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Re: Skin-on-Frame: coaming bending advice
By:Mike Savage
Date: 5/30/2009, 6:39 am
In Response To: Re: Skin-on-Frame: coaming bending advice (Brian Lemin)

: Are you comfortable with your steam generation and steam box? Bending is more
: than wood thickness.
: Your box must generate at least 95 degrees C. I would suggest each piece for
: say 10 minutes. longer is not better. And once you get it out of the box,
: work as quick as hell! Have it all set up and ready to go.

: PS I found a babies warming thermometer in a cheap shop. It did the job well.
: Just poked it through a hole drilled in the box!.

: I also had to have TWO heat sources to get the required steam temperature. I
: used an electric fry pan with the controller set at max (10) as the water
: source and the lid to start the "Chimney" to the box, then I
: used a camping gas burner under the fry pan! You do this at your own risk.
: I know others who have done this infact that is how I got to know about it.

Hi Brian,
I've used the open flame water heating method before but with wet "steaming" ie. a pan of boiling water for bending coaming timbers. Kinda dodgy in the safett stakes. I haven't used it for steaming as I was losing too much heat between the boiler and steaming box.

A Wagner wallpaper steamer is a cheap, effective way to do steaming for ribs and coamings. The hose is kept coiled unless I actually need the length to keep my garage free of clouds. ;) The coil is rested on an old wool blanket to keep it off the ground, the hose is thermally shielded already but every little bit helps. My steaming 'box' is a length of heavy PVC piping,(which will flatten if unsupported) in a bed of dry sand. The sand keeps the heat in fairly well and supports the 'box' to minimise the mentioned flattening.
A piece of squiggled wire keeps the timber off the bottom of the pipe.

One interesting advantage of the wagner is that I can spot heat timber if needed. Wrap the area to be spot heated in cloth with the end of the steam hose in the wrap. A 'wet' version of a heat gun.

Hope this helps,
Mike Savage
South West Cork

Messages In This Thread

Skin-on-Frame: coaming bending advice
Michael -- 5/28/2009, 1:02 pm
Re: Skin-on-Frame: coaming bending advice
Michael -- 5/29/2009, 12:03 am
Re: Skin-on-Frame: coaming bending advice
Brian Nystrom -- 5/29/2009, 12:09 pm
Re: Skin-on-Frame: coaming bending advice
Bill Hamm -- 5/29/2009, 2:07 pm
Re: Skin-on-Frame: coaming bending advice
Michael -- 5/29/2009, 2:56 pm
Re: Skin-on-Frame: coaming bending advice
Brian Lemin -- 5/29/2009, 9:25 am
Re: Skin-on-Frame: coaming bending advice
Michael -- 5/29/2009, 12:31 pm
Re: Skin-on-Frame: coaming bending advice
Bill Hamm -- 5/28/2009, 3:28 pm
Re: Skin-on-Frame: coaming bending advice
Brian Lemin -- 5/29/2009, 10:24 pm
Re: Skin-on-Frame: coaming bending advice
Mike Savage -- 5/30/2009, 6:39 am
Re: Skin-on-Frame: coaming bending advice
Brian Lemin -- 5/31/2009, 12:40 am
Re: Skin-on-Frame: coaming bending advice
Bill Hamm -- 5/30/2009, 11:06 am
Re: Skin-on-Frame: coaming bending advice
Kudzu -- 5/28/2009, 1:11 pm
Re: Skin-on-Frame: coaming bending advice
Ken Blanton -- 5/28/2009, 3:55 pm
Re: Skin-on-Frame: coaming bending advice
Kudzu -- 5/28/2009, 11:22 pm