expert in his field in full flow.

[@jk94332]

Some of your absolute best film work yet Karen, well done! Pistons turned out very slick Kurtis, honestly could watch you machine all day! Great work and an absolute credit to the hard work you both put in!! Keep them coming!

[@ypaulbrown]

Editing and camera work on turning was fantastic, especially the second one......well done Karen....cheers, Paul

[@CuttingEdgeEngineering]

Hi Paul! Thank you I thought it was a good chance to time lapse making a part start to finish 😁

[@danielpullum1907]

That was a great shot thru the headstock looking at the boring bar!!!!! It is amazing what the insert parting tools can do. The geometry of those tools is interesting. The price ref for the piston was spot on info for us amateurs!!!!! Keep up the great work.

[@CuttingEdgeEngineering]

thanks for watching

[@rons3103]

I think it is time to pre-record all of Kutis's lines, then have Homie step in and explain what will happen in each phase of the project. I'm betting it will be the same about of bloopers afterwards! 🤣🤣🤣

[@douglasharley2440]

respect to dude who gave him some precision stones!...now, _that's_ a noble gift.

[@garymucher4082]

You guys seem to turn out great videos every week. And the addition of the dog makes them even better too. Thumbs Up!

[@CuttingEdgeEngineering]

Thanks Gary we want to keep the content quality high so they continue to be enjoyed

[@jonka1]

Wow you learn really fast. It took you about 23 minutes to make the first one but after practicing you did the second one in just over 2 minutes. That's remarkable!

[@ngarewyrd]

Whatever it was that destroyed these cylinders, possibly took out the entire hydraulic system, could be a full replacement of barrels, pistons, pipes and pumps. That cannot be cheap

[@CuttingEdgeEngineering]

Customer said the pumps are being done and everything thoroughly cleaned and looked over

[@artmckay6704]

@@CuttingEdgeEngineering I gotta wonder if it was vandalism from a disgruntled employee......

[@steveb6103]

@@artmckay6704 All it takes is not cleaning the hose end if they have gotten dirt in them. I've seen damage like this before. I work on trash compactors some of witch the compactor and box are one unit. And the hydraulic power unit stays in place while the box is dumped. All it takes is not cleaning the couplers before reconnecting the hoses.

[@rigger8722]

Could be lack of maint - if the HP filter was not changed, and the bypass opens - add a failed component - and you have your debris migrating to the actuators - and fubar'ing them up good and proper. Great work Curtis, nice to see someone with your skills just going about his job in a very able and competent manner. Hat off to Karen too for great video and editing.

[@artmckay6704]

@@steveb6103 thanks :)

[@Paddington60]

RPM information is a neat touch Kurtis, thank you. I guess they just do not have filters in that hydraulic system, huummm! Homey seems to be trying to compete with the lathe in swarf production! Poor lad did not believe those oil stones were not for him! Thank you Kurtis, Giggler and Homeless.

[@HappilyHomicidalHooligan]

25:47 When using emery paper on a part like this, would a drop or 2 of cutting oil help improve the finish or just clog up the paper making it worse?

[@matthewdaigle7302]

good thing you post videos the time you do, when I get up to get ready for work at 3 AM and I have nothing to watch with my coffee you are always there

[@CuttingEdgeEngineering]

nice thanks for watching

[@humancattoy7767]

Oh My Giddy Aunt! That has skedaddled way past FUBAR. It begs the question of just how long the hydraulic fluid was contaminated.Y'all have got an interesting job ahead of you. Is the shortage also going to affect your consumables too?

[@CuttingEdgeEngineering]

No consumables issue at this stage just a few minor delays with deliveries but no big deal there

[@stephenshaw1159]

I don,t know why but I find this so relaxing to watch, but perhaps because if it does go pear shaped I don,t have to fix it always a pleasure to watch you turn metal thanks Kurtis

[@CuttingEdgeEngineering]

haha yeah it's always good seeing another person work hard 🤣👍

[@ChrisMaj]

Boss: Are you watching that dude from Australia again? Me: Yeah, he's pretty good. Boss: How about getting your ass to work, maybe you be as good as him 😎 Me: I feel offended.

[@CuttingEdgeEngineering]

hahaha this comment made my day 😂😂😂 did you convince the boss to get you one of those bluetooth dial indicators?

[@ChrisMaj]

@@CuttingEdgeEngineering Well, he doesn't think I need one.

[@mrbugenhagen3364]

Such a nice community this has grown into, I can scroll down for days and never see a negative comment.

[@CuttingEdgeEngineering]

we really appreciate the support we have from our subscribers!

[@Simon.charman]

Love the content. As a machinist myself for a big defence company, I work with a general tolerance of 0.1 to 0.2. What tolerances do you have to work with when it come to machining the bigger items that you manufacture? So nice to see manual machining at its best.

[@Toby-ju1fs]

That seems like an enormous tolerance but I suppose its for non critical parts. I work in a hydraulics manufacturing company and anywhere from 0.02 to 0.005 mm tolerance

[@CuttingEdgeEngineering]

hey mate as Toby has mentioned we're working within those same tolerances

[@rosewhite---]

1045 is the old EN8 and should machine nicely. takes me back 45 years when i machined plenty of it.

[@robertrawlings]

Kurtis looking forward to 2nd part well done mate :)

[@CuttingEdgeEngineering]

Cheers mate thanks for watching

[@artjudienelson2965]

Kurtis , greetings from Las Vegas . I am 82 now and love to see chips fly . I worked in fab shop at a company that makes Airplanes in Seattle . We would support AOG similar to this job . Something BROKE fix it !

[@CuttingEdgeEngineering]

hey Art thanks for commenting from over there mate glad you can enjoy the vids and relate to the jobs

[@Francis59flq]

C'est du grand ART passer l'outil si prés des morts du plateau !!!!

[@williamdawson3353]

Pure artistry. Before and after photos really set it off.

[@kempy666999]

First this time - Zero views - an incredible rare sight on this channel 😎

[@CuttingEdgeEngineering]

Yeeewww nice

[@katmalabrat1]

congratulations 👏👏👏

[@greggb1416]

Very nice gift there from the viewer... Kurtis your work, as always is excellent, but I wanted to give a “shout-out” to the camera operator (Karen), in particular the shot (early in the video) beginning of the piston fab..., her steady control of the camera, as she came around the end of the machine, and then slowly & precisely peered into the open end... She probably didn’t think twice about it, but on the viewer side, it was pretty cool... Great video, Thank you folks.

[@CuttingEdgeEngineering]

Hi Gregg thank you for the wonderful feedback it's always great to know what the viewers are thinking when they watch the video! 😁 Karen

[@MajesticDemonLord]

Already I'm smirking because Karl got a 6 pack of Beers. Maybe he'll stop drinking Kurtis' beers now..... I'm of course joking, we all know Karl will still drink all of Kurtis' beers....

[@CuttingEdgeEngineering]

Fucken Karl's at it again 🤣

[@ToolMachinebeast]

😍😍👍👍😂😂

[@normstafford2142]

I'm not a machinist but I marvel at the skill that Kurtis displays. The KZbin channel has hundreds of thousands of views. I don't know the ins and outs of the payment algorithm, but you do such a good job, you'll be making more $$ doing the KZbin than you make doing the machining.

[@sawboneiomc8809]

I’m hopeful that the cry is going international....”Let’s go Brandon!”

[@eviethekiwi7178]

Oh no i’m so triggered🙄 This is not a political video, let’s keep it that way please…

[@sawboneiomc8809]

@@eviethekiwi7178 Don’t be triggered...be proud of him if he’s your guy!

[@chrisharris8727]

Another fantastic video guys I can’t wait for part 2. I have a very old small lathe and milling machine in my repair shop in the Uk and I’m always amazed by what you guys turn out every week. I only use my lathe for making spacers and bushes etc and I’m self taught except for doing metalwork at school about 40 years ago - yes I am an old bloke but still a teenager at heart 😀 Keep up the great work and I just love your Dog 👍🏻👍🏻

[@CuttingEdgeEngineering]

hey Chris that's awesome mate, thanks for taking time to watch and comment

[@markbernier8434]

Amazing to me that there are detailed dimensioned drawings for antique equipment but nothing for new.

[@myronknight8700]

Kurtis, I love the machining tasks that you start and complete to the specified requirements, but I am completely blown away with your verbal bloopers, they are absolutely hilarious and show that yes, you are definitely human. The only suggestion I can make is for you guys to purchase a teleprompter, like the big television stations use! Have a great day and keep up what you are doing, you have a great product! Myron Knight, Trenton Ontario, Canada

[@mus87tang]

Being an owner and P Eng Mech you my friend are one of the best machines that I have seen in a long time .Good job. Tour customers are lucky to have you !

[@CuttingEdgeEngineering]

Thank you very much!

[@danhard8440]

can we take a moment to appreciate the person that got this guy on YT so we can all appreciate his skill and I'm sure that person is the camera girl thank you soo much for all you do behind the scene

[@didier6265]

No job for me today, rainy morning in France, great time to watch this video. It's always a pleasure to see someone with solutions rather than problems. Thank you.

[@CuttingEdgeEngineering]

enjoy the day off mate!

[@dumbotater2158]

You are a wonderful machinist. Your wife is a wonderful photographer. And your dog is just, well, wonderful.

[@MrKylew1990]

You are one hell of a machinist. I specialize in hydraulic maintenance and Machining, this watch felt really good.

[@Tigerbythetoe]

All around excellent stuff! This man knows his trade and it’s a treat to look over his shoulder and watch a master at work. The video is done well too, obviously a lot of effort put in. Much respect and admiration to you both and that good natured pup! 💪🏻👍🏻🇺🇸

[@thepagan5432]

Great job. Whatever ruined the piston assembly was not shy about causing such carnage. 4140 alloy steel is similar to S154 but without the nickel content. I worked on the JP233 project which used S96/S154 steel ( 2.5% Nickel Chromium-Molybdenum ). That material was one of the most awkward steels I've ever machined. The surface finish was always affected, but was acceptable as there were no mechanical bearing surfaces involved.

[@TomokosEnterprize]

Great start ! What a happy boy ! ! ! That is one r0ugh piston. Overheated like I have never seen and I have seen more than my share eh. Back flushing that system is going to be a real bear. The need for Paul/high pressure filters can never be shown better eh. I sure love the footage and editing that comes from your partner. Never a moment or important view is missed. You two just present us with great video's and fine work. It all takes me back to when I worked big in my youth. WOOHOO, Precision bench stones are just so nice to have for dressing mill and drill tables and so much more. I never had a set like these but used a single for many years. You know how much I LOVE big. This is another post that gives me a taste of those wonderful days long ago. Taking a rusty blob of steel and transforming it into a working piece integral to a big machine's operations like this is just so rewarding eh. The two of you sure do great on the out takes. I don't know who laughs harder on them, me or your Mrs. You two are just way funny.

[@markwatters6875]

Hi guys, my name’s Kurtis and welcome to English Is My Second Language. Thanks for another top video Karen, Kurtis & Homeless.

[@CuttingEdgeEngineering]

thinking of starting a 2nd channel... Learn to speak "Strayan" with Kurtis 🤣👍

[@scottscott6794]

Every time I watch this I enjoy it more and more great camera work.

[@oransmith6009]

You have a lot of talent that you don't see anymore, not many people like you

[@Howie_Dewwitt]

Geez I love this channel. Purchased my merchandise, subscribed and now looking to guy myself a lathe... Well done Kurtis and Karen.

[@CuttingEdgeEngineering]

hey mate thanks so much for supporting the channel and merch we really appreciate it!

[@fishabit]

Outstanding teamwork! I can’t believe how close you got to the jaws on the chuck with the parting tool. It may be everyday stuff for machinists but I was sure disaster was about to happen. Well done!

[@ericthimot]

Safety officer getting his well deserved treat at the end of a long hard day. Not an easy job keeping Kurtis in line. We love the little bugger.....and Kurtis is ok too. (not forgetting the lady behind the camera, you rock as well)

[@DudleyToolwright]

That was fun. Impressive work. In the possibility that you were not aware, those whet stones looked like they were precision ground flat stones (can't be entirely sure). If you rub them together they should be very smooth. The use for those is to remove high spots and burrs off of tables and ways that are already flat. The stones (if they are precision ground) will not remove any material or scratch flat metal bits, but burrs will come right off. Robin Renzetti covers them on his channel and I made some as well. They are really useful to use before mounting a vise on the mill or flattening nicks on the ways of the lathe.

[@robertbirch3074]

Love that precision machining.

[@Druid_Plow]

When sanding inside grooves like that, I like to use a piece of twine along the back of my paper. Gets into the corners at the bottom really well.

[@beetle1bailey182]

Diggin the tunes. Tastefully put into the right spots. Some Tubers blare loud music throughout, my ears start bleeding. Love the videos guys! You're one talented dude Kurtis!