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Premium Member Comment by Matthys on May 12, 2010 at 21:35

ye, pete, i get what ur saying with the foam.
adam, i had that idea as soon as you mentioned the splitting and i was going to try it but after petes post..... and if you do that bulk order count me in......

pete, what do you mean with it snapping longitudaly. why would it snap in a press with less pressure, and not snap in one with tons?
are you saying that the imperfections in the mould would cause the snapping?


i looked at your build on silverfish with the 3x4mm bamboo where you used the concrete mould and the bottle jack.
you said there that the pressure needed there was immense and you didnt think that it would be possible with just a vac bag.
i just mentally threw out the 6.5mm. i dont know if ill have to learn the hard way or what, but im pretty confident that if you were to sandwitch the 4mm inbetween two descent wooden plies, it would work.
considering you have a proper mould of course.

Premium Member Comment by Steve on May 12, 2010 at 21:16

Well said Pete, I quite enjoy your cryptic comments.

I reckon asking eveyone else what works is what doesn't. Try it out and find out for yourself

Premium Member Comment by pete hill on May 12, 2010 at 21:07

jeez adam, dont be like that, seven years ago i was stuffin around and tryin to figure it all out like you guys are now, ado was the only one getting random boards in, i bought a landy direct but it cost more than they do now and it took about three months to get here, rather than deal with that crap again i started building, foam core slaloms, bamboo dropthrus cambered cruisers etc but there was just a handfull of guys doin DH so there was no point taking it further back then, I'm sure i could solve alot of your issues straight up but its more fun to be cryptic and in the end you'll all make better boards for yourselves or to sell because you will work it all out in the end, its not rocket science, if you wanna do it, especially if you have intent to sell look at hows it really done and think about what works and does not, I'll happily tell you what does not work.

Premium Member Comment by Adam on May 12, 2010 at 20:34

feel like i am in trouble from the principal, we are just hacking around by comparison but thanks for the reality check. No offense intended. thanks

Premium Member Comment by Steve on May 12, 2010 at 19:23

Yeah I'm going to stay away from bamboo, as Pete said it needs a whole new set of skills to get it right and I don't like the way it holds up to impact. But thats just a personal thing.

FGI in your state has quality foams that are perfect for cores, although it can be pricey if your only doing one offs

Premium Member Comment by pete hill on May 12, 2010 at 17:08

bamboo is already readily available here in oz, it would only cost more from nz, the thinner sheets are only available in a large order like you have found adam, bamboo does not just work like bunnings ply, it takes more thought than i have seen come out of these pages to make it work properly, 6.5mm would not work for any kind of concave it would snap longitudaly at the first hint of pressure, even down to 2mm there is a bit of an art to pressing bamboo, you guys need to figure out how to make a real mould, not a jig and have literally tons of pressure pressing your boards to have a good level of success with bamboo or your just pissing $$$$ down the drain, but having fun along the way


FOAMCORES....i dont think they use expandable foam for any that are on the market today, various infusion methods are used but that refers to how the resin enters the bag and how the excess exits not anything else, if i was going to go to the effort of making a foamy i would stick to proven methods using high density extruded polyeurathane foams that were purpose built for the composite industry, sheer strength is important too, no point having something that is literally going to pull itself apart under any kind of load, for that reason mathys insulation foam/ or the white coolite from the packaging of the last desk mum bought at ikea will not work,

Premium Member Comment by Adam on May 12, 2010 at 16:44

i got in contact with that NZ based company that dylan posted they have 1.6 and 3mm bamboo ply, that ply made from multiple veneers. depending on the factory bonding agent it has possibilities. They did say they could make a 2mm single veneer but i would have to be purchasing over 100 square m, that is about 105, 2400 by 1200 sheets? i have asked them more questions and they got back to me very quick last time so i will keep ya posted. It could be an asra board builders group order, but that is a lot of veneer. Might be good for some of the more serious people, in a close geographical area?
Pete, Ash, Steve, Norfin, i know that that area goes from nsw to townsville but its worth a thought.

Premium Member Comment by Adam on May 12, 2010 at 16:32

dylan the idea about the ply either side is to stop the bamboo splitting out into the little voids in the press if the bamboo, on the outside it will still split. the other option is to use a sacrificial layer of ply on the out side that is seperated from the blank by a layer of plastic, then i might as well just use all bamboo. if i had a better press and a vac bag i would be set, i would not have the problems. Then if i could work full time for 6 months as a board builder have 10 grand to spend on tools, and an army of spider monkeys as henchmen, and a gold plated dunny and sharks with lazer beams on their heads............ what was i talking about again? sorry being a tool. haha

Premium Member Comment by Adam on May 12, 2010 at 16:02

i already have 4mm sheets. i tried 3 layers and had issues with splitting but i had a rad w concave?

Premium Member Comment by sean meaney on May 12, 2010 at 15:57

you could try and just do a two ply deck of 6.5mm bamboo, you would end up with a 13mm deck that could be rather nice

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