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Re: Makes me wonder
By:Don
Date: 1/24/2001, 2:35 am
In Response To: Re: Makes me wonder (Shawn Baker)

: I wonder if the way Eddyline makes their carbonlite kayaks relieves those
: curved-hull stresses. If they're vacuum-forming, the heat would soften the
: plastic enough that deformation from the curved-hull state would cause
: stresses, rather than the deformation into the curved hull. Yeah, on a
: stressed, curved panel, you would definitely see stress cracks at
: through-hulls.

: I wonder if the hull could be heat-treated. Similar to heat-treating or
: annealing of steel. Make a large oven and put the finished hull in it.
: Raise the temperature high enough to relieve the stresses, but no so high
: the boat gets soft and deforms.

: Heck, a lexan or plexiglas kayak model would look pretty cool. I'm not saying
: Johnnie shouldn't build his--I'm thinking that building that sort of model
: for my own wall would be neat!

: Shawn

Shawn

Controlling the temperature of the plastic across the entire kayak might be difficult. Perhaps you can locally heat the panels of plastic as you bend them into position, before bonding. This would be analogous to steaming wood at the point you want it to bend.

For a model boat plexiglas might be cheeper to work with. Also I believe it is more scratch resistant.

As to how Eddyline does it. I imagine that well engineered vacuum modeling would solves some of the problem. Also the carbonlite they use may be less prone to stress cracks than Lexan.

As for me I sunburn easily, so I will stick with wood. :)

Don

Messages In This Thread

Glass Kayak
Johnnie -- 1/21/2001, 1:32 pm
Not suitable for scottish paddlers! :) *NM*
Marcelo -- 1/24/2001, 11:06 am
Re: Not Fiberglass Thank God!
George Cushing -- 1/23/2001, 2:33 pm
Re: Glass Kayak
Ken Brunton -- 1/23/2001, 2:30 pm
Re: Check this out, Lexan kayak from Innovex Corp
Grant Goltz -- 1/23/2001, 12:23 pm
Re: Glass Kayak
Johnnie -- 1/22/2001, 10:29 pm
Re: Glass Kayak
David Dick -- 1/23/2001, 6:57 am
Re: Glass Kayak
Don -- 1/22/2001, 10:16 pm
Re: Makes me wonder
Shawn Baker -- 1/23/2001, 10:44 am
Re: Makes me wonder
George Cushing -- 1/24/2001, 6:11 am
Re: Aren't Trees Amazing?
Shawn Baker -- 1/24/2001, 10:22 am
Re: Aren't Trees Amazing?
Grant Goltz -- 1/24/2001, 12:36 pm
Re: Aren't Trees Amazing?
Shawn Baker -- 1/24/2001, 12:55 pm
Re: Strip-deck C
Grant Goltz -- 1/25/2001, 12:49 pm
Re: Makes me wonder
Don -- 1/24/2001, 2:35 am
Re: Heat Treating Plastic
Shawn Baker -- 1/24/2001, 10:17 am
Re: Glass Kayak
John Schroeder -- 1/22/2001, 9:58 pm
Re: Polycarbonate *Pic*
Shawn Baker -- 1/22/2001, 11:29 am
Re: Polycarbonate
Lee -- 1/23/2001, 1:06 am
Re: Reading Material
Shawn Baker -- 1/23/2001, 10:31 am
Methyl Methacrylate
Pete Rudie -- 1/22/2001, 4:39 pm
Re: Help Pete!
George Cushing -- 1/23/2001, 3:00 pm
Re: Help Pete!
Pete Rudie -- 1/24/2001, 1:05 am
Re: Allright Smarty Pants!
George Cushing -- 1/23/2001, 2:56 pm
I wonder
mike allen -- 1/22/2001, 5:31 pm
Re: I wonder VACUUM FORMING
Eric Schade (shearwater boats) -- 1/22/2001, 7:30 pm
Re: I wonder VACUUM FORMING
John Monfoe -- 1/23/2001, 6:46 am
Re: Big Aluminum Billet
Spidey -- 1/23/2001, 1:31 am
Re: I wonder VACUUM FORMING
mike allen -- 1/22/2001, 8:06 pm
Re: Glass Kayak
Spidey -- 1/22/2001, 1:14 am
Re: Glass Kayak
Arlen -- 1/22/2001, 11:32 pm
Re: Thickness Shear Strength
Spidey -- 1/23/2001, 12:35 am
Re: Thickness Shear Strength
Ken Brunton -- 1/23/2001, 2:16 pm
Re: Glass Kayak
Victor lapostolle -- 1/22/2001, 1:54 am
Re: Glass Kayak
John Monfoe -- 1/22/2001, 6:17 am
Re: Both Glass Kayaks! :)
Spidey -- 1/23/2001, 12:16 am
Lexan Kayak
Paul G. Jacobson -- 1/21/2001, 11:33 pm
Re: lots of suntan lotions
Tony -- 1/22/2001, 6:48 pm
Re: Glass Kayak
daren -- 1/21/2001, 10:14 pm
Re: Glass Kayak
David Hanson -- 1/22/2001, 12:29 pm
Re: Glass Kayak
Jon -- 1/21/2001, 7:54 pm
Re: Glass Kayak
tom preska -- 1/21/2001, 9:38 pm
Re: Glass Kayak
Johnnie -- 1/21/2001, 10:13 pm
Re: Glass Kayak
David Dick -- 1/21/2001, 11:25 pm