I always enjoy seeing your set ups. The serrations on the edge of the tubing to cut the wood to fit the bore is brilliant. Thanks for taking the time to share. Craig
Reminded me of Royal Ordnance Nottingham and boring 120mm Tank barrels...22 years I worked there.. Then Thatcher closed the lot...Shocking really when you think about it..
not many victorian style entrepreneurs about these days, only money men in suits. If there were more, there might be forges where there are now retail parks. That's progress, I think not. We need more money men who don't mind dirty fingernails.
Sad ending to that amazing video. Many likely don't realize the significance of that ending either. As I have commented before, you and a few others are upholding the pride of Sheffield as one of the major workhorses of the industrial revolution. Sad seeing Chinese steel but hey ho, it is what it is. Especially when there are mills in your area sitting dormant that could be making that same steel, at a higher quality. In my shop, my lathe is a Clausing, all my angle plates are Eclipse, my Bridgeport collets are Crawford and my lathe chucks are Pratt & Burnerd (old). My rule of thumb is simple. If it says "Made in England" on it, I buy it. Keep up the great work mate. Look forward to the next, as always.
I run a French lathe from 1975, good ole gal too, the original 3 jaw is on it still, but the jaws are somewhat worn, it is a Cazenueve hb575, i did have a Brit Dean Smith 1978 a lathe well before its time but alas the ways needed doing, I sold it for 3500 Au rebuilt they are fetching moonbeams
Love the old British machine tools. The machine I built my company from nothing with is an old Elliott Concord lathe. Pretty pisspoor compared to a DSG but it was cheap and available and got me further than I ever imagined.
Glad to see you trued up a spot for the steady rest. I usually true up a spot near the chuck as well to the same size diameter, incase I have to flip it around. And for something to indicate off of later. That wood always helps to soak up chatter as well.
Dave , that would have to be one of the best large dia boring videos that i have seen . I wish i knew about the support block idea years ago when i had to bore the spindle of a Ward 10 through the entire length . Cheers .
@@userwl2850 are we rely not getting that wood piece slowly eroded in such a fashion that tolerance is lost? What if the project requires a 5m deep pipe. Can it be done in principle with the same method?
@@aion2177 I'm currently making a video on that exact thing buddy. YES it does wear but there is a reason and a way around it. Keep watching and you'll see what I'm doing. 👏🏻👏🏻 good call 👍
Deep hole boring had always been a challenge - luckily in this case there's honing stock to get the bore dead straight, sometimes we have to hold it straight at the lathe!
Nice. We used fixtures that slipped into prepped bores to secure the first 5 ' of a 17 ' boring bar and a tool located roughly 6 ' back. With this I could cut 300 on the diameter, taking about three-quarter of an inch in two ( knock on wood ) passes. We'd leave about 50 thous for honing on a 122" x 7.775" bore. Man, those Sunnen 210 would scream something fierce while ripping out the stock to a +/- 0.003 tolerance. Great fun.
I like the wear pad. We used two opposing pads on the much larger Niles boring lathes I ran. Your way seems much better, less setup time. It took us 6-8 hours to do a setup.
Ahh - the wood trick again :). 5 thou tolerance is quite something to shoot for on work that size. That's one heck of a nice finish Dave... chips look great, despite what appears to be quite a generous feed rate. Must be time for a few cups of coffee while those pieces get done! Made in China eh - !!
I see in the last video posted someone talking about you closing down your shop. Seems like not much has changed for you ? Except a steady pay check each week. ( which is something you miss when running your own shop ) It,s a shame you did not get to finish your Deep Hole Boring Machine project. I hate when there are things in your life you wanted to do but never got to do. But i guess life is like that. I am sure the stress of running your own shop is not missing for you. Good to see you can keep going doing what you enjoy to do as a job. All the best to you, Dave. Peter.
Perhaps this is the lad I seem to remember from a few years back making these trepanning tools where his mill looked like it had enough crust to have been reclaimed from the sea ? Ahh if so, hello again, and best wishes.
Just found your videos, brilliant watching how you tackle jobs. With the wooden block is there a reason you place it on the underside of the bar and not opposite the insert, opposite the insert would make it easier to get of the chips as well.
that's a sad way to end the video my friend. too bad. Where i live, a 100,000 man tank factory closed down, and you bet they had their own foundary and make their own giant boring mills and lathes ...
@@userwl2850 a few years ago I was in Fleetwood. It was the middle of winter with few people about. I decided to get some fish and chips and had to wait while it was cooked. The fish was frozen and taken from a plastic foam box; imported from France.
Another great video Dave. There is a rolling mill about 10 miles from my new shop but it mostly makes structural sections which I rarely use. Most of the steel I use is from China, India or Eastern Europe. Not by choice, that is what the local suppliers have. What type of wood do you use on the boring bars? Also, is it cut into an arc shape from solid or is it steamed and bent into an arc? Thanks, Ken
Great how to video David. Looks like I will get to use 316L type stainless Sch 80 pipe. (.500 wall) and bore/hone instead of the thousands of dollars to make from bar 27" long. There is a bit of money in this set up. Boring bar and support. I guess for this set up to work they must be aligned pretty much perfect otherwise as they get closer together it will kick left or right and up and down? The wood would stop it going down a bit I guess. Do you replace the wood support after each part even if all your parts have the same bore? If the chips are stringers does it tear up the wood? Not sure if I will get chips.
sorry you are quitting, i know how you feel , i quit small ship building, my plate rolls my overhead wheeling plate forming machine gone, getting old, mistake to sell tools, but, ah well, hope you are well Mr!!
@@stuarth43 I've brought it to the place I'm working now so I still get to use it along with my Bridgeport Mill. Can't work without both. Thanks for your comments buddy 🍺👍
Do you use micarta as the slide bushing that controls chatter ??? How much flex do you get when boring with your bar and what is the clearance inside the bar itself ??? Thanks David and peace....
It's a hard wood. No chatter and holds size brilliantly. Generally around 2" all round clearance. I use tufnol on the Trepanning Tools to hold size. Nice to have your comments. Thanks. David. 👍
Cerulean machine operator, not a machinist big difference between a machine operator /but this machine operator is probably the best at what he does you can’t judge a good machine operator. The machine is conveyed his average with a machine operator because he’s good at a lot of machines he’s not gonna just one guy respect for both men
I was expecting to see rifling when you showed the finished product (working in Sheffield and all), but I guess these are to be hydraulic cylinders? Awesome work.
That really is a great way to do that sort of boring, I suppose the sticker in the pipe is amusing in one way but find it very sad in another, what’s this country coming to. Al.
Using the wood block as a support is genius! I'm assuming you're leaving it slightly oversize so it gets cut down as it enters the bore? I wonder if that trick would be applicable to more "conventional sized" boring bars as well.
Lindsay, Excellent question. Self sizing internal support works well in this application given large size and the boring bar is concentric to work piece. My experience working with conventional boring bars is a lack of concentricity between tool and bore. Also there is typically a large difference between bore ID and bar OD. Fixing wood to the bar is an issue too.
2:35 Like how you turned the tube into an improvised "drill". Did you do that manually with a hammer and chisel? I was wondering how you made the tube cut the wood so cleanly without crushing it.
David, the label does not surprise me at all, the entire world has been captured by low prices and we've become very much a throw away society because of it, much to our detriment. I enjoy watching your videos, those older lathes certainly have the extra iron and built to last quality to do the work you do. Is the tool advance screw driven or hydraulic for your trepanning work? Regards from Australia.
How does one prevent a scratch line from the tool when retracing the tool after finish boring? Or is the tool deflection so minimal it doesn't leave a line?
What wood species Dave ? Or does it even matter, I wood think a softwood wood swell from the soluble oil & raise the tool height a bit , changing the bore diameter slightly ?? I initially thought u were using tufnol... but woods a LOT cheaper 🙄😂 Thats a good "bite" ... is there a skin on the bore ? 🤔 😎👍☘🍺
@@userwl2850 Thanks for answer! :) Have you tried it with hardened metal support pieces? The wood is ofcourse more simple since theres no need for adjustment.
@@HH-Machining on some tools for deep hole boring the support pads are carbide. Look on my channel to see the high precision 103.80mm flat bore drill video.
@@userwl2850 I gave that video a look when it came out ;) I assume that those carbide pads are set exactly for the bores diameter? Or how much clearence it needs?
Ravi Chandel - Not really a “must”. However learning on a “conventional” / manual machine and transitioning to a CNC would be a better path than starting on a CNC. It would allow you to learn and understand the fundamentals of machining and how different materials and sizes react under different conditions. In my experience though, there’s not many people out there that understand both. Just my 2 cents!
Hopefully the Chinese steel has improved from what it used to be. Last time I made a hydraulic cylinder like that it held size all through but the concentricity looked like a piece of rope. LOL Bloddy CMM
These tubes taper 0.005" from start to finish. Leaving between 0.020" and 0.025" for Honing.
HI David I wonder if (maybe you already did) explain how to fit the wood around the boring shaft......thanks for your knowledge....Andrea.
Hi David. .do you have video how set up the wood around the boring bar?
I always enjoy seeing your set ups. The serrations on the edge of the tubing to cut the wood to fit the bore is brilliant. Thanks for taking the time to share. Craig
Thank you for watching.
DAVID do u have video how set up the wood around boring bar?
My hat off to you David for keeping such a tight tolerance on long tube. You should be called a magic man for sure. Nice
Ive been doing this machine work stuff for near 40 years, and I’m seeing some next level techniques. I don’t mind saying.
I liked the way a wooden semicircle was placed to absorb vibration, thank you and wish you well.
Reminded me of Royal Ordnance Nottingham and boring 120mm Tank barrels...22 years I worked there.. Then Thatcher closed the lot...Shocking really when you think about it..
Bad times buddy
not many victorian style entrepreneurs about these days, only money men in suits. If there were more, there might be forges where there are now retail parks. That's progress, I think not. We need more money men who don't mind dirty fingernails.
I'm with you.
Man, so true. China getting dirty finger nails and rich while we buy shit from them retail parks...
Sad ending to that amazing video. Many likely don't realize the significance of that ending either. As I have commented before, you and a few others are upholding the pride of Sheffield as one of the major workhorses of the industrial revolution. Sad seeing Chinese steel but hey ho, it is what it is. Especially when there are mills in your area sitting dormant that could be making that same steel, at a higher quality.
In my shop, my lathe is a Clausing, all my angle plates are Eclipse, my Bridgeport collets are Crawford and my lathe chucks are Pratt & Burnerd (old). My rule of thumb is simple. If it says "Made in England" on it, I buy it.
Keep up the great work mate. Look forward to the next, as always.
Yes Brian. It's quite sad for me to see made in China when I live in Sheffield.
I run a French lathe from 1975, good ole gal too, the original 3 jaw is on it still, but the jaws are somewhat worn, it is a Cazenueve hb575, i did have a Brit Dean Smith 1978 a lathe well before its time but alas the ways needed doing, I sold it for 3500 Au rebuilt they are fetching moonbeams
Chinese steel has flooded Australia. It is garbage. They can even make round bar that isnt round.
Love the old British machine tools. The machine I built my company from nothing with is an old Elliott Concord lathe. Pretty pisspoor compared to a DSG but it was cheap and available and got me further than I ever imagined.
Very impressive. Love that set up.
Glad to see you trued up a spot for the steady rest. I usually true up a spot near the chuck as well to the same size diameter, incase I have to flip it around. And for something to indicate off of later. That wood always helps to soak up chatter as well.
I like the ambient steampunk sounds from 1:54-2:30. Your huge shop amazes me
Yes... we play some nice tunes. 👌
Dave , that would have to be one of the best large dia boring videos that i have seen . I wish i knew about the support block idea years ago when i had to bore the spindle of a Ward 10 through the entire length . Cheers .
The wood holds size brilliantly.
@@userwl2850 are we rely not getting that wood piece slowly eroded in such a fashion that tolerance is lost? What if the project requires a 5m deep pipe. Can it be done in principle with the same method?
@@aion2177 I'm currently making a video on that exact thing buddy. YES it does wear but there is a reason and a way around it. Keep watching and you'll see what I'm doing. 👏🏻👏🏻 good call 👍
I bet this shop is really liking you, its hard to find experienced machinists that really know what they are doing.
I'm fitting in well. 👍
Deep hole boring had always been a challenge - luckily in this case there's honing stock to get the bore dead straight, sometimes we have to hold it straight at the lathe!
From the title I thought he was leaving .005 for honing.
I've never seen that trick, using a self sizing block of wood as support/guide. Very neat.
Simple but works brilliantly 👍
Very nice and sturdy boring bar.
Superb.
Keep it up.
Nice. We used fixtures that slipped into prepped bores to secure the first 5 ' of a 17 ' boring bar and a tool located roughly 6 ' back. With this I could cut 300 on the diameter, taking about three-quarter of an inch in two ( knock on wood ) passes. We'd leave about 50 thous for honing on a 122" x 7.775" bore. Man, those Sunnen 210 would scream something fierce while ripping out the stock to a +/- 0.003 tolerance. Great fun.
I like the wear pad. We used two opposing pads on the much larger Niles boring lathes I ran. Your way seems much better, less setup time. It took us 6-8 hours to do a setup.
bravo usinage exemplaire avec cette outil une bonne finition pas de flexion excellent 👍🇲🇦 maroc
wao amazing work sir. love from Pakistan
Ahh - the wood trick again :). 5 thou tolerance is quite something to shoot for on work that size.
That's one heck of a nice finish Dave... chips look great, despite what appears to be quite a generous feed rate. Must be time for a few cups of coffee while those pieces get done!
Made in China eh - !!
Seeing made in China when I live in Sheffield is dull. Only thing I don't mind being made in China is my wife. 😉
Hola ....quería comentarle que el sistema para perforar barras grandes es impresionante .....gracias por compartir sus conocimientos.....
I see in the last video posted someone talking about you closing down your shop.
Seems like not much has changed for you ?
Except a steady pay check each week.
( which is something you miss when running your own shop )
It,s a shame you did not get to finish your Deep Hole Boring Machine project.
I hate when there are things in your life you wanted to do but never got to do.
But i guess life is like that.
I am sure the stress of running your own shop is not missing for you.
Good to see you can keep going doing what you enjoy to do as a job.
All the best to you, Dave.
Peter.
Thanks Peter. I've sold 4 machines now so no going back. Yes the craven I never got to use it... shame.
Perhaps this is the lad I seem to remember from a few years back making these trepanning tools where his mill looked like it had enough crust to have been reclaimed from the sea ? Ahh if so, hello again, and best wishes.
very impressive. Was always a mystery to me how we bore inside for such a deep hole :)
Excellent video.
Can you tell us what holds the guide block to your boring bar?
Just found your videos, brilliant watching how you tackle jobs.
With the wooden block is there a reason you place it on the underside of the bar and not opposite the insert, opposite the insert would make it easier to get of the chips as well.
Hi Brian. It has to be as is so the tool can't drop or dig in. But your thinking is right... opposite the insert is the most important. 👏🏻👍
that's a sad way to end the video my friend. too bad. Where i live, a 100,000 man tank factory closed down, and you bet they had their own foundary and make their own giant boring mills and lathes ...
It guts me to see made in China when I live in Sheffield
@@userwl2850 a few years ago I was in Fleetwood. It was the middle of winter with few people about. I decided to get some fish and chips and had to wait while it was cooked. The fish was frozen and taken from a plastic foam box; imported from France.
Another great video Dave. There is a rolling mill about 10 miles from my new shop but it mostly makes structural sections which I rarely use. Most of the steel I use is from China, India or Eastern Europe. Not by choice, that is what the local suppliers have. What type of wood do you use on the boring bars? Also, is it cut into an arc shape from solid or is it steamed and bent into an arc? Thanks, Ken
The wood is cut to suit the bar. Hope you had a nice Xmas Ken.
Great how to video David. Looks like I will get to use 316L type stainless Sch 80 pipe. (.500 wall) and bore/hone instead of the thousands of dollars to make from bar 27" long. There is a bit of money in this set up. Boring bar and support. I guess for this set up to work they must be aligned pretty much perfect otherwise as they get closer together it will kick left or right and up and down? The wood would stop it going down a bit I guess. Do you replace the wood support after each part even if all your parts have the same bore? If the chips are stringers does it tear up the wood? Not sure if I will get chips.
The "stringers" are a real pain. Try not to get one. I like 8mm to remove so a 4mm cut on 316... and chips well.
sorry you are quitting, i know how you feel , i quit small ship building, my plate rolls my overhead wheeling plate forming machine gone, getting old, mistake to sell tools, but, ah well, hope you are well Mr!!
Thanks buddy... it's been emotional.
@@userwl2850 yeppers especially seeing the Dean Smith depart, you'll find some peace later you'll see
@@stuarth43 I've brought it to the place I'm working now so I still get to use it along with my Bridgeport Mill. Can't work without both. Thanks for your comments buddy 🍺👍
Do you use micarta as the slide bushing that controls chatter ??? How much flex do you get when boring with your bar and what is the clearance inside the bar itself ??? Thanks David and peace....
It's a hard wood. No chatter and holds size brilliantly. Generally around 2" all round clearance. I use tufnol on the Trepanning Tools to hold size. Nice to have your comments. Thanks. David. 👍
Nice job
Thank you.
Cerulean machine operator, not a machinist big difference between a machine operator /but this machine operator is probably the best at what he does you can’t judge a good machine operator. The machine is conveyed his average with a machine operator because he’s good at a lot of machines he’s not gonna just one guy respect for both men
Very nice work
Neat, what holds the block of wood from spinning? Charles
465maltbie bolts probably
Nice lathe. It's just a bit boring. Boom boom. M
😉😂
I was expecting to see rifling when you showed the finished product (working in Sheffield and all), but I guess these are to be hydraulic cylinders?
Awesome work.
what did you use to cut the serrations on the face to cut the wood? angle grinder? also why two jaws painted yellow? thanks for the video again
I use a chisel and hammer. The painted jaws is for multiple jobs of same diameter.
Saudaraku... RPM spindle berapa yang anda gunakan?
Dan RPM peeding?
That really is a great way to do that sort of boring, I suppose the sticker in the pipe is amusing in one way but find it very sad in another, what’s this country coming to.
Al.
I hate seeing made in China but.... my wife was 😂
please advise about standard to confirm it mechanical properties still contain, like you have pipe sch80 and you boring to sch40.
Using the wood block as a support is genius! I'm assuming you're leaving it slightly oversize so it gets cut down as it enters the bore? I wonder if that trick would be applicable to more "conventional sized" boring bars as well.
Lindsay,
Excellent question. Self sizing internal support works well in this application given large size and the boring bar is concentric to work piece. My experience working with conventional boring bars is a lack of concentricity between tool and bore. Also there is typically a large difference between bore ID and bar OD. Fixing wood to the bar is an issue too.
Absolutely just make sure the chips can clear.
2:35 Like how you turned the tube into an improvised "drill". Did you do that manually with a hammer and chisel?
I was wondering how you made the tube cut the wood so cleanly without crushing it.
Doesn’t the wood swell as it gets wet and warm almost a hydraulic force? Or is it not wood but the cutter?
The wood is a hard wood
Doesn't the pipe get pushed to the main shaft while processing thank you
doesnt half make some harmonics when its cuttin
Hi Dave, nice boring technique, may i know how you stick that wooden piece
Screwed from the bottom.
It's great effort..
some heavy cuts! what was the feedrate and the depth of cut?
Feed rate was .020" with a 6mm cut
I thought you said half a thou i saw up to 8 thou differences marked on thoes cylinders 😳 you tellin fibbys in your vid title ! 😁.
The markings where for the outside steady bands. 😎
@@userwl2850 ahhh i see my bad buddy sorry 🙂👍
Hi Sir
Could you teach us how to make this boaring tool and where to fit it??
It's excellent technology.
I'm currently making a video. 👍
David, the label does not surprise me at all, the entire world has been captured by low prices and we've become very much a throw away society because of it, much to our detriment.
I enjoy watching your videos, those older lathes certainly have the extra iron and built to last quality to do the work you do.
Is the tool advance screw driven or hydraulic for your trepanning work?
Regards from Australia.
Nothing hydraulic on this machine Dennis. Yes.... very strong build. 👍
How does one prevent a scratch line from the tool when retracing the tool after finish boring? Or is the tool deflection so minimal it doesn't leave a line?
Good question. Yes it does leave a scratch line but nothing really. I will show that in a video. Thanks. 👍
@@userwl2850 hi David, nice, looking forward to that! Great videos!
Great performance.
Do you ever get swarf chips embedded in the wear pads ?
Is all well?
What kind of wood is the boring bar bearing made from.
Any hard wood works.
How can it hold to .005" ?
The wood holds size.
Hey bro is that wood or fiber . please
Tell me
It is hard wood. 👍
@@userwl2850 thanks bro
wood wood wood wood - how many times does he have to say it? Hard wood ok! Hard wood.
What wood species Dave ?
Or does it even matter, I wood think a softwood wood swell from the soluble oil & raise the tool height a bit , changing the bore diameter slightly ??
I initially thought u were using tufnol... but woods a LOT cheaper 🙄😂
Thats a good "bite" ... is there a skin on the bore ? 🤔
😎👍☘🍺
Any hard wood will do. I tried to talk them into using tufnol but dammmmmn... it's really expensive when you get to this size. 😲👍
ગુડ વર્ક
Well done bravo
Looks like a "wood reamer" used for semi finishing cannon barrels for a hundred years.
Why that wood used
What is the swing and length on that lathe?
The steady is max 22" and the longest I've bored on it is 100" long plus the tool.
What kind of wood?
Any hard wood works
@@userwl2850 Thanks for answer! :) Have you tried it with hardened metal support pieces? The wood is ofcourse more simple since theres no need for adjustment.
@@HH-Machining on some tools for deep hole boring the support pads are carbide. Look on my channel to see the high precision 103.80mm flat bore drill video.
@@userwl2850 I gave that video a look when it came out ;) I assume that those carbide pads are set exactly for the bores diameter? Or how much clearence it needs?
Muy buen trabajo !!!
Too great 👍.
Why is that rope on steady please
is knowing conventional machine must for cnc
Ravi Chandel - Not really a “must”. However learning on a “conventional” / manual machine and transitioning to a CNC would be a better path than starting on a CNC. It would allow you to learn and understand the fundamentals of machining and how different materials and sizes react under different conditions. In my experience though, there’s not many people out there that understand both. Just my 2 cents!
No...you are not pre conditioned to the ways of conventional machining.
Not a must but helps
Do u know what 0.005mm is??
In
Yes.... teeni... tiny.. .. very small.
Loved it.
Was this the lathe you fixed about a year ago? And what is the function of the wooden block?
The wood holds size.
@@userwl2850 do you use the lathe carriage to auto feed the bore? Is it this a convention or a special lathe? Cheers and Happy New year!!
@@therealspixycat it was a lathe. Tool post and tailstock removed and a carrier made for the toolpost. Happy New year to you. New video tomorrow.
@@userwl2850 great. Thanks. I saw after posting the question an older video which showed clearly the construction. Thanks!
Good job...👌
Very good
Whst kind of boring bar it is. Which insert u r using to cut it? Can u plz upload pic
SNMG 19.. common insert.
How many psi do you think you are using to push the cutting tool?
I have no idea 🤔
Hopefully the Chinese steel has improved from what it used to be. Last time I made a hydraulic cylinder like that it held size all through but the concentricity looked like a piece of rope. LOL Bloddy CMM
Ss mettreail id 250mm and long1200mm kaise turning kre
Do u khow what is the 0.005 mm telorance???!!!
0.005 mm chenges with blank tempratur and you can not creat this telorance
But this is not 0.005 mm but 0.005 inch, the " sign means inch.
0.005" (inch) = 0.127 mm, and this is possible to get on the lathe.
What are they for?
Gas pipes.
I’m surprised gas pipes need that internal precision, great job though
I would LOVE to see these cylinders being capped. Do you have any footage of capping?
Sorry I don't.
Mantaplah
Nice
Put up your company name there’re are people who need your services please are you in uk ?
Harikaaaa.
Thank You!
UNOS GENIOS
0.127 mm de tolerancia, para cilindros hydraulics
Going to be honed!
Location
0,127 milimetros
روعة
Yep .Morris our Magic. I bet the cutting tips were from China as well .Probably the only part of this made in Sheffield David is you .
😉😂 I only use sandvik.
@@userwl2850 and where is the Sandvik factory located?
New shop???
I'm currently working for someone.
Yes I’m in Rotherham we get same from China
A+++
Noice
I wouldn't consider 5 thou to be fine tolerances.
On a hole that big and long?
It's going to be honed to final dimension . . .
In any case - who are you?
@@gyrogearloose1345 What does it matter who I am?
A very difficult question @@BedsitBob !
Alguien me prodria. Orientar para que el uso de la madera
Accurate carbide wood boaring bar
Wood works brilliantly