Howlor
|
| posted on 12/2/07 at 10:10 PM |
|
|
Tube Bender
Evening all!
I am starting a new project and require a tube bender to bend 32mm and possibly 50mm tube.
How successful are the jack style ones you see on ebay?
Does anyone have one I could try first in the Yorks area at all?
Many thanks,
Steve
|
|
|
|
|
jambojeef
|
| posted on 12/2/07 at 10:27 PM |
|
|
No good in my opinion!
If you're after nice constant radius bends in thinish walled tube for exhaust - Ive found them hopeless every time with a Machine Mart hydraulic
bender!
THicker walled stuff is better but not too thick or it wont work at all - me and Liam tried to do some 50mm dia. 3mm wall CDS and it wouldnt touch it
until the very last minute where it kinked it massively - see my photo archive.
That was a bit pessimistic wasnt it?!
Maybe you'll have more success!
|
|
|
mark chandler
|
| posted on 12/2/07 at 10:44 PM |
|
|
Okay for scaffold pole, any thinner and the tube will kink.
Mind you I have never tried filling thin tube with sand.
Regards Mark
|
|
|
marc n
|
| posted on 12/2/07 at 11:16 PM |
|
|
hi steve
dont bother wasting your money unless you are bending 3mm wall upwards it will crease like hell, you need to find a draw bender or a like the only
thing is with no mandrel you are looking at bending round a big radius if you are on 1.5mm wall or less
best regards
marc
please email rather than u2u
direct workshop email ( manned 8am till 6pm )
www.mnrltd.co.uk enquireys to :-
chrismnrltd@btinternet.com
|
NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
|
zetec7
|
| posted on 13/2/07 at 05:48 AM |
|
|
We tried all sorts of ideas, but none worked. We finally went to a repair shop out at the airport & found someone there with the appropriate
bender for 50mm tube. It turned out perfect, and didn't cost much...
http://www.freewebs.com/zetec7/
|
|
|
John Bonnett
|
| posted on 13/2/07 at 09:36 AM |
|
|
For one off jobs it is very often more cost effective to hire. This is what I did to bend up the roll cage for the trials car. £600 to buy but £40.00
for the weekend.
John.jpg)
|
|
|
Johnmor
|
| posted on 13/2/07 at 11:05 AM |
|
|
tube bender
I have a hydraulic Pipe bende, no use for tube or anything wiht less than 3mm wall.
I was considering buying this form the US.
Its about $900 bucks ,but it seems to be the Dogs boll@*ks
|
|
|
Minicooper
|
| posted on 13/2/07 at 12:01 PM |
|
|
I imported one of these works perfectly, the carriage and import taxes double the price though
Cheers
David
|
|
|
pk
|
| posted on 13/2/07 at 01:05 PM |
|
|
What dies did you buy - I'm interested in the logic for tube size and bend rad selection?
|
|
|
Minicooper
|
| posted on 13/2/07 at 01:11 PM |
|
|
quote:
Originally posted by pk
What dies did you buy - I'm interested in the logic for tube size and bend rad selection?
I bought 30mm, 1 inch and 1.5 inch, the clr is about 4 inch on the smaller dies and 5 inch on the 1.5 inch
|
|
|
ruudbeckers
|
| posted on 13/2/07 at 05:46 PM |
|
|
Perhaps you can make your own bender. Have a look at :
http://www.blindchickenracing.com/To...bingbender.htm
http://www.metalwebnews.com/howto/tu...be-bender.html
You only need to buy the dies. Unfortunately they are quite expensive :-(
Or buy a complete bender at:
http://www.pro-tools.com/200.htm
|
|
|
nick baker
|
| posted on 14/2/07 at 08:04 PM |
|
|
So glad i saw this thread: I was about to shell out for a cheapo hydraulic tube bender.
Maybe time to make a better one instead.
Incedentally.. I love the way that the $900 one pictured has "Percision" parts... 
|
|
|
timf
|
| posted on 15/2/07 at 10:51 AM |
|
|
a nice home made item plans here
some one on there has mode some dies for birch ply and have managed to do a very good job
A prisoner of war is a man who tries to kill you and fails, and then asks you not to kill him."
- Sir Winston S. Churchill, 1952
|
|
|
Peteff
|
| posted on 15/2/07 at 12:15 PM |
|
|
I have a few of these sites in my favourites and there are some who have made dies from hardwood with metal plate bolted either side and had good
results with them.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
|
|
|
liam.mccaffrey
|
| posted on 15/2/07 at 06:45 PM |
|
|
do you think that would be sufficient for thinwall stainless tube eg 1.4mm?
Build Blog
Build Photo Album
|
|
|
Minicooper
|
| posted on 15/2/07 at 09:42 PM |
|
|
quote:
Originally posted by liam.mccaffrey
do you think that would be sufficient for thinwall stainless tube eg 1.4mm?
Depends on how tight the radius is and what size the tube, I have no problem bending 30mm o/d 1.6mm tube at the clr of 4 inches
I have one of these
http://www.pro-tools.com/105.htm
Cheers
David
[Edited on 15/2/07 by Minicooper]
|
|
|
liam.mccaffrey
|
| posted on 15/2/07 at 10:19 PM |
|
|
sorry i meant would the plywood sandwiched between steel plate be sufficient for 1.4mm stainless or mild
Build Blog
Build Photo Album
|
|
|
ruudbeckers
|
| posted on 18/2/07 at 11:17 AM |
|
|
I was also thinking of making my own dies. I need some dies for a 1-7/8 inch tube. And when I look at a tube of 2 inch with a wall thickniss of 1.6
mm, the 1-7/8 inch pipe would almost fit right into it. So when I buy a U bend of 2 inch and would cut it in the middle over the entire lenght, I
would have the correct shape for my die. Now I only would have to weld some extra steel plates in the middel for strengt and my die would be ready.
So what do you think, will this work??
|
|
|
liam.mccaffrey
|
| posted on 18/2/07 at 07:49 PM |
|
|
i had similar ideas with making dies
Build Blog
Build Photo Album
|
|
|
timf
|
| posted on 19/2/07 at 08:38 AM |
|
|
you could always make a laminated steel die by having a series of thin steel plates cut to the correct size and then sandwiched together all you have
to do then is to find a high pressure filler material to shape the contour of the die
A prisoner of war is a man who tries to kill you and fails, and then asks you not to kill him."
- Sir Winston S. Churchill, 1952
|
|
|
blakep82
|
| posted on 19/2/07 at 09:52 PM |
|
|
got a machine mart one, worked for me!
I used a pipe spring inside the pipe and it didn't kink at all. sand it another option
|
|
|
NS Dev
|
| posted on 26/2/07 at 01:29 PM |
|
|
Well....................
 
tube bender
+
 
tube anneal
=
 
main hoop
 
main hoop 2
That's 45 x 2.5mm CDS, and a 15 tonne hydraulic bender used carefully, after annealing the normalised CDS tubing.
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
|
|
|
12a RX-7
|
| posted on 2/3/07 at 09:27 PM |
|
|
here's another option www.jd2.com I bought one from a UK supplier (yet to be delivered) rather than take the hit of tax and shipping.
|
|
|
blakep82
|
| posted on 6/3/07 at 09:17 PM |
|
|
not the best picture, but the top wishbones were done with the clarke 12 ton hydraulic pipe bender, in 1" tube with a pipe spring
inside
 
Rescued attachment DSC00344.JPG
|
|
|
blakep82
|
| posted on 6/3/07 at 09:19 PM |
|
|
sorry, the pic is huge, and now i can see a possible weakness in them 
|
|
|
