Re: wood RSG

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Gregory Hunter by way of Terry Fritz <twftesla-at-qwest-dot-net>" <ghunter31014-at-yahoo-dot-com>

Sounds workable. Wood was (and sometimes still is)
used to make airplane propellers, and they held up
pretty well. Have you considered fiberglass/epoxy
printed circuit board stock? 3 or more layers of this
stuff sandwiched together would make a bulletproof
rotor, especially if you made sure the grain was
aligned in a different direction for each layer.
Unclad PCB stock can sometimes be had very cheaply
from surplus sources. If you haunt dumpsters in the
right industrial park, you might even get it free.
Just a thought.

Regards,

Greg
http://hot-streamer-dot-com/greg

--- Tesla list <tesla-at-pupman-dot-com> wrote:
> Original poster: "Mr Gregory Peters by way of Terry
> Fritz <twftesla-at-qwest-dot-net>"
> <s371034-at-student.uq.edu.au>
> 
> I am having difficulty finding some cheap
> epoxy/fibreglass sheet to use 
> for a RSG. I was wondering if anyone has ever tried
> using well dried 
> and prepared plywood? While it isn't the best
> insulator, I would 
> imagine that a polyurethane coated disc of about
> 10-12" diameter would 
> probably insulate well enough. Another plus is that
> high grade plywood 
> can be very strong and is probably better at
> handling high temperatures 
> than most plastics. It is also cheap and easy to
> work with. You could 
> even impregnate the wood with
> polyurethane/acrylic/epoxy, etc using a 
> vacuum. What do you think? 
> 
> Cheers,
> 
> Greg Peters
> Department of Earth Sciences,
> University of Queensland, Australia
> Phone: 0402 841 677
> http://www.geocities-dot-com/gregjpeters
> 
> 
> 
> 
> 


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