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| Home Made Boards (6188 Posts)
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Home Made Boards |
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Hommeade risers
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On 3/28/2006 yan0
wrote in from
United States
(140.233.nnn.nnn)
Munchh,
Try some HDPE, I am pretty sure you can get it in blocks/sheets much like some cutting boards. I don't know about thicknesses (you probably can get it as thick or thin as you like it, I havent looked into it), but if you can't find the thickness you want there is allways a planer or tablesaw..planer would be more accurate. A couple years ago I built a prototype ski-plate from the stuff, tuff as nails, easy to work.. the rest.
Good luck
yan0
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nice
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On 3/28/2006
Munchh
wrote in from
United Kingdom
(86.132.nnn.nnn)
I thought you may have had a play!
was looking for something harder, with no real 'give', somthing i can work with the tools i use for wood?
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rise above...
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On 3/28/2006 shapeshifter
wrote in from
United States
(198.160.nnn.nnn)
this one's 11º in 80a urethane...
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wood
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On 3/28/2006
Munchh
wrote in from
United Kingdom
(86.132.nnn.nnn)
Should have said, i've used wood, but i'm looking for something more durable/
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Nylon
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On 3/28/2006
Munchh
wrote in from
United Kingdom
(86.132.nnn.nnn)
Has anyone made their own risers?
I'm looking at making some custom angles, but i'm not sure what material would be best?
I'm guessing some sort of nylon?
Any pointers.
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confusion core...
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On 3/28/2006 shapeshifter
wrote in from
United States
(198.160.nnn.nnn)
i can show you how to dynamically "grow" a fusion core using readily available materials... but it will cost you.
you would die if you only knew how simple my solution is.
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Skurfskates Foamcore
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On 3/28/2006
Chris Barrett
wrote in from
Canada
(70.49.nnn.nnn)
Not sure how much I can devulge about this, we don't want to really show anyone what we're doing till we get it right. This is a prototype for a fusion foam core we've been playing with, expect more soon!
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Bamboo Boards
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On 3/26/2006 Mr Zogs
wrote in from
United States
(167.206.nnn.nnn)
The boards coming out of Longboards by Fatboy are very stiff and strong. Or, the slalom boards are very stiff. The longer boards though I have heard are still very strong and stiff as well. They are a bit heavier than a standard slalom board, but I absolutely love the feel of them. The planed convex bottom acts as a nice solid stringer and makes risers less necessary. As far as bamboo having similar properties to carbon, I think they are just too different to try to relate. You don't see solid carbon boards that are 1/2" thick of carbon. And you don't really see super thin weaves of bamboo being placed on boards to strengthen them...
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boo!!!
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On 3/26/2006 shapeshifter
wrote in from
United States
(198.160.nnn.nnn)
On 3/23/2006 Munchh wrote in from United Kingdom (86.132.xxx.xxx)
Thats looking nice man, i'm gonna see if i can get it over here, i'm asuming its lighter than birch?
Hey Shapeshifter, haven't you used something like this??
yeah, you got that right munchh, i've been building with bamboo for quite some time now. something that isn't obvious to most is that the simple act of processing the bamboo culm into a viable product for industrial use changes the natural properties of the material and takes away a lot of the ethereal qualities for which it is most desired. bamboo in it's natural state is perfect for tubular structures such as rafts, scaffolding, and bike frames but laminate it flat and you're dealing with a whole other matter.
what i generally wind up doing is laminating the uni-directional fiber in such a way as to return it to the hollowness of structure as in it's natural state. i've experimented with carbon for this purpose but find that it doesn't have the qualities desired for this application. maybe i just need another approach...
hey herbn, you should check out the roarockit method for laminating under vacuum. ted's now providing huge 14" x 70" bags available... and it should give you an easier learning curve towards this process. i've got the full on rig for vac but i'm diggin' this latest development.
i'm not totally with there you on the hemp deal, though that is the marketing approach taken lately. hemp's omni-directional tendencies just seems to make it more like that paper layer they were putting on some old g&s decks back in the day. my thoughts are that the propper use of hemp is in core applications in the future.
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bamboo
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On 3/25/2006 herbn
wrote in from
United States
(205.188.nnn.nnn)
I've seen that kind of bamboo thing,i didn't think the new ones would be like that, i figures it would be like a few really thin bamboo plys wrapped around a mandrel of some type (maybe wax)and vacuum pressed into a tube. When you say nearly as light as a full carbon frame ,what does "nearly as light" mean? that's sort of a statistical phrase. since you have pics or access to pics all set to post(i have no idea how to do that) if my giant is a 2.2 lb frame nearly as light would be, a tenth? an ouce? half a pound? a pound? a kilo? heavier, if my bike weighs 16.6 lbs complete ,i guess to most people a 19 lb bike might be "nearly as light" , 19lbs worked in 1981 and seemed to handle fairly well. The beveled fatboy bamboo slalom board and the sector pintail bamboo that i've seen have been all bamboo through and through and they seem faily heavy, i'll look into what the comet is like.
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re: statistics
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On 3/25/2006
msk
wrote in from
United States
(68.190.nnn.nnn)
"i kind of doubt a bike frame is a big mitered bamboo tube"
That's exactly what Calfee is doing. The bamboo tubes are mitered, glued together, and then the joints are wrapped in carbon (same construction as used on some of his carbon frames). I've also heard there is an optional epoxy/hemp wrap available instead of the carbon.
From what I've heard, Calfee's biggest problem is sourcing bamboo that is straight enough, in the correct diameters.
And this is nothing new. Bamboo bike frames have been around for about as long as the bicycle itself.
"Why are the bamboo skateboards such tanks? and not all that stiff while being heavy."
The only bamboo deck I've tried so far has been an old Comet Don O'Shei. Since there's glass and carbon in that, it may not be a fair representation of what the bamboo deck is like. But that deck is light, and actually too stiff for my preferences (and I weigh 210). I no longer use that board, having replaced it with a 7-ply maple deck that isn't any lighter, but not quite as stiff...
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statistics
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On 3/25/2006 herbn
wrote in from
United States
(205.188.nnn.nnn)
ya see ,it that's true about the bike frames ,it's pretty interesting. Why are the bamboo skateboards such tanks? and not all that stiff while being heavy. Perhaps the bamboo fibers are being used differently in the bike frames than in the skateboards,maybe, i kind of doubt a bike frame is a big mitered bamboo tube. Statisic,for instance," a bamboo fiber is nearly as strong as a carbon fiber",perhaps statisically true, fiber per fiber, but carbon can be neat and orderly thoughly soaked in epoxy to just the right resin/fiber ratio and directed in an efficient layup,maybe they're no doing that in bamboo skateboards.
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re: bamboo
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On 3/25/2006
msk
wrote in from
United States
(68.190.nnn.nnn)
"so how strong is it really? I've heard stat's quoted on it comparing it to carbon fiber, one rule i've heard, when someone starts quoting a statistic,they're lying."
Craig Calfee, who built carbon bikes for Greg Lemond, is now also doing bamboo bike frames. Although slightly heavier than his carbon frames, he says the ride quality, strength, and crash resistance is comparable to carbon...
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bamboo
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On 3/24/2006 herbn
wrote in from
United States
(152.163.nnn.nnn)
it's not like i havn't seen bamboo stuff, the sectors are heavy and not that stiff, they seem pretty springy ,it seems like that other company a while ago that made the really flexy "unbreakable" really really heavy boards,,,whatever
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Bamboo and Tensile Strength
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On 3/24/2006 Preston
wrote in from
United States
(205.188.nnn.nnn)
With no doubt bamboo is dfinately one of best materials for skateboards. In my 10+ years of skateboard restoring I,ve seen it all and the best description that I can give bamboo is "natural Bowtuff". It's omni directional, and tightly compressed fibers gives it that high tensile strength.
For all you deck builders out there try this, put the bamboo in carpenters bleech, then completely dry it. Next put it in fabric dye then go with your own imagination with graphics, and stripes.
Stay Safe
Preston
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Tensile Strength
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On 3/24/2006 isaacsel
wrote in from
United States
(192.212.nnn.nnn)
Bamboo has some pretty interesting characteristics (including high tensile strength). It is used in $1000 fishing poles. I was told that Comet uses bamboo as a core in some of their composite boards. I am curious to see if it has any advantages for home made board construction. Who knows?... but it will be fun finding out. There are definitely some preconceived ideas about bamboo but I am looking for somebody who has actually used it in board construction.
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Bamboo
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On 3/24/2006 herbn
wrote in from
United States
(64.12.nnn.nnn)
all the bamboo boards i've seen are pretty heavy ,no way bamboo is light,not by it's self anyway. The boards are also fairly thick ,i guess they need to be,sectors pintails still flex quite a bit, so how strong is it really? I've heard stat's quoted on it comparing it to carbon fiber, one rule i've heard, when someone starts quoting a statistic,they're lying.Maybe it's like comparing a fiberglass pultrusion,to a foam/glass or maple glass laminate. I compare the bamboo thing to hemp, to me nothing hemp has ever lived up to the hype,i remember hemp sneakers,yuck. The hemp market is just a bunch of stoners who love the idea of being surrounded by their object of affection. I know the ecological arguement for bamboo and maybe they should press building materials out of it and leave it at that, that should save enough slow growing forrests. There's probabely more bamboo in chopsticks than there is in skateboards,there's my "statistic" for the day.
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bamboo
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On 3/23/2006
Munchh
wrote in from
United Kingdom
(86.132.nnn.nnn)
Thats looking nice man, i'm gonna see if i can get it over here, i'm asuming its lighter than birch?
Hey Shapeshifter, haven't you used something like this??
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vampire killers
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On 3/23/2006 tom t
wrote in from
Canada
(142.20.nnn.nnn)
By the way guys,
why do they call that shape "vampire killer" ?
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Bamboo
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On 3/23/2006 isaacsel
wrote in from
United States
(192.212.nnn.nnn)
Has anybody been using bamboo in their home made boards? I only found one reference to bamboo on this BB in the past month. I recently bought some 3/16" thick bamboo panels to play with. It comes in 4'x8' sheets in two styles. The horizontal lam has 7/8" bamboo strips edge glued together. The vertical lam has the bamboo turned on edge for about 1/4" seams. I thought the vertical lam would be stiffer but testing the flex of the two different panels showed the horizontal lam to be stiffest. I used horizontal lam to make a '70s style wedge tail board with an 18" wheelbase. I sandwiched an 1/8" 5-ply birch core between two pieces of the bamboo (and added the wedge tail). The resulting 1/2" thick board was more flexible than I expected, having worked mostly with birch and maple before. I added a bamboo beam on the bottom to stiffen it up a little. The bamboo looks exotic (compared to maple or birch) and it seems pretty easy to work with. I am testing the board to see how it holds up to normal skating abuse. I think I will need to make the next one a little thicker than necessary with birch or maple. I am going to use a bamboo cross-ply core on the next one. Anybody else have any experience with this stuff?
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Loki inlays
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On 3/23/2006
Munchh
wrote in from
United Kingdom
(193.113.nnn.nnn)
Loki man,
thats the sort of test deck i'd like to be building.......nice work dood.
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Latest
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On 3/22/2006 Loki440
wrote in from
Canada
(199.126.nnn.nnn)
Thought i would share over here on ncdsa, But here is the latest board that i have done, it was basically just a test board for some new techniques and ideas i had
anyways here are the links so 56k bewarned cause i didnt want to resize them
Click here for link
Click here for link
Click here for link
But yah so these are just the latest pics i have up on my site Click here for link just thought i should make another apperance over here
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bagging
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On 3/20/2006 herbn
wrote in from
United States
(205.188.nnn.nnn)
nah not yet, still staight up hydrolic jacks in a frame. Thinking fairly seriously about it though.
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shape
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On 3/20/2006 shapeshifter
wrote in from
United States
(198.160.nnn.nnn)
i've come to believe that carbon is abused for the reason that it compensates for faulty design. some of the foam core and all of the hollow decks i've made in the past have got some taper... also some features of the "s" (which is both cambre and rocker) as well as the "w"concave (a combination of the concave and convex) not to mention a bit of concave and concave on their own. all this shape on one deck wouldn't translate too easily on a v-lam.
you bagging it these days herbn?
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taper
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On 3/20/2006 herbn
wrote in from
United States
(64.12.nnn.nnn)
that's one of my wish list things, is there a production v lam board with a taper'd core? on my beamer creations,my last four boards,i've been sanding down the ends of the beams,blending them down to the board. But a board with a v-lam balsa core; thick in the middle tapered down on the ends and an abs or hardwood edging,and a carbon,or kevlar skin...wicked.I may have to get busy, i don't know if i could spend that kind of money on a production board even if it did exist, even though the cost involved in making the first one, definitely is more than just buying one. I want to start vacuum bagging some carbon bike parts too, so it might be time.
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