Re: How fine can you go?

From: Lee Eisinger (
Date: Wed May 19 1999 - 20:45:24 EEST

Read your post on the RPML re:the steps. Would it sove your problem if
we could over-coat your item, then polish out the layers? We have done
this on some other pats with success. Our purpose was removing layering
without removing any of the SLA material. We can build with our blue
material so that you can see what you are doing. We have a polisher who
can polish this up to about 1500 grit paper which is the level normally
used for diamond finishes. You mentioned some channels if you are
interested could you clarify/ If you wish call me at (800) 432-ETCH
(3824). Hope we can be assistance.

Lee Eisinger
Akron Metal Etching
Akron, OH

Glyn Churchman wrote:

> I wanted to pass this along for the RP community to comment on. It
> appeared today on the model making list. I am guessing that it is not
> possible. If you make the assumption that they are going to investment
> cast a metal part, would anyone have any ideas? Here is the post:
> Has anyone come across any new RP machines with build levels smaller
> that the Sanders machine? The Sanders has a Build layer: 0.0005 in.
> An engineer came to me with a upcoming project that will have small
> channels for a medical instrument. Micro Fluid Dynamics is greatly
> affected by the steps left behind. Believe it or not he is looking
> for one in the 5-10 microns. (This is where you might be tempted to
> laugh)
> Sincerely,
> Glyn Churchman@Prototech, Inc.

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