RE: [CAD_CAM_EDM_DRO] Re: Polished acrylic machining

I was at Piper Plastics the other day and asked about how I can shine up different types of clear materials. Acrylic needs a quick smear of the glue used on acrylic. Just a very light thin smear, will react and start "melting" the surface. He said torch for polycarbinate. Very, very, careful cause too much and bubbles and burning will start happening :)

________________________________

From: CAD_CAM_EDM_DRO@yahoogroups.com on behalf of aclausing2003
Sent: Tue 10/14/2008 5:45 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] Re: Polished acrylic machining



Hi,
I have used a small torch to feather the edges of clear acrylic,and
you have to use with care.Propane torch is an excelent choice, but as
I said ,use with small strokes, and feather the heat to the
material,takes alittle practice ,but may work for you well. HTH Hank
S.

--- In CAD_CAM_EDM_DRO@yahoogroups.com <mailto:CAD_CAM_EDM_DRO%40yahoogroups.com> , Danny Miller <dannym@...>
wrote:

>
> Let's say I wanted to do some Taig CNC milling on an acrylic or
> polycarbonate block. The result needs to have some decent optical
> clarity but I expect the tooling will result in a fairly scratched,
> milky surface.
>
> Is there any simple answer for this? I know there are plastic

polishes

> that can kinda buff that out but I'd expect major problems getting a
> Dremel buffer wheel into small low spots. Is there any magic

cutting

> head or something that results in a smooth surface, or some special

tool

> or chemical for removing them?
>
> Thanks
>

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