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HOME MADE STEAM BOX

Project by FJDIII posted 94 days ago 671 views 4 times favorited 22 comments Add to Favorites
 HOME MADE STEAM BOX  HOME MADE STEAM BOX No-picture-s Click the pictures to enlarge them

Hello All,

This is the steam box that I use to bend the parts for the chairs that I am building. This box is quite a bit longer than it needs to be for my parts but I’m fine with that. I was just going from memory and pics of the steamer that was used at my classes which was shorter( 8’) and had a smaller diameter pipe(4”). Apparently my memory isn’t so good any more. I used a 10’ X 6” piece of schedule 80 PVC for the body, put a regular PVC 6×6x4” T in the middle and coupled it down to 1-1/2” to accept a piece of radiator hose which is connected to the water vessel. I use a propane camp stove for heat. The bolts that I ran through have a piece of conduit around them so as not to transfer metal marks to the wood during steaming. They are situated up at about half the diameter of the pipe. One end has a glued threaded fitting and the other end is a loose cap not glued. The pipe is pitched about 1/2” over its length and a 1/2” hole is drilled on the low end to allow excess water to escape. This was not cheap to build but I feel I will eventually recoop the cost in chair sales.

-- Fred.... Poconos, PA ---- Chairwright in the making ----


22 comments so far

View WhattheChuck's profile

WhattheChuck

71 posts in 98 days


posted 94 days ago

Hi Fred,

Are those vents running laterally along the pipe?

-- Chuck, Pullman, WA

View FJDIII's profile

FJDIII

96 posts in 348 days


posted 94 days ago

Hey Chuck,

Those are bolts that I had laying around so they are quite a bit longer than they needed to be. I did make the holes so that the bolts fit loosely so a minimal amount of steam does escape there.

-- Fred.... Poconos, PA ---- Chairwright in the making ----

View thetimberkid's profile

thetimberkid

1684 posts in 240 days


posted 94 days ago

Great job!

Thanks for the post

Callum

-- Look great, get your TTK merchandise now! http://www.printfection.com/thetimberkid/ Check out my site http://thetimberkid.blogspot.com/

View Jimthecarver's profile

Jimthecarver

225 posts in 323 days


posted 94 days ago

Nice Idea! Thank you for posting this, it will come in very handy in a future project.
How long do you steam the pieces and how long after steaming do you have to work with them?
Thanks again,
Jim

-- A duck that brags on his own pond, soon swims alone.

View Bigbuck's profile

Bigbuck

1050 posts in 201 days


posted 93 days ago

Very nice, looks simple and usefull.

-- Glenn, New Mexico

View FJDIII's profile

FJDIII

96 posts in 348 days


posted 93 days ago

Jim,

I am by no means an expert on wood or the amount of time that is required to steam certain species of wood, there is plenty of info out on the web to help you out with that. The pieces that I have steamed so far were red oak about one inch in diameter. It took anywhere from 30-45 minutes to get them soft enough to bend. This may vary depending on how much steam you produce. As far as how long you have to work with the wood, make sure that you have everything you need handy before you open the steam box. This will aide in making the transition from the box to the bending form smooth.

-- Fred.... Poconos, PA ---- Chairwright in the making ----

View Dick, & Barb Cain's profile

Dick, & Barb Cain

5395 posts in 837 days


posted 93 days ago

A very nice set up.

This should last you for many years, & it won’t take up much space for storing it.

-- -** You are never to old to set another goal or to dream a new dream ****************** Dick, & Barb Cain, Hibbing, MN. http://www.woodcarvingillustrated.com/gallery/member.php?uid=3627&protype=1

View kenn's profile

kenn

138 posts in 257 days


posted 93 days ago

You look like you are ready for some serious production now. I think you’ll be able to bend more than a few pieces in that set up. What I really want to see now is a photo of you splitting out that big red oak log – that’s some real work :) Good luck with the chairs.

-- Every cloud has a silver lining

View SCOTSMAN's profile

SCOTSMAN

539 posts in 122 days


posted 93 days ago

Are you not supposed to cover the pipe with insulation to prevent heat loss? Thats what I have always seen to date however your set up looks like a sensible approach that can be used again and again whenever needed regards Alistair

-- excuse my typing as I have a form of parkinsons disease

View Karson's profile

Karson

13635 posts in 938 days


posted 93 days ago

How big is your galvanised can and how long do you get steam from that setup.

-- Karson Southern Delaware karson_morrison@bigfoot.com

View FJDIII's profile

FJDIII

96 posts in 348 days


posted 93 days ago

Alistar,

The wall of this pipe is thick enough that insulation is not required. I don’t have to keep this steamer going for very long to get the parts I need soft enough to bend.

Karson,

The can is 5 gallons and there is a wood cork with a hole in the top for a funnel if there is a need for more water.

Kenn,

I really don’t mind the log splitting. The part that bothers me right now is having to borrow my brother’s dump truck to go pick up the logs that I score. I will have to purchase a dump trailer in the near future.

-- Fred.... Poconos, PA ---- Chairwright in the making ----

View FJPetruso's profile

FJPetruso

95 posts in 247 days


posted 93 days ago

That’s a real hot set-up.

-- Frank, Florissant, Missouri

View rikkor's profile

rikkor

8574 posts in 412 days


posted 93 days ago

Looks like a very well made set-up. Are those bolts just to keep the wood off the bottom of the steam chamber?

-- Maplewood, MN

View EEngineer's profile

EEngineer

85 posts in 151 days


posted 93 days ago

One thing I’ve never understood about steaming wood is the fact that you are adding moisture to it. After all the concerns I’ve read about drying wood enough to woork with it, it seems that steaming it would be going backwards. Do you have to kiln-dry the wood again after steaming and forming? Is there a minimum amount of time to wait after steaming and forming for the moisture content to lower again before you work it? Will it ever retiurn to the moisture content you had before steaming?

-- "Find out what you cannot do and then go do it!"

View stanley_clifton's profile

stanley_clifton

77 posts in 240 days


posted 93 days ago

I have to have one of these, so I hope you don’t mind me favouriting your project.

-- Stanley generally struggling

View FJDIII's profile

FJDIII

96 posts in 348 days


posted 93 days ago

Rikkor,

Yes, the bolts raise the wood up enabling it to be steamed uniformly.

EEngineer,

The wood that I am steaming making chairs is not kiln dried it is taken right from a log, it is then dried after steaming and forming.

-- Fred.... Poconos, PA ---- Chairwright in the making ----

View cabinetmaster's profile

cabinetmaster

121 posts in 95 days


posted 93 days ago

Great looking and very practical steamer. I will have to make one. Just what I have been looking for. Thanks for the info…...Jerry

-- A man can never have enough tools

View FJDIII's profile

FJDIII

96 posts in 348 days


posted 92 days ago

Jerry,

This post was for your question about steam boxes. I’m glad to hear it is something you can use.

-- Fred.... Poconos, PA ---- Chairwright in the making ----

View Patrick Oughton's profile

Patrick Oughton

13 posts in 392 days


posted 89 days ago

From a recent steam bending course I attended – you should allow 1 hour in the steamer (once at 100%) for every inch in thickness .

View WhattheChuck's profile

WhattheChuck

71 posts in 98 days


posted 87 days ago

Hey Fred,

Is your can for water just a steel gas can? What brand is it? I’ve been looking for the galvanized variety, and I only seem to find painted steel.

Chuck

-- Chuck, Pullman, WA

View FJDIII's profile

FJDIII

96 posts in 348 days


posted 87 days ago

Hey Chuck,

The can is a 5 GAL. called Old Ironsides. It is an old style gas can that doesn’t meet the safety standards of today so they are unable to label it a gas can. Luckily for me there was an old standby mom and pop hardware store in my old home town and I was able to land two of them. If you look on-line you may be able to find one but it won’t be easy. Happy hunting!

-- Fred.... Poconos, PA ---- Chairwright in the making ----

View Armystrong's profile

Armystrong

7 posts in 135 days


posted 84 days ago

Awesome post, very informative. My wifes gonna flip when I tell her, I want to build a stem box.

-- Les Forster, Minneapolis (Apple Valley) MN,

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