rhythm_101 Posted December 15, 2005 Report Share Posted December 15, 2005 Hi, my friend and i are in need of some info regarding carbon fibre. Basically we want to make a carbon chain guide (using an E-thirteen as the "insperation") just need some ideas of strength and flex , we're looking into using 4mm think pure carbon for the back plate, is there any special way of cutting it regarding the weave? will it be too flexy? or too brittle? anyone know of a place where we could order a sheet or two? if anyone has any info regarding carbon fibre, please don't hesitate to put it in here, al info is halpul thank you to everyone in advance Quote Link to comment Share on other sites More sharing options...
David Posted December 15, 2005 Report Share Posted December 15, 2005 It is hard to work with so your going to need to research how you are going to form it. Is carbon fibre the most suitable material or are you using it purely for looks? Quote Link to comment Share on other sites More sharing options...
rhythm_101 Posted December 15, 2005 Author Report Share Posted December 15, 2005 It is hard to work with so your going to need to research how you are going to form it. Is carbon fibre the most suitable material or are you using it purely for looks?it's been used heavily in the bike industry for years now, everyone know the advantages (strength to weight ratio etc) and theres a few carbon chain guides knocking around, (one made by Ethirteen) we mainly want to use it for the low weight, and it's a bit of a chalange to keep us occupied Quote Link to comment Share on other sites More sharing options...
Simpson Posted December 15, 2005 Report Share Posted December 15, 2005 i dont think it is really the best material wont it just shatter if you hit it? Quote Link to comment Share on other sites More sharing options...
PaRtZ Posted December 15, 2005 Report Share Posted December 15, 2005 is itn for a school project? cos if it is then you can note down the problems you came across in your evaluation or whateverIt is a bitch to work with, and extremely expensive. Id look up company's that work with C-F before you attempt to try it yourself Quote Link to comment Share on other sites More sharing options...
ZeroMatt Posted December 15, 2005 Report Share Posted December 15, 2005 i dont think it is really the best material wont it just shatter if you hit it?No way unless you're the hulk or something, as its made from a badass weave Quote Link to comment Share on other sites More sharing options...
Janson Posted December 15, 2005 Report Share Posted December 15, 2005 but when you hit it hard enough it may/will start delaminating and then you broke it.cf is cool as f**k, but i'd use a thick alu plate for a tensioner, much easier to work with and stuff... Quote Link to comment Share on other sites More sharing options...
spunkey_monkey_boy Posted December 15, 2005 Report Share Posted December 15, 2005 contact a company called nigel dennis sea kayaks in anglesea, they use shit loads of CF and you may be able to buy some off them. if not contact mitchell blades in chester... Quote Link to comment Share on other sites More sharing options...
scott-mad Posted December 15, 2005 Report Share Posted December 15, 2005 you would need to make a mould and then layer it into the mould with layers of resin too. also for strength you would need to put aluminium waffle in at least one layer. i was chatting with my mate from work about it who has been doing about carbon production at the motorsport college he goes too.i was going to make a chain tensioner out of it but it was too small to make or somethinghope this may help Quote Link to comment Share on other sites More sharing options...
durkie Posted December 15, 2005 Report Share Posted December 15, 2005 is there any special way of cutting it regarding the weave? will it be too flexy? or too brittle? anyone know of a place where we could order a sheet or two? if anyone has any info regarding carbon fibre, please don't hesitate to put it in here, al info is halpul thank you to everyone in advanceget a sheet from a material supply company (mcmaster.com might ship to uk) and cut it out. if it's brittle or flexy then that's how it's going to be. if you want to do anything more with its properties, or optimize it for the loads a chain tensioner is going to see, then you're going to need to make some friends with people that know or take some classes/read some books. either way, carbon fiber is pretty bad with impact and abrasion, despite it apparently being made from a "badass weave" Quote Link to comment Share on other sites More sharing options...
guineasmithpig Posted December 16, 2005 Report Share Posted December 16, 2005 i'd go for polycarbonate or somethin personally. be a piece o cake to make, cheaper, and u don't have all the complications and chance of failure you have with c-f. is it the same stuff E-13 use for their devices? can't be bad if its used for bulletproof windows! as for c-f, do you have to cut it under compression or somthin, to stop it frayin and cracking as bad? i wasn't allowed to use it at college, because its too much hassle, n nasty stuff on the hands! Quote Link to comment Share on other sites More sharing options...
Si-man Posted December 16, 2005 Report Share Posted December 16, 2005 You would need special breathing equipment because it's nasty shit and some titanuim/ diamond drill bits etc because it will blunt standard tools straight away ( i think, of ftop of my head anyway)Best person to ask is Edd Potts (Dave85), hes the engineering wizzard on here Quote Link to comment Share on other sites More sharing options...
rhythm_101 Posted December 16, 2005 Author Report Share Posted December 16, 2005 right, it's not for a school project, we've already contacted a few companies that make some chain devices for MSC, it's not for a chain tensioner it's for a chain guide, and we already know it's going to be difficult, that's the challange i'll have a look at the companies you've suggested anyone else? Quote Link to comment Share on other sites More sharing options...
Shaun H Posted December 17, 2005 Report Share Posted December 17, 2005 i'd go for polycarbonate or somethin personally. be a piece o cake to make, cheaper, and u don't have all the complications and chance of failure you have with c-f. is it the same stuff E-13 use for their devices? can't be bad if its used for bulletproof windows! as for c-f, do you have to cut it under compression or somthin, to stop it frayin and cracking as bad? i wasn't allowed to use it at college, because its too much hassle, n nasty stuff on the hands!It's supposed to be cooked at 120*C at 90psi I think, so you'll need to find a pressure cooker somewhere. We have one at our school/sixth form so you could ask at your school/college. Quote Link to comment Share on other sites More sharing options...
PaRtZ Posted December 17, 2005 Report Share Posted December 17, 2005 right, it's not for a school project, we've already contacted a few companies that make some chain devices for MSC, it's not for a chain tensioner it's for a chain guide, and we already know it's going to be difficult, that's the challange i'll have a look at the companies you've suggested anyone else?What ever you do, make sure you remember its a fibrous material. I forgot and Ive grinded + drilled an XTR booster only for it to fall to pieces Quote Link to comment Share on other sites More sharing options...
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