pdp1@EARTHLINK.NET on mon 4 oct 04
them...
Hi Christine,
I have never been around Pug Mills to have any insight about
them, or about their being used as extruders, or, the dies
one might make or have for that...
But, I would guess, that 1/4 inch Lexan would be a good
choice. And scraps of it may be had from various
sheet-plastics suppliers, and some Commercial Window Glass
suppliers from when they cut things from full sheets of it,
for filling their orders.
You can drill and cut your aperature's shapes in Lexan with
conventional hand Tools, such as hand "egg beater" Drill, or
an electric Drill, and a regular Copeing Saw, which would
allow you better, smaller curves than an electric hand held
(so called ) Jig-Saw would. A new Copeing Saw and some
various widths of blades should run you like $12.00 or so,
maybe a little more, if you do not have one already...and,
some small Rasps, or thin bits of shaped Wood with sandpaper
glued onto them with aerosol fabric or paper adhesive, would
work well for finishing touches...
Sheet Aluminum, sheet Steel or other metals would be more
difficult to make your aperatures in, and plywood, while it
would work, would be less neat and tidy than the Lexan...
I do not know if these sorts of Dies benifit from having a
draft, that is, for the sides of the aperature to be a
little wider on one side than on the other, for the
spaerature to taper in other words, or, if so, on which
side, the 'wide' or 'narrow' side would be...
Good luck...
Phil
el ve
----- Original Message -----
From: "Christine Caswell"
> "Next question: Maybe Phil or Vince or a List Member with
an addition to
> their Pugmill could answer. What type/thickness of metal
should I ask to be
> used for fabrication of this plate ? If my memory is
correct, in Elsbeth
> Woody's book on throwing, she fabricated her coils so that
there was a
> male/female profile. I would assume that I would need to
find someone who
> could laser cut(??) the metal so that the pattern was more
exact than "burnt
> out/torched" metal ?
>
> Would the thick cutting boards that are often used to make
templates in hand
> extruders be strong enough ? Example:If I drill out one
hole 1 1/2 inches
> diameter and fit it to the pugmill with bolts,washers,
lock washers and
> nuts, would that work?"
>
>
>
>
> I had a friend loan me his pugmill (a Bluebird? I think)
when I was working
> on a series of very large coiled vases. He made his die
with 3/4"
> plexiglass and just drilled a hole and filed it smooth.
He clamped the die
> to the pugmill with C-clamps. It worked great. I had
nice even long smooth
> coils that took a lot less time. And it didn't harm the
pugmill.
>
> Hope that helps.
>
> -Christine Caswell
> Maine
>
>
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