I worked as an equipment operator at a DuPont film plant years ago and worked out of the Millwrights shop. One of the head millwrights ended up being a family friend and was always building something for the inside of the plant out of stainless and it might be 20 or 30 feet long and he had to hold 2 thou. It never ceased to amaze me how he did it. Most always he never knew what it was until he went inside to install it. He did heat and drawing like you do. It is an ART! Still amazed! Good workmanship!
Keith. You're awesome. I have watched about 50-60 videos so far but they are the most informative and educative I have ever seen. You're positive about everything. You're laughing when you get to the hard point. Seems like there is no job difficult enough you cannot do. Keep up the Good Work. We are all waiting for more, and more, and more....
Just came across this video, Oct. 2016. Funny & interesting to see the 'younger' you Keith. Love the ethical manner of doing business. Using skills to repair a problem, saving money and endearing customers at the same time. Bravo.
Hi Keith Fenner This is my first comment on any of your videos. I'm sure many others have said this, but as a guy in my 40's - I would apprentice at your shop in a heartbeat. I wish your videos were required viewing for ALL (Academic and Technical) Students in High Schools! If they were, I think Canada and the USA would (once again) start to take Pride in producing Quality, repairable products - meant to last a lifetime! *After watching a bunch of your Videos, all I can say is 'wow'*! You have a Professional attitude for the precision of your work. Plus a Businesslike attitude to completing jobs - what I mean, is that you look at the big picture from Both the perspective of: your time and profit, and from the Customer's perspective. You know your customers, and you know the prices (and longevity) of 'reworking' versus 'buying new'. A couple of examples are on the Videos of the "Fence Company's cut-off saw" - the work (and workmanship on those sleeve/bearing repairs (which I never would've bothered with once the metal was compromised); and the 'Municipal Water Pump' video (when you were given a 'stop' - but still did a beautiful job on the repair - including 'rodding out' the water ports on the seals - that showed pride in your work.). My only Question for you on this particular video ( _unlike everyone else....it's _*_NOT begging you to "tell me secrets" how you straighten shafts_*_ - quickly enough to make Bank_ ).....is: *Why the Heck do You NorthEasterners keep putting the Propeller Nuts on the Shaft In the Wrong Order?!!??." It's the Thin Nut that goes against the Prop....THEN the Long Nut, last*. At least that's how I do it. (here in the Pacific NorthWest - where the water is too deep to dive on a lost prop). Oh, and a 'little outfit' called the "US Navy" does it 'my way' too: NavShipsTechManual - Chapter 075-5.3.4, Fasteners. So there.... *I make the comment about 'the nuts*' (somewhat) *just to make you smile - and get your goat*! I've been around 'boatyards' long enough to KNOW what 'my crazy ideas' are worth (however well-founded) - compared to those of the Owner of the Yard! So, I appreciate that Even if "You know Different"...you may just bite your tongue and save it for a different battle. :-) Cheers! And thanks for the Videos... Happy 2015! Dave.
THAT shaft noise must have been nearly as entertaining as a dryer load of bowling balls! And hey, A+ for the style and "core business" expertise this time. More than a few of us (I'm sure) dial onto you for the scope and depth of amazement, Keith. So cool...
my boss does heat straightening on pump shafts and it is impressive. gets em within .0005 for the boiler feed pumps and within .001 for regular pumps. it is a skill that i wish to acquire as i understand that is an art and a skill that is to be protected. IMPRESSIVE. Keith you are a master craftsman and i do know that you are proud to do what you do. THANKS FOR THE VIDEOS and GETTER DONE
A lot of workers will screw you over. And it's either because they are lazy, want to make more money on your back or simply don't know what they are doing. I'm really happy to see there still are guys out there like you who hold true to their values and the job right. I tip my hat to you good sir.
Keith, you are an amazing man! God what talent! This is what's wrong with this country, too many lazy people, especially young ones, not learning a skill. We're taught to hurry and get that degree so you won't have to get your hands dirty, now we're in desperate need of dirty hands. We've lost skill and the willingness to be the best at a chosen craft or trade. I love watching you do amazing things!
Did a lot of that kind of straightening when I worked in heat treat. Everything came in from lawn mower cranks to go kart axles plus my regular work (company) Every once in a while you get a 'snake' and it won't come out no matter what you do. You can also use a ball peen hammer and an anvil if you have enough grind on it. Surprising it usually stays and doesn't move back. Keep it up-I get a lot of new ideas. Thanks
If you press a shaft to straighten it it will spring back somewhat if tapped or banged! Heat straightening sets the memory, where you want it to stay! Some people are in business to sell shafting and some are more suited for repairing customers problems. ;{)---
Your video was excellent. It showed me that I can get the bend out of the shaft as I was planning on mild heat and beat the metal into submission. It was by the time I saw you expand the key I was just ... the dude knows metal. It also helped me a bit in how the balanced coupling is put together so I do not screw the balance nuts up pulling the shaft. Thanks.
You are a real professional! I really enjoyed watching this lesson. I work at a shipyard, and have witnessed a contractor service a prop shaft that was about 2 feet in diameter, how about that! Thank you for this video.
The material alloy in Aquamet, except the grade 17, is such that it can take the little pin point heat spots or even a weld fusion, without a annealing or normalizing. The spots are polished away with scotchbrite or paper to match the rest of the shaft with no later difference as it ages.
If you ever desire to have a class on this process and have everyone sign a contract that protects your business and the knowledge shared would be amazing. I am in NC and have always wanted to learn this art for my local area. If you desire to train or share this craft, I would pay for your time and work with you to learn. Thank you for your wonderful clips, they are a lost art.
@bob385100 No, the integrity is not compromised when straightened. Keep in mind there are limits, mostly cost wise, like starting with a pretzel shape...
Nice job, I use to straighten stainless pipe shafts with heat in much the same way. I see the spots where you applied the heat. I'm impressed, you got it running very close, Tom in Seattle
Good job Kieth. Glad to see something going on out on Nantucket. I wasn't sure anybody really lived there. Ha! I lived at Popponesset back in the fifties. Pete
good vid and a man like me help the customer out when you can as I did today on an aluminum ford shaft new 700$ straightened and balance 225$(I HATE ALUMINUM LOL)
They are a set of home made trunnion style shafting rollers I made back about 20 years ago. I plan on making a video sometime on how I did that. ;{)-----
@bob385100 Weakening a shaft by heat straightening is only a myth, in fact all Aquamet material, with the exception of A-17, is able to have a "Weld Fusion Overlay" process done without having to be stress relieved. This process is a weld build up then machined back to original diameters and usually done on shafts with worn surfaces in critical areas. That process causes a much greater degree of temperature than that used in heat straightening.
Gday from Australia,have to say after watching a few of your videos that you taste in music is great but moving on,you are right ,a lot of the time, refurbishment is quicker and easier as the part was from the job and will fit exactly the place it came from. Sometimes new has to be fettled and fitted to work and it also is good for the reputation when people can see how good you are! lol Cheers Ross
Funny seeing this, we ordered a 12" 3/4 spade drill that was shipped to us running out 1/8th of a inch. After beating on this thing for 30 minutes in a lathe we decided to try using our arbor press. Me and my boss ended up putting 4 thousand pounds on a 5/8" shaft for the material to move and stay.
That's a great video . Exactly what you said at the beginning is what I learned in auto body class in collage. I was wondering how you were going to straighten it then I saw the heat spots . I've never tried that on a shaft before. Thanks for the great videos . :)
The shafting is priced by the pound and adjusts with the market, so it is a matter of shaft size and length. The machine work for a taper and key is also determined by the shaft size. Most small marine shafting, 2" and under, if material is in house can be made with a same day service, granted there is not a line of work ahead of your project. I have in the past without any interruptions, completed 6 same day shafts, on a Friday, during peak boating season and ran about a 9 hour day. ;{)-----
You are the second person I have seen straighten a shaft with heat.There was an old guy in this area of western North Carolina.He could straighten saw mandrels and the track that the carriage rides on for saw mills.Him and his helper was all that was allowed at the sawmill while he worked even the owner was not allowed to watch.He tool his secrets to the grave.
Cracks develop in shafting because of loose fits and slamming the key in the keyways against the shafting keyway, the Aquamet materials are some of the most strongest, corrosion resistant, torsional loadable shafts on the market, but brittle when it comes to the hammering. With that said bends are not what the crack testing is focused around. That was a very good question. Sometimes after machining keyways you have to straighten the taper, very rare to get, runout exceeding, tolorences. ;{)-----
Great all of my earlier videos were done on my boat shafting and talents, giving you all of those answers to your questions. Thanks for the comment. ;{)-----
Hi Keith, that's what being a crafts man all about, Great job I work for a boatyard that builds luxury yachts around 100' We had a customer in that ran aground and bent a shaft, I remember it being out about 0.0012 that's a lot less than 1/8" lol and they said we can straighten it but remember that Stainless Steel carries a memory so they sold him a new shaft. Now does SS carry a memory and gets bent again by the slightest ding?
Thanks for the videos! I do have two questions: If this work brings you the bread on the table, then why are you doing it outside? And Maybe you should explain to some of the viwers what these marine parts are for? Where they go, what they do and why does it need reapirs. I have no experience in "boat stuff" and would be interesting to learn a few random sidefacts. Keep up the good videos!
I seem to have started a fire storm. I did not mean any disrespect. We have seen Keith repair worn bearing journals & lapping props. I thought that showing how to straighten a shaft was the next step. I apologize if i caused any problem. I didn't think watching Keith straightening a shaft would give away any trade secrets. it woulds be like someone watching me drive a truck, it doesn't mean that they could drive one they would probably wipe out a car on their first right hand turn.
I purchased new cold rolled steel plate 1200mm x 150mm and 10mm thick for purpose to be ways for my diy metal lathe. But they in the shop catted that piece with big machine scissors, and it got distorted all the way by length uniformly, that has about 5mm deviation on the middle. How to straighten this to be reliable for my purpose?
Would be nice to know the dollar amounts involved. 50% savings is quite substantial when you're talking thousands. But if you're talking hundreds, a new one might be a better option.
Hello Keith, I have been trying to straighten a Small crankshaft for a triple steam engine with 3/8 journals,, do you it is bent about .004 what do you think about using heat to straighten or is it too small I use a 00 tip and make blue heated areas with no results . I used to be a crank shaft grinder and used to straighten shafts within .001 before blueprinting for dragsters and offshore racing were we would grind in larger radius's but use a press and a Big chisel with a Large radius on the end This was a Friend of Dema Elgin Aec Ryals
you may need more than a quick small spot to move steel, the S/S moves with ease but some steel can be stubborn. Sorry it so long to get back to your question. ;{)-----
Maybe cool same quickly using a wet sponge... thus dabbing same but you don't want to stress the material all depends what metal it's made from, it could be forged from rolled steel... or else cast from Ductile Cast Iron... if its the latter your are dealing with a different ball game there, my friend....as you don't want to change the composition of the material or shock that little crank....best wishes with same..
Keith, How do you maintain the same material phase across the whole shaft when you are doing your localized heating. Are you able to heat and set without causing the steel to undergo a phase transformation or undergo accelerated aging with respect to the rest of the shaft? Thanks for your response?
Keith, what are the blue cradles with rollers called to rest and roll the shaft in during your runout check? I am trying to check runout on a disassembled outboard prop shaft and don't have access to a lathe. Thanks
Keith, Can you tell me the name of the red fluid and the wite powder to search cracks? I was searching it lately but not one of my suppliers know what i mean.
It's because most of the idiots running around in these boats don't have the very first clue as to what makes them run and what it takes too keep them running. Like you said they worry about the cost of the bling but dont think at all about the zing.
Wow dude, I do much of the same work as you do, but I can tell you are a true pro. There aren't many guys that make it look as easy as you do.
I worked as an equipment operator at a DuPont film plant years ago and worked out of the Millwrights shop. One of the head millwrights ended up being a family friend and was always building something for the inside of the plant out of stainless and it might be 20 or 30 feet long and he had to hold 2 thou. It never ceased to amaze me how he did it. Most always he never knew what it was until he went inside to install it. He did heat and drawing like you do. It is an ART! Still amazed! Good workmanship!
Keith. You're awesome. I have watched about 50-60 videos so far but they are the most informative and educative I have ever seen. You're positive about everything. You're laughing when you get to the hard point. Seems like there is no job difficult enough you cannot do. Keep up the Good Work. We are all waiting for more, and more, and more....
Just came across this video, Oct. 2016. Funny & interesting to see the 'younger' you Keith. Love the ethical manner of doing business. Using skills to repair a problem, saving money and endearing customers at the same time. Bravo.
Hi Keith Fenner
This is my first comment on any of your videos.
I'm sure many others have said this, but as a guy in my 40's - I would apprentice at your shop in a heartbeat. I wish your videos were required viewing for ALL (Academic and Technical) Students in High Schools! If they were, I think Canada and the USA would (once again) start to take Pride in producing Quality, repairable products - meant to last a lifetime!
*After watching a bunch of your Videos, all I can say is 'wow'*! You have a Professional attitude for the precision of your work. Plus a Businesslike attitude to completing jobs - what I mean, is that you look at the big picture from Both the perspective of: your time and profit, and from the Customer's perspective. You know your customers, and you know the prices (and longevity) of 'reworking' versus 'buying new'.
A couple of examples are on the Videos of the "Fence Company's cut-off saw" - the work (and workmanship on those sleeve/bearing repairs (which I never would've bothered with once the metal was compromised); and the 'Municipal Water Pump' video (when you were given a 'stop' - but still did a beautiful job on the repair - including 'rodding out' the water ports on the seals - that showed pride in your work.).
My only Question for you on this particular video ( _unlike everyone else....it's _*_NOT begging you to "tell me secrets" how you straighten shafts_*_ - quickly enough to make Bank_ ).....is:
*Why the Heck do You NorthEasterners keep putting the Propeller Nuts on the Shaft In the Wrong Order?!!??." It's the Thin Nut that goes against the Prop....THEN the Long Nut, last*. At least that's how I do it. (here in the Pacific NorthWest - where the water is too deep to dive on a lost prop). Oh, and a 'little outfit' called the "US Navy" does it 'my way' too: NavShipsTechManual - Chapter 075-5.3.4, Fasteners. So there....
*I make the comment about 'the nuts*' (somewhat) *just to make you smile - and get your goat*! I've been around 'boatyards' long enough to KNOW what 'my crazy ideas' are worth (however well-founded) - compared to those of the Owner of the Yard! So, I appreciate that Even if "You know Different"...you may just bite your tongue and save it for a different battle. :-)
Cheers! And thanks for the Videos... Happy 2015!
Dave.
Been watching CZcams video for over ten years and never before subscribed to a channel. Love your channel
THAT shaft noise must have been nearly as entertaining as a dryer load of bowling balls! And hey, A+ for the style and "core business" expertise this time. More than a few of us (I'm sure) dial onto you for the scope and depth of amazement, Keith. So cool...
You got THAT right!!!
my boss does heat straightening on pump shafts and it is impressive. gets em within .0005 for the boiler feed pumps and within .001 for regular pumps. it is a skill that i wish to acquire as i understand that is an art and a skill that is to be protected. IMPRESSIVE. Keith you are a master craftsman and i do know that you are proud to do what you do. THANKS FOR THE VIDEOS and GETTER DONE
A lot of workers will screw you over. And it's either because they are lazy, want to make more money on your back or simply don't know what they are doing. I'm really happy to see there still are guys out there like you who hold true to their values and the job right. I tip my hat to you good sir.
Keith, you are an amazing man! God what talent! This is what's wrong with this country, too many lazy people, especially young ones, not learning a skill. We're taught to hurry and get that degree so you won't have to get your hands dirty, now we're in desperate need of dirty hands. We've lost skill and the willingness to be the best at a chosen craft or trade. I love watching you do amazing things!
You are a true professional and an honest man! Great video.
Very impressive straightening job. I hope very much you show how its done some day. Thanks for the video.
I did not see any straightening!!!!!!!!!!
Did a lot of that kind of straightening when I worked in heat treat. Everything came in from lawn mower cranks to go kart axles plus my regular work (company) Every once in a while you get a 'snake' and it won't come out no matter what you do. You can also use a ball peen hammer and an anvil if you have enough grind on it. Surprising it usually stays and doesn't move back. Keep it up-I get a lot of new ideas. Thanks
If you press a shaft to straighten it it will spring back somewhat if tapped or banged! Heat straightening sets the memory, where you want it to stay! Some people are in business to sell shafting and some are more suited for repairing customers problems. ;{)---
Your video was excellent. It showed me that I can get the bend out of the shaft as I was planning on mild heat and beat the metal into submission. It was by the time I saw you expand the key I was just ... the dude knows metal. It also helped me a bit in how the balanced coupling is put together so I do not screw the balance nuts up pulling the shaft. Thanks.
I have straightened a lot of propellers. Never any Prop Shafts. But this is amazing. I guess we all have a calling. Great job... Thanks..
You are a real professional! I really enjoyed watching this lesson. I work at a shipyard, and have witnessed a contractor service a prop shaft that was about 2 feet in diameter, how about that! Thank you for this video.
The material alloy in Aquamet, except the grade 17, is such that it can take the little pin point heat spots or even a weld fusion, without a annealing or normalizing. The spots are polished away with scotchbrite or paper to match the rest of the shaft with no later difference as it ages.
Its 12 years since you made that statement , " Its a little out of shape " , How profound .
Some good British bands on that radio. The shaft wasn't bad either.
Keith, Another great video. Would you be able to please do a segment showing the complete process of you actually straightening the shaft.
If you ever desire to have a class on this process and have everyone sign a contract that protects your business and the knowledge shared would be amazing. I am in NC and have always wanted to learn this art for my local area. If you desire to train or share this craft, I would pay for your time and work with you to learn. Thank you for your wonderful clips, they are a lost art.
As a machinist you sparked my interest I think I'm going to subscribe
If I had the money for a boat I'd sail halfway round the world to get this guy to fix it!
For sure your country have good machinists. It will be cheaper.
And now you’ve also got a customer for life!
@bob385100 No, the integrity is not compromised when straightened. Keep in mind there are limits, mostly cost wise, like starting with a pretzel shape...
Nice job, I use to straighten stainless pipe shafts with heat in much the same way. I see the spots where you applied the heat. I'm impressed, you got it running very close, Tom in Seattle
Good job Kieth. Glad to see something going on out on Nantucket. I wasn't sure anybody really lived there. Ha! I lived at Popponesset back in the fifties. Pete
A straight shaft is a happy shaft Great Job !!!
good vid and a man like me help the customer out when you can as I did today on an aluminum ford shaft new 700$ straightened and balance 225$(I HATE ALUMINUM LOL)
They are a set of home made trunnion style shafting rollers I made back about 20 years ago. I plan on making a video sometime on how I did that. ;{)-----
@bob385100 Weakening a shaft by heat straightening is only a myth, in fact all Aquamet material, with the exception of A-17, is able to have a "Weld Fusion Overlay" process done without having to be stress relieved. This process is a weld build up then machined back to original diameters and usually done on shafts with worn surfaces in critical areas. That process causes a much greater degree of temperature than that used in heat straightening.
Gday from Australia,have to say after watching a few of your videos that you taste in music is great but moving on,you are right ,a lot of the time, refurbishment is quicker and easier as the part was from the job and will fit exactly the place it came from. Sometimes new has to be fettled and fitted to work and it also is good for the reputation when people can see how good you are! lol Cheers Ross
Funny seeing this, we ordered a 12" 3/4 spade drill that was shipped to us running out 1/8th of a inch. After beating on this thing for 30 minutes in a lathe we decided to try using our arbor press. Me and my boss ended up putting 4 thousand pounds on a 5/8" shaft for the material to move and stay.
Talented Man... Good tunes too.
I would pay for that, cause I plan to make a living off - of a job shop,
Thanks for all the Videos.
That's a great video . Exactly what you said at the beginning is what I learned in auto body class in collage. I was wondering how you were going to straighten it then I saw the heat spots . I've never tried that on a shaft before. Thanks for the great videos . :)
Awesome craftmanship!!!!!
I also heard of people who shot peen or glass beads to straighten some items of other shapes besides round,
Alec
The shafting is priced by the pound and adjusts with the market, so it is a matter of shaft size and length. The machine work for a taper and key is also determined by the shaft size. Most small marine shafting, 2" and under, if material is in house can be made with a same day service, granted there is not a line of work ahead of your project. I have in the past without any interruptions, completed 6 same day shafts, on a Friday, during peak boating season and ran about a 9 hour day. ;{)-----
It is called Aquamet 22 marine grade shafting. It is of the nitronic 50 category!
;{)-----
Wizard! Please teach those kids out there pretending to be machinists.
This is the Great video and Great Job this really takes Talent on those shafts.
Keep the Great Work Up
Thanks for all your Great videos.
Alec
You are the second person I have seen straighten a shaft with heat.There was an old guy in this area of western North Carolina.He could straighten saw mandrels and the track that the carriage rides on for saw mills.Him and his helper was all that was allowed at the sawmill while he worked even the owner was not allowed to watch.He tool his secrets to the grave.
GREAT JOB !
Well done sir
Cracks develop in shafting because of loose fits and slamming the key in the keyways against the shafting keyway, the Aquamet materials are some of the most strongest, corrosion resistant, torsional loadable shafts on the market, but brittle when it comes to the hammering. With that said bends are not what the crack testing is focused around. That was a very good question. Sometimes after machining keyways you have to straighten the taper, very rare to get, runout exceeding, tolorences. ;{)-----
You just gave "Refurbished" a new meaning.
I have local competition in the marine trade and showing my upper edge talents in straightening shafts would be foolish at this time. ;{)-----
That's right , us fools waiting around for the privilege of seeing zero
@tfp777 You got the just of it then... Kelly bars are real fun too, and grinding on the flats make it nice to clean up, minimizing scars...
Great all of my earlier videos were done on my boat shafting and talents, giving you all of those answers to your questions. Thanks for the comment. ;{)-----
Thanks for the comment! ;{)-----
Awesome. Just bought my first inboard and noticed it's not an original bronze shaft but a stainless one. I'm assuming that's better. 1975 Luhrs 280.
Thanks I wish I could see how it was trued.
OK...Thanks, Your video is very informative.
Nice job
It is made by Magnaflux, kit is called Spotcheck the die is SKD SP1 and the Developer is S2 ;{)-----
Hi Keith, that's what being a crafts man all about, Great job
I work for a boatyard that builds luxury yachts around 100'
We had a customer in that ran aground and bent a shaft, I remember it being out about 0.0012 that's a lot less than 1/8" lol and they said we can straighten it but remember that Stainless Steel carries a memory so they sold him a new shaft.
Now does SS carry a memory and gets bent again by the slightest ding?
Did the heating of the shaft require any special cooling to insure strength was not affected ?
Oh man... Keith looks so young in relation to his 2017 Videos... XD
@KEF791 I'm at San Francisco Ship Repair here in the Bay Area California.
for me it would be really interrested to see how you give this banana a straight line!! anyway thanks for all and your good videos
hey keith, sounds like you've got a decent radio station there. it sucks around here (rochester, ny).
Get internet radio, look up Radio Seagull and if you like oldies and don't mind dutch spoken word, radio 192.
Wow your the Wizard I would not have belived that shaft was savable. Is there anything you can't fix?
Thanks for the videos! I do have two questions: If this work brings you the bread on the table, then why are you doing it outside? And Maybe you should explain to some of the viwers what these marine parts are for? Where they go, what they do and why does it need reapirs. I have no experience in "boat stuff" and would be interesting to learn a few random sidefacts.
Keep up the good videos!
i wanted to see the actual hear straightening work done
I seem to have started a fire storm. I did not mean any disrespect. We have seen Keith repair worn bearing journals & lapping props. I thought that showing how to straighten a shaft was the next step. I apologize if i caused any problem. I didn't think watching Keith straightening a shaft would give away any trade secrets. it woulds be like someone watching me drive a truck, it doesn't mean that they could drive one they would probably wipe out a car on their first right hand turn.
Impressive!
If I was to do a video on how I straighten shafting, It would be a cost related video...
So many opportunities for jokes in this video. :p
Those are the spots of heat with the torch to draw the bend out!
;{)---
Thanks Kyle! ;{)-----
neat repair. do you roll the whole shaft on a flat surface to see all the bends or just the dial indicator?
Bronze Nuts are most common with marine shafting. ;{)---
Hey Keith. I watched three times to see how you straightened this shaft. But you didn't show how you did it??? Trade secret?
+Martin WaltersAs a non-machinist, if theres one thing I've learned from watching so many of your videos is how many ways you use a dial indicator.
I purchased new cold rolled steel plate 1200mm x 150mm and 10mm thick for purpose to be ways for my diy metal lathe. But they in the shop catted that piece with big machine scissors, and it got distorted all the way by length uniformly, that has about 5mm deviation on the middle. How to straighten this to be reliable for my purpose?
It's gratifying to see a man in business not bent on $cr€w!n6 his customers!!
LOL 😈
Too bent is when the material starts stretch and compress.
why havent you show us on in the video how you straighten it ??, with the brazer ?? thank you
Would be nice to know the dollar amounts involved.
50% savings is quite substantial when you're talking thousands. But if you're talking hundreds, a new one might be a better option.
I'd guess with 4-5 hours at a average Job Shop like his he's around 350$ or so plus a little bit for the new hardware.
Well I guess, if it's only going to be a few more dollars, wouldn't you want a new one ?. Hell I don't know.
those bloody cars, so loud
I'd pay for that.
Hello Keith,
I have been trying to straighten a Small crankshaft for a triple steam engine with 3/8 journals,, do you it is bent about .004 what do you think about using heat to straighten or is it too small I use a 00 tip and make blue heated areas with no results . I used to be a crank shaft grinder and used to straighten shafts within .001 before blueprinting for dragsters and offshore racing were we would grind in larger radius's but use a press and a Big chisel with a Large radius on the end
This was a Friend of Dema Elgin
Aec Ryals
I wish he showed how he straightened it.
you may need more than a quick small spot to move steel, the S/S moves with ease but some steel can be stubborn. Sorry it so long to get back to your question. ;{)-----
Maybe cool same quickly using a wet sponge... thus dabbing same but you don't want to stress the material all depends what metal it's made from, it could be forged from rolled steel... or else cast from Ductile Cast Iron... if its the latter your are dealing with a different ball game there, my friend....as you don't want to change the composition of the material or shock that little crank....best wishes with same..
Good job. Is the integrity of the metal less after straightening it?
Keith, I did not see the Video on your straightening technique :(.
He's got a few newer videos on it now.
Nice job. I need to do this also for small rails. was yours SEA RAY 2 X 80 ?
what was your bill to straighten this shaft?
Do you have someone in your family that you can teach your heat straightening? Someone needs to know that stuff to allow you to retire someday...
@theman4130 Cool, what shipyard are you working at?
How much does the shaft material cost? What does it cost or how long does it take to turn raw stock into a marine shaft.
Keith, How do you maintain the same material phase across the whole shaft when you are doing your localized heating. Are you able to heat and set without causing the steel to undergo a phase transformation or undergo accelerated aging with respect to the rest of the shaft? Thanks for your response?
exactly run the numbers...
So how do you heat treat a shaft, I noticed in your video those round dots here and there. Is that some sort of electrical pulls weld?
Keith, what are the blue cradles with rollers called to rest and roll the shaft in during your runout check? I am trying to check runout on a disassembled outboard prop shaft and don't have access to a lathe. Thanks
Keith, what are the blue roller blocks called and where can I get some? I've got a drill press spindle I want to check for runout.
Thanks.
They are my own design of trunion precision rollers, I made back in the 80's. ;{)-----
I know this is a older comment but I remember him selling them now as kits.
Keith,
Can you tell me the name of the red fluid and the wite powder to search cracks?
I was searching it lately but not one of my suppliers know what i mean.
You still working in shafts ?
My shaft is a bit bent to the left and the girlfriend says it hurts
It's because most of the idiots running around in these boats don't have the very first clue as to what makes them run and what it takes too keep them running. Like you said they worry about the cost of the bling but dont think at all about the zing.