yes , but also consider where the load is coming from , forces against the fins, just general surfing , depending on what side is in compression , all layers through to the other side will be in tension,also you remove shear movement,
that makes stiffness…
im not willing to show my lay up …but your definatly heading in the right direction…
yep , glass between every layer…
remember that the outer skin will have the most compression to deal with…
use materials that have high compressive qualities…including resins…
inner layers are under no compression at all … use high tensile materials…
i have 25gram cloth in use , thats less than 1oz…consider weave styles…some are stretchier than others…other fabrics as well , it doesnt have to be glass…
with all those materials and the knowledge of how to use them it seems that you can achieve all sorts of flex/stiffness patterns. It just wouldn’t be possible to do that with a conventional board without compromising its durability. Remarkably i think there are a lot of swaylockians who don’t realise what you are doing and lump both epoxy sandwiches and epoxy monolithics (conventional) all into the same category.
im not willing to show my lay up …but your definatly heading in the right direction…
regards
BERT
you’ve already revealed enough information for the more determined sandwich building hobbyist to make good use of, so no need to hand it to us on a plate. might be a good thing to force us to think and come up with our own solutions too
i’ve incorporated some of your ideas into my latest 2 sandwich projects
Have you ever tried wrapping your blank with cling-wrap to attach stuff to the rails? I did a blank once by taking rocker-slices from a 4" piece of blue foam stood on end, then glued them up side by side. I wrapped the whole blank with a roll of saran wrap, putting tension on each wrap, and going over the whole thing several times. It built up an amazing amount of pressure, and it was perfectly even. It doesn’t apply pressure to the deck or bottom, so it won’t work like vac bagging, but I think this may prevent twisting issues as well. Also, after I cut it off, the cling wrap made a nifty little drop-cloth!
I’m so stoked to have someone here that REALLY knows his s#&t. I like the addition of the photos. I’ve got to get a camera. And a new computer that attaches. I think I’ll go shopping.
I love the photos too, but just one suggestion: On those closeups, there’s probably a little button on your camera that does macro shots. Mine’s a Canon and the close up button has a little flower on it. When you hit that button it lets you take shots as close as two inches with crystal clear focus. Not that I’m complaining, but it’d be nice to see the detail you’re trying to point out on the closeups.
Greg, I’m using my Sprint camera phone on hi resolution. Disavantages are many, but I always have it with me, it’s all the resolution you can use to post here, you can view them in miniature on your phone, and you can upload and email a decent size picture to any address. It has a flash and a 15 sec video.
I’m not allowed to have a real camera, so I’m happy with this one.
oregan peter ,thats funny , sometimes when im taking photos , i think hm , you can see to much…so i get back a bit so some detail is lost…then just cut the section of the photo i want,
so if there is stuff you cant see , there could be a reason…
also the flat screen makes a massive difference to resolution as well …
could it be that???
yea thanks greg , nice compliment ,hopefully you guys will get familiar with all the concepts, then i will have people to relate to about it…
either way , i get a buzz out of watching interesting variations of different techniques appearing…
