Found the remains of an ancient windsurfer up in the shed roof.
Pondered on what to do with it for a while, it's an old moulded urethane blank with lots of big air bubbles on the bottom.
Thought of a 50cm board for yoyo, but we decided it'd be too heavy, so I eventually talked myself into a 38cm speed board.
Used a layer of 10mm closed cell blue styrofoam to bridge the airbubbles, and 2oz glass underneath the corecell, then 2 layers of 4oz on opposite bias. + of course some 6oz carbon around the impact areas.
So far it's 5kg fully glassed, paint, sugar deck and straps will add a bit more.
The wobbly centre line is because there's 3 of them, 1 on the board and one on each layer of glass.
The angled lines are along the weave of both layers of cloth to help me line up the biased weave.
When I did the top, I thought I'd be even cleverer and use a colour for one of the layers so I could tell which layer was which. Trouble was the blue ink in the chemy pen I used dissolved in the epoxy! Then I realised I'd put the top layer on at the same angle as the bottom after I'd started to wet it out. So the wet soggy layer had to come off, get turned over and somehow put back on without most of the guide lines.
Luckily I had Pas to help me, thanks mate, would have been a real struggle on my own.