Hey ppl, here is my contribution to the forum.
This is my first home made board and I´ll explain rapidly it´s construction tecniques:
-2 glass fiber 200 gr layers (about 7 oz glass fiber each)
-Between layers one extra on the deck, for deck reinforcement
-PVC lightweight foam
-2 glass fiber 200 gr layers (about 7 oz glass fiber each)
It´s outlined from a North Jaime Pro M (128 x 38,5) but I gave it another shape with extra thin tips. Inserts for footstraps are in brass, they should handle it, they were fitted with epoxy resin mixed with micro spheres...a white powder to make the resin lighter and stronger.
Also, the glass fiber was done with epoxy resin, and the rails were finished with the mixture of the resin with micro spheres.
For the fins, when putting the inserts into the foam, boxes of mixed resin with powder were filled so that there´s a rock solid base to drill and compress with the screw.
In the end, the board was painted with spray paint and it is just for testing phase...in case it handles good on the water, there may be space for varnish or a new paint job.
Without fins, as seen in the pictures, I have weighted the board and it goes near 2,4 kgs (about 5,3 Lbs). I think it´s pretty light.
Rocker looks more than enough but concave is a bit shallow.
Almost forgot to mention, this construction leads to a light but weak board since it doesn´t have much glass and a strong core. Don´t recomend big air landings on this one
Any doubts or suggestions, don´t hesitate.