The first step is gathering the matirials 1x 80cm andd 18mm by 18mm wide strong andd stiff wooden stick then you need a 5cm wide 35cm long multiplex board cut in 3 ddifferent lengths 2 times 5 by...
This technique of 3D printing the wing ribs to hold a true aerofoil shape worked out super well! Combined with foam sheets, packing tape and the lightweight wooden spar, it performs amazingly well!