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In my
case I need eight 6" viewports 1 1/2" thick, is there any way just to get
a rectangular piece 14" by 28" and have that shrunk?
brian
I'll see what I can work out
with Polycast. The problem is always going to be finding "a bunch of
guys" who are ready to invest in the material at the same time as anyone
else. You might recall that Kittredge provided (8) eight-inch viewports
for sale on PSUBS a few years ago, and it took about 3 years before they
finally all sold. That was much longer than I ever thought it would take
to sell them. So your chances of finding someone ready to purchase
acrylic at the same time you are ready, may not be as high as we would like to
think.
The cost for a sheet is not cheap. Eplastics is showing
$2,584 for 1.5x48x96 sheet, however without specifications I don't know if
that particular material is PVHO rated and would assume it wasn't.
Depending upon the cost, PSUBS may be able to absorb the investment in PVHO
approved material and holding it. Segments could then be "ordered" via
the website. Perhaps members get it at cost and non-members pay some
higher amount. We'll can talk about this further on the member forum
depending upon what I get out of Polycast.
Jon
On 9/22/2010 9:45
AM, Greg Cottrell wrote:
So what to do? Get
a bunch of guys together, go in on a full sheet of pre-shrunk polycast (that
will be very flat and distortion-free) chop this sheet up into smaller
pieces, machine them into viewports, and then anneal the parts in accordance
with the schedule in Stachiws book. No fuss no
muss.
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