Re: Ply grain across the

Posted by Alex Ferguson on Aug 22, 2004

[Charlie wrote]

:In any 3-ply plywood the grain orientation is very important. In 5-ply it's not so critcal.

If it is critical, in what way? Or in what way do you considier it critical? I'm not sure why 5 ply was mentioned, (previous writer) far too heavy for a kayak.

With the two layers of grains across the panel, there'd be greater stiffness though personally I have never been in a possition where it would have mattered.

The builder knows that there will be twice as many joins but was going to jig, cut and vacuum bag glue the sheets before marking and cutting panels

The Mac50 can be found at -

http://home.clear.net.nz/pages/grantglazer/Kayak/Sandy.htm

http://home.clear.net.nz/pages/grantglazer/Kayak/Designs.htm

The second page has comments by a couple of different builders, near the bottom of the page.

Alex

In Response to: Re: Ply grain across the by C. fronzek on Aug 19, 2004

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