Re: [CAD_CAM_EDM_DRO] Polished acrylic machining

Hi Danny,

depends on the shape- if its a flat area you can get good results simply by lacquering the parts this hides the m/c'ng defects. I have used this technique to produce good optical clarity on prototypes with little need for excessive polishing.


Nev



----- Original Message ----
From: Danny Miller <dannym@...>
To: CAD_CAM_EDM_DRO@yahoogroups.com
Sent: Tuesday, 14 October, 2008 10:32:51 PM
Subject: [CAD_CAM_EDM_DRO] Polished acrylic machining


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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