Outtacontroll Posted June 10, 2003 Report Posted June 10, 2003 Anybody ever seen skate style trucks made out of carbon fibre or the likes? If they could be made to work they could be really light and just as strong as metal ones. Im thinking of trying to make some for a college project, any idears? Quote
JoeSchmoe Posted June 10, 2003 Report Posted June 10, 2003 My primary concern is that Carbon can (and does) shatter; if you can get round that, then you could well be onto a winner. Are you talking about making the whole thing out of carbon, or just one of the two specific components? (baseplate/hanger) Also, would you keep the kingpin and fittings as metal? If you can get it to work though; I think it could be superb. It would certainly make for a very light board. Good luck, and if you need someone to test them to destruction, give me a shout Quote
Outtacontroll Posted June 10, 2003 Author Report Posted June 10, 2003 What im thinking of doing is making both the baseplate and hanger out of carbon skinned epoxy foam, about 4 layers of carbon on the thing an i recon ull be hard pressed to break it. The biggest problem is the bearing surfaces will still have to be some kind of metal, as will the axel stubs. Still would be a fair bit lighter. Are normal trucks steel or ali? Quote
JoeSchmoe Posted June 10, 2003 Report Posted June 10, 2003 It's a mixture, some use steel, some use Ali... As an example, Terratrucks use heat treated aluminium for the baseplate and the majority of the hanger; with 4130 Chromoly steel axles and Grade 8 steel kingpins. Quote
Outtacontroll Posted June 10, 2003 Author Report Posted June 10, 2003 Thats cool then, cos ali and carbon dont mix to well, so with steel axles it will still be loads lighter. Hmm wont be too difficut prehaps, carbon/kevlar deck could be done, just ill have to find some lightweight wheels to do it justice, cos i aint gonna try making them! hmm and light footstraps to top it off......... Quote
burgy Posted June 10, 2003 Report Posted June 10, 2003 to be honest bud that sounds like your using carbon cause you want to rarther than cause its suted to the aplication. I Your going to have to make a tool & you'll need a vacum pump & all the bagging stuff. Its going to be alot of effort & I bet you'll find to get a similar strenght truck you wont get much of a weight saving over a good cast alloy sk8 truck. Then theres the issue of impact damage, Alloy trucks can take hit & loose chunks & still function. Composite decks are a different matter, but again the advantages are in flex & longevity rarther than significant weight saving over a good maple deck. Also foam cores arnt super good in atb decks Foam is designed to be stiff & getting the sort of thing to withstand the sort of repeated flexing a deck gets is go be harder that you think. I would stick with a wooden core & use the composite to isolate the flex in the places you want it. good luck & post some pics if you make one. Burgy Quote
johnboy Posted June 10, 2003 Report Posted June 10, 2003 You should check out seismic, they are making some carbon and resin skate trucks, size for skateboards not mountain boards. They are nice and light and feel pretty sturdy. don't have much more useful info but I think that trucks are definately the limiting factor in the design of boards at the moment. All this work on decks etc isn't having that much of an impact on weight because of the weight of the trucks,wheels and tyres. Best of luck, John Quote
stevelives123 Posted June 10, 2003 Report Posted June 10, 2003 sounds good! If you do get to make them and they do work i would love to give them a go. Good luck and i hope it works! Quote
Outtacontroll Posted June 10, 2003 Author Report Posted June 10, 2003 burgy: Im using carbon because i have the facilities avilable already. When i said foam i mean actually in the core of the truck, epoxy foam is real hard, you can barely dent it with a hammer, there are loadsa core materials about tho, some may be as good as wood for the deck but lighter, just a case of playing with it and seeing what works. Quote
Coolnutz Posted June 10, 2003 Report Posted June 10, 2003 Find someone that will spin you out some titanium axles, I would use Permabond epoxy to install them. http://www.permabond.com/eCustomer/ Quote
bushflyer Posted June 11, 2003 Report Posted June 11, 2003 dont just use carbon. if you add some aramid during your lay up then this'll add some energy aborbing qualities. if not over time repeated shocks will spread through the weave and you'll have a very nasty failure. if youre doing this i prsume you know the maths for working out the stresses. there's other suitable fibres but cost is an issue. when i used to mould gliders, i used a amamid layer in high stress areas such as the wing seat to help dissipate the load. p.s. if you use vacumn bagging you can use a lot less exopy and save loads of weight. Quote
Outtacontroll Posted November 11, 2003 Author Report Posted November 11, 2003 Time for an update, ive started building a set of carbon/kevlar trucks to try out (break!) heres a cad image- Quote
Outtacontroll Posted November 17, 2003 Author Report Posted November 17, 2003 Just finished the baseplate, comes out at 130 gramms and i cant see it breaking in a hurry! ill post a pic when i get a chance. Quote
king_of_the_sky Posted November 17, 2003 Report Posted November 17, 2003 Heres my little ditty on Pro D CAD just a quick ida mfor some trucks took me about 10mins to do. so dont laugh cus its not that gr8 Quote
Outtacontroll Posted November 17, 2003 Author Report Posted November 17, 2003 Nice one, but how does it work?! Heres a pick of one of my baseplates: Quote
Coolnutz Posted November 17, 2003 Report Posted November 17, 2003 hey king_of_the_sky is that independent suspension??? How is that going to work? Quote
king_of_the_sky Posted November 18, 2003 Report Posted November 18, 2003 i thnik that it would much work much the same way as channel trucks im not exactly certain about it im trying to visulise it in my minde of it turning. Quote
macca941 Posted November 19, 2003 Report Posted November 19, 2003 outtacontrol; good to see u'v made some progress. it'll be interesting to see how it turns out.. Quote
Outtacontroll Posted December 15, 2003 Author Report Posted December 15, 2003 And here u have it .... Quote
Outtacontroll Posted December 15, 2003 Author Report Posted December 15, 2003 And another one.... It came out 500g lighter than the original sk8 trucks on that board (scrub skudder 35). The axels have a little flex in them but they dont bend permanatly, and havent broken yet. . Quote
Spike J Posted December 15, 2003 Report Posted December 15, 2003 Good to see someome else looking at truck design. This is what I have come up with. http://www.kitedeck.com/im/revo1.jpg Quote
skytigerer Posted December 15, 2003 Report Posted December 15, 2003 spike...... has butch got the board at the mo? any news on maybe sending it this way? Vince Quote
Spike J Posted December 24, 2003 Report Posted December 24, 2003 Skytigerer, yes butch has got the board check out our web site and see him in action on it in a few vids he took. Will try to get the board to you as soon as I can mate. Merry Crimbo All Quote
Butch1599968578 Posted December 24, 2003 Report Posted December 24, 2003 The board is ALL GOOD! but gonna give it a good blast over christmas jus to make sure... Cheers Spike! BUTCH Quote
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