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StevenBauer
05-11-2010, 01:33 PM
I needed a quick steambox for the shearstakes on the Humblebee Pram I'm building so I used the same technique I used making our toboggan years ago. I started with an $11 sheet of foam insulation:

http://i146.photobucket.com/albums/r241/bauerdad/Building%20HumbleBee/IMG_3749.jpg?t=1273602413

Scored some lines on it and folded it into shape:
http://i146.photobucket.com/albums/r241/bauerdad/Building%20HumbleBee/IMG_3750.jpg?t=1273602466


http://i146.photobucket.com/albums/r241/bauerdad/Building%20HumbleBee/IMG_3751.jpg?t=1273602523

Then wrapped it with some duct tape:
http://i146.photobucket.com/albums/r241/bauerdad/Building%20HumbleBee/IMG_3753.jpg?t=1273602577

For steam I used a 1 gallon paint can and a 2' piece of 1" hose:

http://i146.photobucket.com/albums/r241/bauerdad/Building%20HumbleBee/IMG_3759.jpg?t=1273602630


A couple of rags stuffed in the ends and I was steaming away:
http://i146.photobucket.com/albums/r241/bauerdad/Building%20HumbleBee/IMG_3758.jpg?t=1273602731

StevenBauer
05-11-2010, 01:35 PM
The planks bent right on easy as:

http://i146.photobucket.com/albums/r241/bauerdad/Building%20HumbleBee/IMG_3760.jpg?t=1273602850

http://i146.photobucket.com/albums/r241/bauerdad/Building%20HumbleBee/IMG_3763.jpg?t=1273602913


Steven

ssor
05-11-2010, 01:40 PM
When you are through with the steam box you can convert it to flotation.

woodrat
05-11-2010, 01:49 PM
when I tried this for a steambox, the insides of the foam panels came all apart and collapsed into the center of the box. I ended up just making another one out of wood. I wonder why yours survived the heat and mine didn't.

Canoez
05-11-2010, 01:51 PM
when I tried this for a steambox, the insides of the foam panels came all apart and collapsed into the center of the box. I ended up just making another one out of wood. I wonder why yours survived the heat and mine didn't.

Steam runs cooler this time of year in Maine. ;)

woodrat
05-11-2010, 01:55 PM
Steam runs cooler this time of year in Maine. ;)

Of course. I don't know why I didn't think of that! :o

Canoez
05-11-2010, 02:00 PM
Of course. I don't know why I didn't think of that! :o

Sorry, Woodrat - couldn't resist. :D

Two things are going in Steven's favor here actually - one is the foil lining, the other could be the variety of foam that he has here. Some building foams stand up to this kind of heat and others, well, don't. If you look at the manufacturer's specs on the foams you will see that some have higher service temperatures before they turn to mush.

woodrat
05-11-2010, 02:08 PM
yeah, mine was foil backed on both sides, too, I'm figuring it must have been the wrong kind of foam for that application. That's all there was at home depot, though, and I didn't look into it in detail.

no offense taken, of course! ;)

Hwyl
05-11-2010, 02:10 PM
. I started with an $11 sheet of foam insulation:








Then wrapped it with some duct tape:


For steam I used a 1 gallon paint can and a 2' piece of 1" hose:




A couple of rags stuffed in the ends and I was steaming away:


You forgot the costs of the duct tape, paint can, hose and rags. Where was the heat source, did you use solar?

Pathetic I tell you.

(serious now) So that's the whisky plank

StevenBauer
05-11-2010, 02:49 PM
You forgot the costs of the duct tape, paint can, hose and rags. Where was the heat source, did you use solar?

Pathetic I tell you.

(serious now) So that's the whisky plank

Cost of rags? Around here those are free. :) Paint can and hose $3 and $6. But those aren't the steambox, now, are they? ;)

Hey! The whiskey plank! Why didn't I think of that? I think the only whiskey I have is the Glenmorangie I got for my birthday. Now I've got to go find a glass. :D

Here's a close up of the paintcan and hose setup. Fire is the one burner butane stove we use on the boat. The hose is duct taped to a stick to straighten it out. (Free from the scrap pile):
http://i146.photobucket.com/albums/r241/bauerdad/Building%20HumbleBee/IMG_3765.jpg?t=1273607187

I also used some chopsticks (free) to hold the plank up off the bottom of the steambox.


Steven

JimConlin
05-11-2010, 03:55 PM
Sheer resourcefulness! :D

Hal Forsen
05-11-2010, 04:01 PM
Sheer resourcefulness!
AKA
Yankee Ingenuity ;)

Lew Barrett
05-11-2010, 06:21 PM
This exceeds my budget. Isn't it possible to do this job with some real economy? Eleven buck for foam! I can make my own foam out of PL construction adhesive and used microballoons!

StevenBauer
05-11-2010, 06:28 PM
:D


You're right as usual, Lew. I should've found the foam at the dump and done it for free. ;)



Steven

the1andonlyalt
05-11-2010, 06:48 PM
Hi Lew. I have some used microballoons if you need them. Some clown though used them before me. They are all in the shapes of microballoon dogs, giraffes and hats.

Alt

Lew Barrett
05-11-2010, 09:10 PM
:) :)

ssor
05-11-2010, 10:04 PM
Do you remember that Ken Hutchins used continuous plastic tube like like bag stock before cutting and sealing.

kenjamin
05-12-2010, 08:09 AM
Nice work, Steven. The pram is looking pretty darn good too!

StevenBauer
05-12-2010, 08:46 AM
Do you remember that Ken Hutchins used continuous plastic tube like like bag stock before cutting and sealing.

Ken also used the old oil fired boiler from his house. :eek: I don't think my little butane stove could put out enough steam to just use a plastic bag.



Steven

JimConlin
05-12-2010, 09:41 AM
Do you remember that Ken Hutchins used continuous plastic tube like like bag stock before cutting and sealing.

The poly tube is called "lay-flat" in the bag biz and it's available in a variety of widths and weights. It's also excellent for vacuum bagging.
I get it from Associated Bag (www.associatedbag.com).