Interesting Kickstarter Project
05-09-12 | 02:10 PM
#1
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From: Buffalo, NY
Interesting Kickstarter Project
05-09-12 | 02:34 PM
#6
You gonna eat that?
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From: Fort Worth, Texas Church of Hopeful Uncertainty
Bikes: 1966 Raleigh DL-1 Tourist, 1973 Schwinn Varsity, 1983 Raleigh Marathon, 1994 Nishiki Sport XRS
Why not print a tube pattern on a flat sheet of metal, fold it up and glue / rivet it together? With our method, frames can be “printed” at a local shop and assembled by anyone who can glue and operate a rivet gun. Also, our technique skips any welding that can weaken the the frame material by creating heat affected regions at the joints. Heat affected regions soften the material near welded joints.
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I stop for people / whose right of way I honor / but not for no one.
Originally Posted by bragi 
"However, it's never a good idea to overgeneralize."
I stop for people / whose right of way I honor / but not for no one.
Originally Posted by bragi "However, it's never a good idea to overgeneralize."
05-09-12 | 02:52 PM
#9
:)
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From: duluth
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05-14-12 | 12:15 PM
#13
You gonna eat that?
Joined: Sep 2008
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From: Fort Worth, Texas Church of Hopeful Uncertainty
Bikes: 1966 Raleigh DL-1 Tourist, 1973 Schwinn Varsity, 1983 Raleigh Marathon, 1994 Nishiki Sport XRS
I'm an engineer so I realize this, but welding and brazing are not as sensitive to post-assembly maintenance and environmental conditions.
__________________
I stop for people / whose right of way I honor / but not for no one.
Originally Posted by bragi "However, it's never a good idea to overgeneralize."
I stop for people / whose right of way I honor / but not for no one.
Originally Posted by bragi "However, it's never a good idea to overgeneralize."
05-14-12 | 12:20 PM
#14
Fredly
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Actually, glued CAN have better integrity than welding. Just ask Lotus. The lotus Elise is glued together with a glue that chemically bonds at around 700f and the bonding IS stronger than steel welds.
Come to think of it, wish we could use that stuff for making bike frames.
Come to think of it, wish we could use that stuff for making bike frames.
05-14-12 | 01:32 PM
#16
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From: Chico, CA
Bikes: Colnago C59 Italia, 1981 Bianchi Pista
Actually, glued CAN have better integrity than welding. Just ask Lotus. The lotus Elise is glued together with a glue that chemically bonds at around 700f and the bonding IS stronger than steel welds.
Come to think of it, wish we could use that stuff for making bike frames.
Come to think of it, wish we could use that stuff for making bike frames.
A friend (and fellow engineer) and I were talking about using 3M industrial epoxy to build a lugged bike--given adequate preparation, it's certainly doable. Hell, the early carbon bikes were bonded together in aluminum lugs...though that didn't always work out.
05-14-12 | 01:48 PM
#18
Seņor Member
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From: Oakland
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05-14-12 | 01:50 PM
#19
You gonna eat that?
Joined: Sep 2008
Posts: 14,917
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From: Fort Worth, Texas Church of Hopeful Uncertainty
Bikes: 1966 Raleigh DL-1 Tourist, 1973 Schwinn Varsity, 1983 Raleigh Marathon, 1994 Nishiki Sport XRS
One could say that about any idea on kickstarter.
__________________
I stop for people / whose right of way I honor / but not for no one.
Originally Posted by bragi "However, it's never a good idea to overgeneralize."
I stop for people / whose right of way I honor / but not for no one.
Originally Posted by bragi "However, it's never a good idea to overgeneralize."
05-14-12 | 03:10 PM
#20
Senior Member
Joined: Nov 2010
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That's not really relevant, though. The engineers at Lotus know what they're doing...these people clearly do not. In fact, their entire premise for why welding is weak is just plain wrong.
A friend (and fellow engineer) and I were talking about using 3M industrial epoxy to build a lugged bike--given adequate preparation, it's certainly doable. Hell, the early carbon bikes were bonded together in aluminum lugs...though that didn't always work out.
A friend (and fellow engineer) and I were talking about using 3M industrial epoxy to build a lugged bike--given adequate preparation, it's certainly doable. Hell, the early carbon bikes were bonded together in aluminum lugs...though that didn't always work out.
Problem solved.
