Author Topic: pipe bending tips (Read 6833 times)

merlcrawl · « **on:** Oct 20, 2009, 09:10:34 PM »

http://www.hydraulic-equipment-manufacturers.com/gifs/hydraulic-pipe-bender.jpg with this bender i seem to have a problem with it kinking on tight bends. Would heating the bend with an acetylene torch work or would it just make the metal too hard resulting in cracking or breaking? Ive herd capping the ends with sand packed in the pipe works too, it just seems fetched. I sure wish i had a tubeshark

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88_Pathy · « **Reply #1 on:** Oct 20, 2009, 09:20:44 PM »

What are you bending with it?

merlcrawl · « **Reply #2 on:** Oct 20, 2009, 09:34:23 PM »

i tried some 1/8Th inch wall, inch n a half. Just bent a piece of scrap around the yard. i haven't got too much bending experience, its expensive to screw up lol. my welding teacher doesn't really go into steamfitting

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Steve_925 · « **Reply #3 on:** Oct 20, 2009, 09:55:22 PM »

edited for my stupidity.

check out this thread
http://board.marlincrawler.com/index.php?topic=44781.0

88_Pathy · « **Reply #4 on:** Oct 20, 2009, 10:01:00 PM »

That bender is for PIPE. So it will bend sch 40 great.

Talon84x4 · « **Reply #5 on:** Oct 21, 2009, 12:40:00 PM »

I've used mine quite a bit, and sofar the best bends i've gotten were when i filled the pipe with sand and capped the ends with duct tape. Sounds ghetto i know but it works

merlcrawl · « **Reply #6 on:** Oct 21, 2009, 01:18:57 PM »

Quote from: Talon84x4 on Oct 21, 2009, 12:40:00 PM

I've used mine quite a bit, and sofar the best bends i've gotten were when i filled the pipe with sand and capped the ends with duct tape. Sounds ghetto i know but it works

so just simply duct tape the ends works well? Ya i kinda assumed this bender is more so for structural steel

Snowtoy · « **Reply #7 on:** Oct 23, 2009, 01:05:05 AM »

The 1.5" die is a bit big for clean(semi-clean) bends, 1-5/8 tube works much better in the 1.5" die, same is true for all of the other dies. If you want to you could mill the 1.25" die to fit 1.5" tube, if you don't want to pay more for 1-5/8 tube.

The bender will work much better when you fill the tube w/sand/cap it off, and yes duct tape is all you need. Just make sure to tamp the tube to get as much sand in as possible, then let the tube sit in the sun, or heat the tube w/a torch.

merlcrawl · « **Reply #8 on:** Oct 23, 2009, 08:55:35 AM »

Quote from: Snowtoy on Oct 23, 2009, 01:05:05 AM

The 1.5" die is a bit big for clean(semi-clean) bends, 1-5/8 tube works much better in the 1.5" die, same is true for all of the other dies. If you want to you could mill the 1.25" die to fit 1.5" tube, if you don't want to pay more for 1-5/8 tube.

The bender will work much better when you fill the tube w/sand/cap it off, and yes duct tape is all you need. Just make sure to tamp the tube to get as much sand in as possible, then let the tube sit in the sun, or heat the tube w/a torch.

1-5/8 O.D.? wouldnt that be kinda small i was thinkin some two inch. My dad was tellin me its a PIPE bender measured by I.D., and you gotta find the pipe wall thickness to fit rite, he also was tellig me that you may be able to heat the bend up when your bending it basically suggesting sand isnt necessary?(ya'll got experiance so correct me if im off!)
i was probbly just gunna go with piping because its cheaper, prolly get some from a local scrap yard?

Snowtoy · « **Reply #9 on:** Oct 24, 2009, 01:17:02 AM »

Depends on what you are building. Most exo-cages, tube buggies, bumpers, sliders are all built w/1.5" tube. You can go w/2", but you don't need to. How you design the product has more to do w/its durability than the size/thickness of the tube.

He is also correct on the thickness of the tube. IME the pipe bender doesn't do to well once you get below .095 thickness. For my flatbed I used .120(1/8") wall tube.

Given the cost of tube, I went with the sand, that is how my Dad bent tube for his drag cars back in the '50's, and that is how his Dad did it in the 30's. Sand helps to reduce the amount of deformation of the tube during the bending process when using a pipe bender.

Pipe is more malleable than tube, so you don't need sand or heat, the pipe bender will work perfectly for you. People have built exo-cages, buggies, and bumpers from pipe, you might want to do a search here or on Pirate for the pro's and con's before going w/either pipe or tube.

illinoisyotadriver · « **Reply #10 on:** Oct 24, 2009, 04:19:52 PM »

yea thats what i did sand does help it keeps the tube from crushing

junya92toy · « **Reply #11 on:** Oct 24, 2009, 08:14:52 PM »

You needs to learn the difference between tube and pipe

Broke_Okie_Ty · « **Reply #12 on:** Dec 03, 2009, 09:47:41 PM »

Quote from: Snowtoy on Oct 24, 2009, 01:17:02 AM

WOW that is the coolest flatbed i have EVER seen

$Beer Chug\'n$

joey0712 · « **Reply #13 on:** Dec 03, 2009, 09:53:45 PM »

WOW you need to get out more!!!

Snowtoy · « **Reply #14 on:** Dec 05, 2009, 01:41:50 AM »

Quote from: Broke_Okie_Ty on Dec 03, 2009, 09:47:41 PM

WOW that is the coolest flatbed i have EVER seen $Beer Chug\'n$

Thanks.
I do more of excursion type wheeling over day trips and bring about 500lbs of gear(not including parts) so I needed something that would hold all of the gear as well as still have access to tools and parts while loaded. I guess it isn't really that much of flatbed, maybe I will start calling it a utility bed or Safari bed.
Here are a few more pics.

Broke_Okie_Ty · « **Reply #15 on:** Dec 05, 2009, 06:47:09 PM »

Quote from: joey0712 on Dec 03, 2009, 09:53:45 PM

WOW you need to get out more!!!

why do you have to be like that? i was giving him props on his work. i happen to think its pretty cool. so STFU and try to be a little nicer.

joey0712 · « **Reply #16 on:** Dec 05, 2009, 07:45:04 PM »

Ya ill work on that tomorrow in church.

89sastoyo · « **Reply #17 on:** Dec 08, 2009, 01:10:58 AM »

bahahah. that tubing doesn't even look like 1.5 looks like 1 3/4 like most cages are built from? I could be incorrect just thought... maybe since most cages are buildt with 1 3/4 and have some 1 1/2 every now and again.

Snowtoy · « **Reply #18 on:** Dec 08, 2009, 02:05:09 AM »

It is neither, it is 1-5/8" tube. The 1.5" tube doesn't fit the 1.5" pipe die, since the pipe is measured I/D and tube is O/D.

joey0712 · « **Reply #19 on:** Dec 08, 2009, 04:30:08 PM »

Quote from: 89sastoyo on Dec 08, 2009, 01:10:58 AM

bahahah. that tubing doesn't even look like 1.5 looks like 1 3/4 like most cages are built from? I could be incorrect just thought... maybe since most cages are buildt with 1 3/4 and have some 1 1/2 every now and again.

My whole inside cage is 1.5 Its so much easyer to work with then 1.75 at least i think...

swapped89 · « **Reply #20 on:** Mar 24, 2010, 09:27:17 PM »

do you really have high pinions front and rear?

joey0712 · « **Reply #21 on:** Mar 24, 2010, 09:29:10 PM »

Ya.... My rear driveline kept getting hung up on stuff..

swapped89 · « **Reply #22 on:** Mar 24, 2010, 09:30:42 PM »

got any pics? ive never seen a rear HP

joey0712 · « **Reply #23 on:** Mar 24, 2010, 09:32:30 PM »

They are pretty rare... I payed some coin for it.

merlcrawl [OP]

merlcrawl [OP]

merlcrawl [OP]

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