Wood runabout cnc files4/7/2023 It would be possible to pop the bottom off the jig turn it over and glass inside. If I was to pop it off the jig then foam or balsa would be lighter. The glass/epoxy is primarily for moisture control but also helps controlling thickness of wood, it's kind of a hybrid core-glass/ and monocoque technique anyway. The outside could be completely glassed but the inside skin would have to break under every frame as it can't be glassed continuously with frames on the shell. My original intention was to avoid temporary having temporary frames, particularly as I wanted to use the (ply) chine flat to tie the jig/egg box/mould together. That Bolger boat is remarkably similar to what I had in mind shape wise. Thanks very much for the really useful responses. If the frames are permanent is it ok to 'tab' them to the cedar shell and glass in the squares between framing? There will be no continuous inner shell glass under the lines of frames and longs? Can anyone see any problems with mixing methods e.g ply and strip cedar? I anticipate the frames, longs and topsides being ply, however to get the shape I would like the bottom to be strip cedar. I would like to make a self jigging kit of frames and longs to add the shell to. It has a vertical stem and deep forefoot developing aft to 12 degrees at the transom. I have lots of experiencing of 'kitting' aluminium boats as it was my old job, so that bit is OK. I'm designing the hull and will be creating the plywood CNC files to 'kit' the design, primarily to make it easier for me to build. I'm looking at building a 18ft runabout / skiff / commuter, along the lines of the PT Skiff / Eco18 Marissa.
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