I sent the written plans for the Steam Box to Dan Vadas. It's a steam box not a water boiler. It is designed to pressurize steam and force it into the center of the wood making it completely soft. Not wet or just soft on the outside. The goal is to bend the wood and have it dry before you install it. This way you won't have splitting, splintering, and frame warping and twisting as wet planks dry after installation. That is why you clamp the wet wood into pre made jigs until dry. I usually do about six at a time in pairs so each side of the hull is identical. This only takes 24 hours or so. If you have lots of clamps and jigs you can do more at one time. This is very accurate and a great time saver. I've been building ships for close to forty years now. ( on and off ) My other interests often took over my modelling time. A great deal of this time was spent inventing and collecting the tools required to do this in a timely, efficient and accurate manner. Sorry this forum won't permit me to upload my file. Send me your e-mail address and I'll send you a copy.