thx for all the advice guys! i did build my board this winter, finished (sorta) in january. props to my dad for all his help and expertise. This was actually a school project in a drafting course. i designed the board and then had to produce it. my friend made a long board with his veneers. www.forloversofwood.com
aight so basically i took my 1/16" wood veneers which were ~1' wide and cut and fit them to produce my 39cm wide board (the bottom is 3 pieces for example). the joints are offset so the board won't have a weak line right down the center.
i originally planned for only 4 layers but ended up going with 5. the entirety of the board is a minimum of 3 layers thick. the middle of those layers has the grain running 90 degrees for strength. the top two layers are smaller to produce a flex pattern. each layer was glued together with about 200 grams of epoxy
i built a rocker table with concave to give my veneers shape.
inserts were set on the 1st layer then holes drilled in the others. this kept all the pieces in place while i v-bagged them. i also put some glass patches around them inbetween layers 2 and three.
as for my v-bag setup it was def ghetto
i used some procured polyethylene (greenhouse plastic) and an old vacuum pump i had lying around the barn. we did a dry run to figure things out then went all in. rocker table and board went in the bag. we triple taped the seems, and made rather elaborate tape seal around the hose we simply stuck in. we hit a max of a bout -15 bar and it avereaged around 9-10ish. we bagged it pump running for around 3 hours the turned the pump off. in the morning there was still about 3 bar in the bag.
i wasn't really going for strength to weight but i wanted the shape mostly that a v-bag could give me.
i cut out my desired shape, sanded and then glassed top and bottom with 4 oz biax. the entire board is 5.7 pounds with glass.
the red parts are just stained (before the v-bagging and glassing). i am probably adding 2 more layers of glass on top because it is way to flexy for my likings. i wanted a stiff freestyle board.
overall i love it, and i can't wait to ride it. i learned so much and my dad and i are stoked to biuld another one too.
here is the kinda finished product it measures 129ish by 39ish has 4.3 cm of rocker a 4.5 mm concave :