8 Nov
2011
8 Nov
'11
10:31 a.m.
On Tue, 8 Nov 2011 17:49:41 +0000
Mark Benson <md.benson at gmail.com> wrote:
Moulding uses a homologous mass of molten plastic,
which sets that way, to give it strength. I wouldn't trust 3D printed plastic without
proof it was adequately impact resistant.
Yes. The 3D printed stuff doesn't have
the properties like moulded
plastic. But it is astonishing robust and durable. The surface is a
bit brittle. At $WORK we use 3D printed parts for constructing test
fixtures. The problem with the surface is easy to fix: Grind and
varnish. Previously those parts where CNC milled out of aluminium. But
that is much more expensive. If the 3D printed stuff is porous, you can
immerse it in epoxy resin to strengthen it.
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\end{Jochen}
\ref{http://www.unixag-kl.fh-kl.de/~jkunz/}