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View Full Version : Cheapskate's bending iron



Dougf
12-22-2011, 04:59 AM
Since I already had the galvanized vent pipe, this setup cost about $10. Seems to work pretty well on the thin pieces, about 1/16" thick.

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gokidd
12-22-2011, 05:43 AM
Wow! Very cool. Err ... hot!

dave g
12-22-2011, 05:48 AM
That's essentially what I use (mine's a little more fancy, but not much :rolleyes:).

gyosh
09-10-2012, 05:24 PM
I thought you weren't supposed to breathe in fumes from heated galvanized pipe/metal? (Eighth grade metal shop.)

saltytri
09-10-2012, 05:52 PM
I've always thought that is a hazard of welding galvanized metal. Check this out:

http://www.osha.gov/doc/outreachtraining/htmlfiles/weldhlth.html

"Inhalation of zinc oxide fumes can occur when welding or cutting on zinc-coated metals. Exposure to these fumes is known to cause metal fume fever."

Bending is done at around 300F, and both gas and electric welding are done at several thousand degrees.

gyosh
09-10-2012, 05:57 PM
I've always thought that is a hazard of welding galvanized metal. Check this out:

http://www.osha.gov/doc/outreachtraining/htmlfiles/weldhlth.html

"Inhalation of zinc oxide fumes can occur when welding or cutting on zinc-coated metals. Exposure to these fumes is known to cause metal fume fever."

Bending is done at around 300F, and both gas and electric welding are done at several thousand degrees.

Good point. 8th grade metal shop was 35+ years ago.:)

saltytri
09-10-2012, 06:13 PM
Ah, so many good things were 35+ years ago!

Doug
09-11-2012, 05:44 AM
What wattage is the bulb?

ksquine
09-11-2012, 07:58 AM
Nice!! Even cheaper than mine. I splurged on a flange for the pipe so I could get more clearance around the pipe and get a more comfortable working height.

gyosh
09-11-2012, 08:12 AM
Out of curiosity, what diameter pipe did you guys use?

spookefoote
09-11-2012, 08:18 AM
I've often thought isn't it a little dodgy having a wet piece of wood near to mains lecky in the form of a light bulb? Or am I missing something?

Liam Ryan
09-11-2012, 08:31 AM
I use a gas torch to power my pipe but if I was using any sort of mains powered electric heat source the first thing I'd be doing is earthing the pipe.

Dougf
09-11-2012, 03:29 PM
What wattage is the bulb?

200 watts. I wouldn't claim it worked great, but it worked. I might try steel pipe with a blow torch next time.

ksquine
09-12-2012, 08:04 AM
Out of curiosity, what diameter pipe did you guys use?

That pipe is 1-1/4" (that's standard NPT steel water pipe from the hardware store. The actual outer diameter is more like 1-3/4") Its a good size for bending uke sides and the union fitting at the end fits my heat gun perfectly.

Rick Turner
09-12-2012, 08:21 AM
You'd be better off using brass, copper, aluminum, or stainless steel to prevent staining of the wood. Steel, even galvanized, is likely to cause pretty deep black and blue stains in many woods. Also there are heating elements that screw into standard ceramic light sockets.

Michael Smith
09-12-2012, 08:51 AM
The first one I made was a 2 inch pipe with an electric barbeque starter. It works well and is still going strong. You need to carefully crimp the barbeque starter a little to fit it into the pipe. It might work better to crimp an aluminum pipe into an egg shape with a heavy vise. The barbeque starter would then fit in easily and you would have different curves to bend on which is desirable. You need a dimmer with a barbeque starter or it will get too hot.

Liam Ryan
09-12-2012, 10:23 AM
I use a gal pipe and have have zero staining on any piece of wood I've put near it.

ModlrMike
09-12-2012, 02:30 PM
I was on the Rockler site today and saw this:

Steam Bending Kit and Plan (http://www.rockler.com/product.cfm?page=30714&site=ROCKLER)

So I thought... this has potential. Then it dawned on me that I have a clothes steamer that I could probably McGyver into service.

From what I've read, I don't actually need a heated bending assembly. Could I steam the wood and then clamp it in the form to dry overnight?

urcuzzn
09-12-2012, 03:21 PM
4287242871here is a setup i use for demonstrations42870

ukulian
09-13-2012, 10:29 AM
My version uses a heat gun. The tube has some steel wool in it to prevent the heat going straight through.
42885

hawaii 50
09-24-2012, 03:30 PM
4287242871here is a setup i use for demonstrations42870


Hey Peter is that a picture of you?
you look way younger than i thought ha ha>> and you look more "Local" than i thought too..we are about the same age..hope things are well with you