I bet the boys were glad when you went home that day,, Cheers David!
@Brrraaack3 жыл бұрын
Once Dave leaves town hearing protection sales are going to colapse!
@sharkeyist3 жыл бұрын
Ah the finest chinesium! Any1 watch cutting edge engineering Kurtis in oz? He showed a 9” dia, 8’ long piece that banana’d real bad.
@alphadog69703 жыл бұрын
It plays a song called "never gonna buy chinese" the karaoke version.
@mjm71873 жыл бұрын
Yeah, CEE is anothe favorite, he did manage to save that part.
@sharkeyist3 жыл бұрын
@@mjm7187 yeah i liked his “ive got it close, now have it back n try again” attitude.
@HaraldFinster3 жыл бұрын
An other example for "quality Chinesium" is the construction of a the bridge crossing the river Rhine at Leverkusen near Cologne: they bought cheap steel from guess where and had to cancel the construction due to poor quality. "Buy cheap, pay more..."
@mikeysgarage36973 жыл бұрын
Hmm, not seen that one, not watched anything of theirs for a few months though.
@thecorbies3 жыл бұрын
Blimey! That could get on yer nerves. I say, THAT COULD GET ON YER NERVES.
@diggmore13623 жыл бұрын
What was that I can’t hear a bloodything what’s that noise
@darkhill5563 жыл бұрын
First time I've gotten seasick from watching a steady rest! Pretty amazing nothing broke during that cut.
@georgeswindoll91383 жыл бұрын
Love your videos Dave, keep them coming sir!!!!
@TheEvertw3 жыл бұрын
Wow, I am amazed the steadies didn't break. The stress must have been humongous.
@dennisleadbetter77213 жыл бұрын
You can see when it's turning the gap between tool and piece is not running true. That putting enormous stresses into the lathe bed.
@graemewhite50293 жыл бұрын
I can see why you run the nylon pads now. Did the middle steady with the chastity belt fitted succumb to vibrations some time in the past ?
@mjm71873 жыл бұрын
I love the sound of inconel in the morning. Though I never machined it I used to whistle in the shop and manage to get a harmonic that was really annoying. Those were the good ol days.
@ianpendlebury37043 жыл бұрын
The not-very-steady steadies. Fascinating stuff, as usual.
@bcbloc023 жыл бұрын
If those steadies were lagged down tight surprised it didn't bust em. That is a lot of movement. That part was like a wet noodle, hate to have to make something precision out of it if it keeps changing like that!!
@machiningbasics17293 жыл бұрын
It’s a form of stress relieving. An old racing car chassis was drilled for lightness by a mate and it “relaxed” when drilled to a slightly bent shape
@CH-pt8fz3 жыл бұрын
Wow ,my dad used tell me how this could happen on some materials on big long jobs, especially if it hadn't been stress relieved, but I've never actually seen it. Thanks for sharing 👍
@scottchappell31933 жыл бұрын
Sounds like a sherlock Holmes movie THE CASE OF THE 3 DANCING STEADY RESTS 🤣🤣🤣
@Jabbaholl3 жыл бұрын
Forgive me for asking a daft question, I'm not a machinist by any stretch of the imagination, but would I be wrong in assuming the movement is only in the steady's or is the inconnel (I take it that is inconnel from the horrendous squeal. Only learned that watching your channel) that bloody tough that it's making your ways/lathe bed twist and flex too? I hope I've used near enough correct terminology for this to make sense
@ChrisB2573 жыл бұрын
That's amazing - and concerning too. Fascinating to see that Dave.
@alasdairhamilton15743 жыл бұрын
Kurtis at CEE Cutting Edge Engineering had the same problem with one of his work piece a couple of weeks back. 👍👍🏴🍺
@jameswood77122 жыл бұрын
Need to add horizontal roller’s to the two support steady rest?
@juanyamasaki99303 жыл бұрын
hi David good work,can you tell me slip pad material?
@Frenchylikeshikes3 жыл бұрын
Those steady rests have obviously seen more than 1 war, and they've been patched and band-aided more than a couple of times. Yet here they stand, proud and tall.
@robbiestevens11583 жыл бұрын
Always enjoy your videos fella 👍 Life would be boring without these sort of issues lol
@loydsa3 жыл бұрын
great video David, some serious stress in that steel!
@friedmule54033 жыл бұрын
Sorry for my ignorant questions but all this is new to me. I am thinking that the moving material, does it not bend the drill out of straightness? And does it not twist the steady rest out of shape?
@kisspeteristvan2 жыл бұрын
Hello David , how are you doing , i've not seen an update in a year or so . I hope you're well . Best regards.
@top2percent3 жыл бұрын
Concentricity? Never heard of her.
@jaymachines75873 жыл бұрын
Wow watching this is eye opening for sure I’m lucky I work on tiny stuff mostly aluminum and stainless but this is big boy machining right here. How do you stand that noise all day long man!
@victoryfirst28783 жыл бұрын
Hello David, O.K. how do you keep size on a piece that is not stress-relieved ??? Keep on making nice work on the lathe too. Peace
@paulrayner45143 жыл бұрын
Am I seeing thing or was that steam/smoke coming up the back at 2.34? presume the job is scrap?
@MattysWorkshop3 жыл бұрын
Gday David, that’s incredible how much it has moved, can the section still be used or is it scrapped and start again?, the steadies certainly dance around, thanks for sharing another interesting video, cheers Matty
@scania19823 жыл бұрын
Is it headed för the scrap bin or can you remove stress by heating it?
@TrPrecisionMachining3 жыл бұрын
very good video david..thanks for your time
@OldePhart3 жыл бұрын
So steel can have stress inside that you release from cutting? Like wood can as it dries? I had no idea.
@gj914713 жыл бұрын
The only way to get stress out by Vibrating the material and Cryogenic Freezing..... Before final machining
@IcthioVelocipede3 жыл бұрын
Yes, there can be internal stresses from how it cooled, so that part of the material is trying to bend it one way, part is trying to bend it the other way. It starts out straight, but then you machine away one of those parts, and suddenly there is nothing opposing the remaining part that wants to bend, so it does.
@OldePhart3 жыл бұрын
Interesting, I knew this about heat treatment, not this.
@gj914713 жыл бұрын
@@OldePhart Cryogenic Freezing is an extension of Heat Treatment.
@greggbowler65253 жыл бұрын
david 👋 why the rope on the steady ?
@blazemaster833 жыл бұрын
Are the 2 rear steadies on the trepanning tool fastened down? looks like they are dancing
@gajterpin23123 жыл бұрын
BOOOY! If my steady rest started dancing like that, I would shit my pants! If the workpiece does not run in the center, the steady rest can also pull it out of the chuck, if it is not supported by the tailstock.
@sebastianschwobel56883 жыл бұрын
I did not know that you could bend a steady this much without breaking it.
@tomb77043 жыл бұрын
End piece of the bar?
@MrRShoaf3 жыл бұрын
So, what was the result? Also did you find out why?
@stephenroberts76263 жыл бұрын
Not sure how you managed that mate. As you say it happens on long jobs but I've never seen that. Can't be tool centre heights or they would have gone bang ages ago. Could be one of engineering mysteries like a threepenny bit shaped bore. Give it a new engineering name. The Wilks wobble. Nice vid again mate. Steve Roberts.
@craneop28403 жыл бұрын
Was that steel hardened ? Would it make those noises if it was annealed or normalized? -Thanks
@grumpyg93503 жыл бұрын
Have to drop the pan and check those rod bolts.🤔👍👍👍👍👍👍👏🏻👏🏻👏🏻👏🏻🍻🍻
@TheEvertw3 жыл бұрын
What did you do with that bar? Send it back to the customer? CEE recently had a piece that banana'd badly, they had it heat-treated to relieve the stresses.
@glencasson90463 жыл бұрын
Wow! So does it leave your care like that, is there more processes it can go through to correct it, or is that another firms responsibility David?
@EdgePrecision3 жыл бұрын
I hope the machine work on the part that comes out of that tube isn't to detailed. It's going to be hell for the machinist. What's all that reinforcement on the center steady? Did it get broken and that's the repair?
@kyledombrowski70513 жыл бұрын
It looks like a coolant guard from here
@MrTurboturbine3 жыл бұрын
Where does the movement come from? The frame of the steady rest flexing?
@Mjerkcheeze3 жыл бұрын
the material has not been propperly heat treated and started wandering. and yeah the frame of the steady-rests are flexing some :)
@cda323 жыл бұрын
Looks like the entire lathe bed is flexing.
@Mjerkcheeze3 жыл бұрын
@@cda32 at kzbin.info/www/bejne/panQYX6mhbaWrrs if u look at the bottom of the picture u can see the steady rest moving and you can see the bed at the sametime.
@ianm14703 жыл бұрын
Core~blimey !!!!
@CraigLYoung3 жыл бұрын
It's like going to a rock concert, loud and annoying but very satisfying.
@gearloose7033 жыл бұрын
I was wondering how this is not a problem. It seems it is, but not on exotic alloys.
@MrLukealbanese3 жыл бұрын
Poor rolling at the mill that one. Brill video though Dave ;-)
@lloyd47683 жыл бұрын
Ok that beats finger nails on a chalkboard!
@dazaspc3 жыл бұрын
Looks like the stock had a second start in the rolling mill.
@chrisbevan63903 жыл бұрын
feel for that machine blimey but if it survives it will be one well settled machine bed
@TimS3663 жыл бұрын
Is anybody making good steel these days, or is it a case of the client not wanting to part with the cash?
@markfryer98803 жыл бұрын
Well part of the problem is that China is now THE major steel producer in the world. By our actions we have allowed China to gain major market share and kill off steel plants in numerous countries. Steel is treated as a commodity when it quite obviously isn't. Apples come in a range of varieties and so does steel.
@sausageseggandchips3 жыл бұрын
@@markfryer9880 The odd thing is that it doesn't seem to be that cheap. If I think back 20 years I don't remember parting with as much cash for steel generally (square, flat etc) when China wasn't as dominant. I might be remembering incorrectly but.....
@sma113 жыл бұрын
Not an issue of what country is making the steel. As machinists, have almost no say in what material we get and what heat treatment it has recieved. Different alloys are more prone to stress issues. We would buy 316L bar stock from reputable mills and even then, there was sometimes significant variance in batches, sometimes extremely tough, sometimes parts could not be degaussed because the were rolled to shape at too low a temperature and work hardened which increased magnetism beyond acceptable levels.
@metalmanipulator72103 жыл бұрын
Dave, do you ever get tired of trepanning? Always fun watching your videos.
@DudleyToolwright3 жыл бұрын
Amazing. That's all I can say.
@paulhammond74893 жыл бұрын
'Steady Up lad's'. We may have got some Mancunian heat treated steel?
@theonlybuzz19693 жыл бұрын
Got to love the load tensioning ropes, well 1/4 light line on the green first steady, found to string?? On the third one? Thanks for sharing this with us....Phil
@K-Effect3 жыл бұрын
I think the light line is there to hold up the chip/splash pan
@piavigdalsgaard22303 жыл бұрын
AMAZIN David Wilks ..im in love. But not in that Sheffied Weathendsay Color ( Colour ) ... Happy Easter - Your Danzing Steadies from CPH Airport ( Engine fitter out ) V=318 * V / D rit? .. q.e.d - If she lubes goods she runs good? Abmarch
@ChrisMaj3 жыл бұрын
That's what happens when you work Sundays 😅
@keithtpullin3 жыл бұрын
What do we do now then ???
@patrickshaw79833 жыл бұрын
Some serious runout there. more string needed.
@levitated-pit3 жыл бұрын
love the vids mate! bet you were called wilksy at school lol!
@juanyamasaki99303 жыл бұрын
so much stress for the steady
@gentharris3 жыл бұрын
Yikes THATS scary AF Well that ain't gonna meet up in the middle................
@LAsparkTVWireTestLimited3 жыл бұрын
my god, you are brave.
@waynep3433 жыл бұрын
cutting edge engineering down under had a piece that did that also... part one of their video on it.. kzbin.info/www/bejne/bHS0c4CIicaba6M. the deeper they cut the more banana it went..
@aldetitman973 жыл бұрын
earthquake on a machine 😳😬
@Bobbycat1153 жыл бұрын
Chuck it in the scrap heap and go have a PINT OF GINNISS
@mackk1233 жыл бұрын
You've heard of the dancing steady rests, but you heard of the *DANCING ISRAELIS* and the _ODIGO WARNINGS?_
@davidb65763 жыл бұрын
No, but I have heard of idiots who believe the stupidest conspiracy theories about a tragic terrorist attack.
@DolezalPetr3 жыл бұрын
it is bending so much
@Peppins3 жыл бұрын
Why the rest is moving, wtf -.-
@ronnydowdy74323 жыл бұрын
Hole will be egg shaped
@shovelguggelheim84543 жыл бұрын
The not so steady steadies.
@Rebar77_real3 жыл бұрын
Yikes! Cool though.
@axeman26383 жыл бұрын
stressful job hey?
@billhanson49213 жыл бұрын
don't like to say it dave but i think yer big ends gone lol