The_Sheriff 0 #1 May 24, 2006 Is it true that you can re adjust your helmet by aplying heat into it at shape it the way you want ?? Ive got a brand new Tonfly helmet that is a bit wide and i'm having a hard time hearing my Audiable alti Thanx 4 the help Quote Share this post Link to post Share on other sites
kingbunky 3 #2 May 24, 2006 i'm not 100% sure, but i believe you're thinking of the bonehead liner that you can "bake'n'shape". the carbon fibre itself doesn't change shape, just the foam liner."Hang on a sec, the young'uns are throwin' beer cans at a golf cart." MB4252 TDS699 killing threads since 2001 Quote Share this post Link to post Share on other sites
pbla4024 0 #3 May 24, 2006 Here is description for Airgun helmets. http://www.airgun.cz/eng/udrzba.php I did it already few times without any problem. Fido Quote Share this post Link to post Share on other sites
monkycndo 0 #4 May 24, 2006 Bonehead helmets can be custom fit to your head. How it is done depends on the helmet. Here are the instructions for their helmets. Not all other manufacturers' helmets can be done this way.50 donations so far. Give it a try. You know you want to spank it Jump an Infinity Quote Share this post Link to post Share on other sites
IanHarrop 42 #5 May 24, 2006 Quotei'm not 100% sure, but i believe you're thinking of the bonehead liner that you can "bake'n'shape". the carbon fibre itself doesn't change shape, just the foam liner. Its the other way round. The shell is what you shape with heat. Done it twice - works great!"Where troubles melt like lemon drops, away above the chimney tops, that's where you'll find me" Dorothy Quote Share this post Link to post Share on other sites
mnealtx 0 #6 May 24, 2006 QuoteQuotei'm not 100% sure, but i believe you're thinking of the bonehead liner that you can "bake'n'shape". the carbon fibre itself doesn't change shape, just the foam liner. Its the other way round. The shell is what you shape with heat. Done it twice - works great! Not according to Bonehead... although I realize that may be different for other manufacturers... Quote The liner is made up of three sections of a thermo-formable foam, which when heated will soften and can be molded during the cooling process.Mike I love you, Shannon and Jim. POPS 9708 , SCR 14706 Quote Share this post Link to post Share on other sites
n23x 0 #7 May 25, 2006 Ian's right. While the foam liner might change a bit, composites definately exhibit plastic deformation via heating and bending. It's how I changed the fit of my bonehead. .jim"Don't touch my fucking Easter eggs, I'll be back monday." ~JTFC Quote Share this post Link to post Share on other sites
indyz 1 #8 May 25, 2006 It depends on the particular helmet. I baked the shell of my old Mindwarp, but I only baked the liner of my Optik. Read the instructions for your particular helmet (make AND model). If you have any questions, contact the manufacturer. Bonehead, Arrow Dynamics (now out of business), and Cookie were all quick to respond when I had questions. Quote Share this post Link to post Share on other sites
mnealtx 0 #9 May 25, 2006 'zackly - while Bonehead DOES say to bake the entire helmet for a few models, they recommend baking ONLY the liner for the majority of their models. Other manufacturers, of course, may differ. That's not to say that some amount of "flex" isn't possible if the whole helmet is baked. Our own 'hottamaly' (a Bonehead rep) recommended that I use pressure on my open face Guner to flex the shell slightly for a better fit.Mike I love you, Shannon and Jim. POPS 9708 , SCR 14706 Quote Share this post Link to post Share on other sites
n23x 0 #10 May 25, 2006 I made a general statement about composite structures. One I feel relatively confident with, based on personal experience. Your mileage may vary (based on experience). .jim"Don't touch my fucking Easter eggs, I'll be back monday." ~JTFC Quote Share this post Link to post Share on other sites
The_Sheriff 0 #11 May 25, 2006 Thank you all, i'll come back with resolts... Quote Share this post Link to post Share on other sites
kallend 2,147 #12 May 25, 2006 It's not the fibers (glass, kevlar, carbon...) that determines whether it can be shaped on heating, it's the resin used to impregnate it that determines that. That said, carbon is far stiffer than glass or kevlar, but kevlar is tougher which is a very desirable attribute in a helmet. Of course, kevlar doesn't look as cool as carbon.... The only sure way to survive a canopy collision is not to have one. Quote Share this post Link to post Share on other sites
VectorBoy 0 #13 May 26, 2006 Quote It's not the fibers (glass, kevlar, carbon...) that determines whether it can be shaped on heating, it's the resin used to impregnate it that determines that. That said, carbon is far stiffer than glass or kevlar, but kevlar is tougher which is a very desirable attribute in a helmet. Of course, kevlar doesn't look as cool as carbon. Kallend isn't it the last cure temperature that determines if the resin in a composite can be baked and "remolded"? BTW I think Kevlar does look as cool as carbon. I have seen some aramid helmets that look pretty cool. Quote Share this post Link to post Share on other sites
