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Carbon Building
Nick,
You opened the door a little bit over in SMOKED OUT, now how about sharing a bit more in pictures and narrative about how you build carbon frames?
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Re: Carbon Building
gimme a few days. what i'll try and do is document with words and some pics the next pair of SLs i'm starting tuesday or wednesday.
Nick Crumpton
crumptoncycles.com
Instagram
"Tradition is a guide, not a jailer" —Justin Robinson
"Mastery before Creativity"—Nicholas Crumpton 2021
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Re: Carbon Building
Very cool! I'm sure many of us will look forward to that.
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Re: Carbon Building
That will be be fantastic.
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Re: Carbon Building
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Re: Carbon Building
Quite possibly the best VS thread ever...thanks guys!
Can't wait till the next update.
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Re: Carbon Building
Hey Nick,
Neat thread. I use white vinegar for cleaning any epoxy from my hands, seems to work well without adverse effects to the skin. Do you think that a secondary bond as you do between ti insert -carbon shell- pre preg joint laminate is the strongest conection method? I actually bond the ti insert during joint laminate construction using adhesive film between insert and pre preg layers. Haven't had any failures as yet but don't build anywhere near as many as you. Feedback welcome.
Bill
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Re: Carbon Building
Bill,
i'm not worried about solvents adverse effects on the skin but rather it thinning and transferring the epoxy into the bloodstream. this is not good. if vinegar is cutting/thinning then i'd still choose soap and water and know that i my work will eliminate whats left in due time. soap and water wont really get it all off but will reduce and keep you from gluing yourself to yourself(a joke) or the next thing you touch. like dirt and lint.
as for carbon co-molded to Ti vs. carbon/Ti secondary bond with carbon co-molded to carbon. i've built plenty of bikes with the joint co-molded to the Ti and have had no issues in the field. i just prefer the latter. and my current method actually adds weigh!
Originally Posted by
progetto
Hey Nick,
Neat thread. I use white vinegar for cleaning any epoxy from my hands, seems to work well without adverse effects to the skin. Do you think that a secondary bond as you do between ti insert -carbon shell- pre preg joint laminate is the strongest conection method? I actually bond the ti insert during joint laminate construction using adhesive film between insert and pre preg layers. Haven't had any failures as yet but don't build anywhere near as many as you. Feedback welcome.
Bill
Nick Crumpton
crumptoncycles.com
Instagram
"Tradition is a guide, not a jailer" —Justin Robinson
"Mastery before Creativity"—Nicholas Crumpton 2021
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Re: Carbon Building
I was under the impression that bonding carbon to aluminum required a galvanic insulator like fiberglass or anodizing. What protects the stays from eating the dropouts?
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Re: Carbon Building
Originally Posted by
vulture
I was under the impression that bonding carbon to aluminum required a galvanic insulator like fiberglass or anodizing. What protects the stays from eating the dropouts?
carbon doesn't "eat". at any rate, the ID of the stays is glass. regardless, the bonding agent has very good dielectric strength and at .005"+ back there, the drops are well insulated.
galvanic corrosion requires 2 things, direct carbon to aluminum contact and i mean direct. coupled with the presence of oxygen. so even if a bit of aluminum does contact carbon, it would need to be in the open.
Nick Crumpton
crumptoncycles.com
Instagram
"Tradition is a guide, not a jailer" —Justin Robinson
"Mastery before Creativity"—Nicholas Crumpton 2021
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Re: Carbon Building
Hey Y'all....Nick has this this sh$t covered and has been down all of the roads. His process works. It blows me away with gratitude that he's sharing some of it with us. I, for one, am going to just sit back, relax, and enjoy the show.
Thanks Nick!
Dave
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Re: Carbon Building
Very cool! On the edge of my seat for the next installment.
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Re: Carbon Building
Originally Posted by
Dave Anderson
Hey Y'all....Nick has this this sh$t covered and has been down all of the roads. His process works. It blows me away with gratitude that he's sharing some of it with us. I, for one, am going to just sit back, relax, and enjoy the show.
Thanks Nick!
Dave
+1000
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Re: Carbon Building
i may "have it covered"... but please don't take it for granted, ask questions if you have em.
Last edited by crumpton; 11-04-2010 at 11:50 AM.
Nick Crumpton
crumptoncycles.com
Instagram
"Tradition is a guide, not a jailer" —Justin Robinson
"Mastery before Creativity"—Nicholas Crumpton 2021
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Re: Carbon Building
The one thing I'm really curious about is how you align the hole in the chainstay for the front derailleur cable. I struggled with it and just went the way of steel tubing to avoid drilling a hole. I was thinking trying to make a jig for it, but it wold be rather complex.
Also you vent your tubes or keep them sealed? The one carbon frame I've done so far was sealed, but I'm curious if there is a reason not to.
Really appreciate you post this Nick.
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Re: Carbon Building
Originally Posted by
ADD
The one thing I'm really curious about is how you align the hole in the chainstay for the front derailleur cable. I struggled with it and just went the way of steel tubing to avoid drilling a hole. I was thinking trying to make a jig for it, but it wold be rather complex.
Also you vent your tubes or keep them sealed? The one carbon frame I've done so far was sealed, but I'm curious if there is a reason not to.
Really appreciate you post this Nick.
both those questions wil be covered as this progresses. stay tuned.
Nick Crumpton
crumptoncycles.com
Instagram
"Tradition is a guide, not a jailer" —Justin Robinson
"Mastery before Creativity"—Nicholas Crumpton 2021
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Re: Carbon Building
Incredible thread Nick. Thanks for sharing. Going to make popcorn now
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