3D printing PLA question - Tx/Rx Labs

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Message from discussion 3D printing PLA question
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Date: Fri, 5 Oct 2012 11:41:37 -0500
Message-ID: <CAH9swgTF_0VdzaDzvOemF3m5QxM8KQq-eQ714y_s-sonMFK...@mail.gmail.com>
Subject: Re: [TX/RX Labs] 3D printing PLA question
From: Charles Bornstein <cbo...@gmail.com>
To: txrxlabs@googlegroups.com
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This is not directly on topic with regard to your project, but still may be
interesting.
Here's a link to a page discussing using PLA as a substitute for wax in
lost-wax casting.
The temps are higher than would be suitable for paper, but it still may be
of interest.


http://3dtopo.com/lostPLA/

Charles

On Fri, Oct 5, 2012 at 11:23 AM, Marlin <marlin.mi...@gmail.com> wrote:

> Does anyone have experience with melting away PLA?
>
> BACKGROUND
> A few years ago I was working on very small scale radio controlled
> planes.  Weight was fairly critical and one approach to building
> lightweight airfames was to take a old plastic model and apply tissue
> paper directly to the fuselage as in papier mache.  Then after drying,
> I'd slit the bottom of the shell and carefully remove the plastic from
> the tissue paper.  Inevitably the tissue would crinkle but the final
> would smooth out so it didn't look too bad.
>
>
> THE NEW IDEA
> What would happen if I printed a sacrificial fuselage out of PLA, then
> applied the tissue papier mache to the printed fuselage.  The very
> front of the fuselage would have a large hole and I'm imagining that I
> could put the object in the oven and melt out the PLA.  The oven
> temperature would be fairly low, like 200-300 F.  Does this seem like
> a feasible approach?
>
> Marlin
>
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This is not directly on topic with regard to your project, but still may be=
 interesting.<div>Here&#39;s a link to a page discussing using PLA as a sub=
stitute for wax in lost-wax casting.</div><div>The temps are higher than wo=
uld be suitable for paper, but it still may be of interest.<br>
<div><br></div><div><br></div><div><a href=3D"http://3dtopo.com/lostPLA/">h=
ttp://3dtopo.com/lostPLA/</a></div><div><br></div><div>Charles<br><br><div =
class=3D"gmail_quote">On Fri, Oct 5, 2012 at 11:23 AM, Marlin <span dir=3D"=
ltr">&lt;<a href=3D"mailto:marlin.mi...@gmail.com" target=3D"_blank">marlin=
.mi...@gmail.com</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">Does anyone have experience with melting awa=
y PLA?<br>
<br>
BACKGROUND<br>
A few years ago I was working on very small scale radio controlled<br>
planes. =A0Weight was fairly critical and one approach to building<br>
lightweight airfames was to take a old plastic model and apply tissue<br>
paper directly to the fuselage as in papier mache. =A0Then after drying,<br=
>
I&#39;d slit the bottom of the shell and carefully remove the plastic from<=
br>
the tissue paper. =A0Inevitably the tissue would crinkle but the final<br>
would smooth out so it didn&#39;t look too bad.<br>
<br>
<br>
THE NEW IDEA<br>
What would happen if I printed a sacrificial fuselage out of PLA, then<br>
applied the tissue papier mache to the printed fuselage. =A0The very<br>
front of the fuselage would have a large hole and I&#39;m imagining that I<=
br>
could put the object in the oven and melt out the PLA. =A0The oven<br>
temperature would be fairly low, like 200-300 F. =A0Does this seem like<br>
a feasible approach?<br>
<span class=3D"HOEnZb"><font color=3D"#888888"><br>
Marlin<br>
<br>
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<br>
</font></span></blockquote></div><br></div></div>

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