A while back , somebody posted a picture of a “Jules Verne” , inverted boat-like trailer , done with strips ... Probably the original inspiration for the FoamStream (haven’t been able to find it since) ... For my particular situation , that could easily be done with strips of foam , narrow strips along the curved areas ... filled in with spray foam , then sanded to shape and covered... Still seems like a Lot of work ...
Since only half the distance of the sheet foam height on the FS has to be kerfed’, that and the kerfs are 10’ long , the simple hot wire ‘kerf plane” will be quick and efficient ... for me ... Not too messy just leaving long V shaped strips of foam to recycle or move to the skip... And the kerfed foam will be Smoothly rounded on the exterior... no extra sanding (shaping) before putting the canvas on
... another consideration that’s come to mind lately is some extra reinforcement of the roof ... Why ? Just “because “ ... (It’s complicated ! ) The thought was to add an extra layer of TOUGH reinforcing material over the top third of the cylinder (roof) Could be a polyester mat , fiberglass glued with the chosen covering adhesive , kevlar , carbon fiber mat .... many choices , but the idea is just to add a bit of extra strength (puncture resistance ) to the top... Foam is easy enough to patch , but the smaller the damage , the easier the patching .... Just trying to consider “possibilities” ... Wouldn’t increase the weight much , but would increase the “confidence” , especially here, out in the woods with many trees that seem constantly to shed limbs ...
