On Wed, 25 Apr 2012 13:55:48 -0400, "Flying Pig"
wrote:

Strataglass I can come by, and it's possible that my canvas shop has some
mylar, if that's common - but I'd inferred from what you'd said that it
would be harder/stiffer than that. From our windows, it seems to me that it
would not make a very straight (straighter than saran wrap, of course!)
surface, as flexible as it is, and what I see canvas folks using for
patternmaking is VERY floppy, not very heavy stuff..

Inferred is that the stuff you're talking about is pretty flexible?

===

Mylar comes in different thicknesses. The kind I'm thinking of is
probably comparable to crispy new (and relatively heavy) Strataglass.
It needs to be heavy enough that it is relatively self fairing as you
wrap it around the shaft. You can wrap multiple layers of course for
extra body.

On Wed, 25 Apr 2012 23:01:32 -0400, Wayne.B
wrote:

Mylar comes in different thicknesses. The kind I'm thinking of is
probably comparable to crispy new (and relatively heavy) Strataglass.
It needs to be heavy enough that it is relatively self fairing as you
wrap it around the shaft. You can wrap multiple layers of course for
extra body.

Thinking about it, thick is not good unless it's cut to perfectly butt
the edges, which would be difficult. Otherwise, the epoxy will make a
shaft increasing in diameter to a raised "cliff-face" where the mylar
wraps over itself. The thicker the material, the longer the incline
portion.

Wish I could draw a picture, but let's say the wrap is 1/4" thick (I
know, that's ridiculous, but..). Wrap it around a shaft and look at
the end. You'll see a curving right triangle with the base 1/4".

Rick