PaulRainbow
Well-known member
The thread is about bending some 1" stainless tube with a hand bender, for Heavens sake.
Bending Stainless Tube
- Thread starter smithy
- Start date
rogerthebodger
Well-known member
The thread is about "bending stainless tube. The size is not relevant it about how tube can be bent.
Yes the method does depend on several factors the 2 main ones are the quality of the bend and the tightness of the radius of the bend compared with the diameter of the tube.
Just because you have bent a piece of tube with a hand bender does not give you and in depth knowledge of the subject.
As the saying goes "A little knowledge is a dangerous thing"
PaulRainbow
Well-known member
Almost as dangerous as a little 1970's knowledge.
The OP asks "Is it possible to bend 1" x 1.5mm walled tube on an ordinary floor standing conduit bender? "
I answered him with the suggestion that an old style Hilmor bender will do the job.
rogerthebodger
Well-known member
I still keep up to date. In the 1970's it was only stick welding and mechanical cutting of metals, today we have laser or plasma witting and TIG and MIG welding which I still use and have most of my stainless laser cut as need be.
Electronics and PC were just coming in .I had my first PC in 1976 and was staring to use PLC's and electronics to control mechanical systems/equipment
Paul you have no knowledge of my experience an what I have been involved in so you assume a lot as your ego will not allow you to recognize any else have knowledge of a greater depth than yours. This is why you keep chirping at me and others who challenge you view point.
If you put your ego aside you may learn something.
You gave him incorrecct advice because the OP asked "if a floor standing bender will ben 1" stainless steel". floor standing will NOT as you later posted.
The old style Hilmor bender is a floor standing bender and as you said you had to bolt it down to bend the tube so the answer to the OP's question is NO and as the Hilnor bender is a floor standing bender the answer is still NO
I have the same equipment the OP purchased and when I need bigger tube bending I go to a small local engineering company who have bent 50mm 1.6 thk stainless steel tube when I was making my stern goal posts as on my web site. All my hand deck edge safety rails are 38 mm dia 1.6 mm 316 also bent by a local company.
So don't you link I still live in the 1970's I have Engineering experience from 1962 (age 15) when I started work in an Engineering company in Smethwick in the West Midlands.
Stand alone if you tried to bend and 1 " stainless tube the resistance to the bending load would tip it over. As you found you needed to bolt it down and using the feet the support tubes would tend to bend unless you put extra support. . This is what electricians used to use to bend steel conduit and plumbers would use to bend copper tube. Most conduit is now PVC so ease to bend on a bender like this.
Not stainless steel tube. needing a quality bend.
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PaulRainbow
Well-known member
I realise it's a new concept for you Roger, but just for once, try reading what's been posted.
Let me help you, here's what i actually posted, i've made some text a little better, so you don't miss it:
"We used to bend 1 1/4" T45 aircraft tube with mine. Needed three people hanging off of a 2m scaffold tube to do it, we had to bolt the bender to the floor, and i'm not exaggerating.
I bent some handrails for may previous boat, from 1" 16g stainless, using a 1m tube extension on the handle, on my own, with the bender not bolted down, easy as pie. "
See above, if you need bigger text, let me know.
One last time, not bolted down for 1" stainless. My bender has a set of heavy steel formers and with the bender bolted down for 1 1/4" T45 (not stainless, stainless is like bending cheese compared to T45) and three people on a scaffold tube, the bender tubes did not bend.
I'm not the only one to have bent 1" stainless with the old Hilmor bender, see post #21
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rogerthebodger
Well-known member
You don't get a University Degree without being able to read and more importantly comprehend what you are reading.
You don't get nominated for membership of a professional Engineering institution without reading/ comprehending and applying what you have proved you can apply to other existing members of that institution.
So what you are saying is that your little experience in bending a couple of pieces stainless thin wall tube than some one who has getting on for 60 years Engineering design experience with direct experience of designing tube bending equipment for a professional (paid to design equipment by a long standing Engineering company part of a major UK Engineering Groupe of Companies) Engineering Designer.
Its you who keep talking about using a Professional to install equipment so don't you need a Professional to design the equipment of does the design just appear from thin air.
You may be a Profession (paid) installer of electrical equipment do the people who design the equipment you install not have experience like you.
Also if you can bend a small thin tube for a hand rail or hoops for a cockpit cover you consider yourself and expert in Mechanical and Electrical Engineer .
You also consider anyone who has been educated in the theory and practice in a subject at a University to have limited value and th person who installs the equipment are the experts.
Now you don't say this but its what you mean.
You need to stop insulting people when you cannot get your own way.
As you had said to me before stop digging.
You don't get nominated for membership of a professional Engineering institution without reading/ comprehending and applying what you have proved you can apply to other existing members of that institution.
So what you are saying is that your little experience in bending a couple of pieces stainless thin wall tube than some one who has getting on for 60 years Engineering design experience with direct experience of designing tube bending equipment for a professional (paid to design equipment by a long standing Engineering company part of a major UK Engineering Groupe of Companies) Engineering Designer.
Its you who keep talking about using a Professional to install equipment so don't you need a Professional to design the equipment of does the design just appear from thin air.
You may be a Profession (paid) installer of electrical equipment do the people who design the equipment you install not have experience like you.
Also if you can bend a small thin tube for a hand rail or hoops for a cockpit cover you consider yourself and expert in Mechanical and Electrical Engineer .
You also consider anyone who has been educated in the theory and practice in a subject at a University to have limited value and th person who installs the equipment are the experts.
Now you don't say this but its what you mean.
You need to stop insulting people when you cannot get your own way.
As you had said to me before stop digging.
PaulRainbow
Well-known member
That's all just your usual deflection Roger and it's not what i said at all.
I said the Hilmor bender will bend 1" stainless, i know this because i have one and have bent 1" stainless with it. I don't need a degree to know that and i don't need to be an expert in tube bending, which is good, because i'm not and have not claimed to be one.
The Hilmor bends 1" stainless, end of.
I'll leave you to continue on your own, i'm sure you can argue without any help from me.
rogerthebodger
Well-known member
The gospel according to Paul Rainbow.
You have have bent 1" stainless steel tube do that mean the every one can and must buy a hilmor bender when there are much better pieces of equipment to do the same job as the OP and I have.
Now you can have the last word.
DownWest
Well-known member
Why don't you two find a room and chat it over with some beers?
Personally, don't need no pigging bender, just do 1" with me bare hands.
Personally, don't need no pigging bender, just do 1" with me bare hands.
rogerthebodger
Well-known member
I offered to take him and his "friend" sailing but the offer was not accepted.
As far a visiting the UK with the level of Covid in the UK no thanks.
The issue is that you get some people who think they know it all. My view is that every one has their experience's and I am pleased to learn from others but some just don't like being being wrong. When you are a designer every one criticizes you after the fact but cannot come up from a blank piece piece of paper.
To be frank I'm too long in the tooth to really care but it can be entertaining.
smithy
Active member
If I can interrupt the arguing for a minute gents and answer DownWest's comment. The tubes not flattened its just the way the lights catching it. The bends are all pretty consistent. This was a "cheater" bend, it's used for calculating the sizes and makes it really easy, I learned this from an excellent you tube video where the guy was making roll cages.
rogerthebodger
Well-known member
I would not expect much tube flattening with that tube diameter and the radius of the bend.
If you measure the dia of the tube at the center of the bend and compare with the diameter at the straight tube you may see a little but not enough to matter or be really visible.
Jason14
New member
did you get your arch completed?
smithy
Active member
All tacked together just got to weld it up properly
smithy
Active member
I said I would post the result when all finished so here it is. What I did learn was TIG welding was not as easy as it looked on you tube. With the use of flap and and polishing wheels the end result was quite acceptable. I even had enough tubing left to add a couple of rungs to the steps using the bender to shape the bottom one.
Molteni
Member
I just asked a local metal fabricator to do the job on 25mm S/S tube for a solar gantry. 4 "bends" cost £30
Daydream believer
Well-known member
I have one of those, Had it for 40+ years - it has cast iron formers though, not aluminium-.will bend 1 inch stainless tube that the OP started the thread about with ease. No need to bolt anything down, No need for extension handles other than the standard ones supplied, The only problem is if the leg length hits the floor in which case one has to make adjustments.
PaulRainbow
Well-known member
That's what i said in post #4. I still have mine, also with cast formers.
D
Deleted member 36384
Guest
Smithy,
Sheridan Marine's split jaw canopy bar clamps, clamped round the push pit would be more secure than the tabs. I think you will find the tabs for the aft poles cracking over time, assuming they are welded on.
Canopy Tube & Frame Fittings - Page 2 - Sheridan Marine
BlowingOldBoots
Sheridan Marine's split jaw canopy bar clamps, clamped round the push pit would be more secure than the tabs. I think you will find the tabs for the aft poles cracking over time, assuming they are welded on.
Canopy Tube & Frame Fittings - Page 2 - Sheridan Marine
BlowingOldBoots
PaulRainbow
Well-known member
If you zoom in on the picture you'll see that's what he has used, although it's not clear if the are the split clamps or not.