Where can a non-dentist get it?
-Silas-
Honolulu
----- Original Message -----
From: Walba, Rick <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, October 17, 2000 12:05 PM
Subject: [RCSE] dental materials
> Dental Stone is another usefull item. Cheap, also mixes with water and
molds
> light weight, cement hard parts (high temp also) that demold in 15 min.
>
>
> > ----------
> > From: [EMAIL PROTECTED][SMTP:[EMAIL PROTECTED]]
> > Sent: Tuesday, October 17, 2000 3:21 PM
> > To: [EMAIL PROTECTED]
> > Subject: [Allegro-Lite] Re: My two cents worth
> >
> > Mark, As a Dentist, perhaps I can offer a solution to the bulkhead
> > problem. A dental impression material called "alginate" is
> > inexpensive
> > and very easy to mix up. You mix the alginate powder with water to a
> > cookie dough consistancy, then load the inside cavity (no pun
> > intended)of the pod with the mixed alginate and imbed a pull hook
> > before it sets. Once set, slowly pull the alginate plug (it's fairly
> > flexible, but tears easily)out of the pod and then you'll have a
> > duplicate of the interior. Just slice the plug where you want a
> > bulkhead and trace the section onto the ply. This does assume no
> > undercuts or interferances exist on the inner surfaces of the pod.
> > Alginate costs about $10. a pound (and mixes with water) which would
> > probably make about 10 moulds. I'll even bet if you explain the need
> > to your dentist, he'd give you enough for a few mixes. We're all
> > pretty much techno-feaks as a profession and get a charge out of
> > finding non-dental uses for dental stuff.
> > Dave Malone
> >
> >
> > It's also good to fit the bulkheads and
> > > towhook beam before the mold is closed. Shaping a bulkhead
> > > to fit inside a closed pod is maddening -- you can't see where
> > > the interference is. I don't know how we solve this.
> > >
> > >
> > > - Mark
> >
> >
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