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chiloschista posted a topic in Builders WorkshopHi ensemble, it is some time now I'm building those planks to experiment airfoils, wing geometry, mould buildings, foam cutting, elastoflaps etc. The last one came out of the mould just today: Trisel #5, the Eco-Trisel. It is made of 200g/m² flax, satin fabric. I liked the idea of doing a vegetal based fabric fuselage, as a little satisfaction about non petroleum based things. At first I would like to use vegetal based epoxy also, but it takes one week to cure (yes, one week!). So one thing at a time. Laying those fabrics is not really easy. Wetting it is the most difficult part, because they seems always dry, so epoxy amount has to be monitored carefully. I tried for the first time a "green trim", to avoid bubbles at joinings, when closing the mould... ... and discovered it is so hard to cut. I destroyed my hands doing that (me little crybaby ), and I have right, good tools. I did not use any gelcoat. The surface has some pinholes, as the fabrics tend to absorb a lot. The next one will have a transparent gelcoat base. At the end I am almost satisfied of this experiment: - I learned something new - I have an Eco, non petroleum based plane (not really, epoxy is still petroleum based). Am I the first ? - the look of that plane is really nice. I will leave it naturally Best regards, Ric P.s.: I have nothing against petroleum and will continue to build fiberglass and carbon fiber planes, but I like to have an alternative