Re: Cast resin for a cnc mill design - good idea?

Tom,

This has come up before. Check the CCED past msgs.

Light Machines Spectralight mill structure are/were made by Anocast,
which is a division of Anorad industries. The Casting material and
molds are VERY expensive! There was some "advertorial" coverage in
some of the machinist trade mags awhile back.

Greg Pettingill (Try a search on Cote, or Cote') worked with Dennis
Bohlke at super-tech and used aluminum powder in polyurethane for
some router kit parts which Super-tech still sells...

There was a great deal of discussion re: this on the Lathe 2000
egroup. The group became inactive, but the archive may still be
available on yahoo groups.

Ciba-Geigy has several urethane "casting resins" which you should
look into. Again, the main drawback is that the "engineered"
and "commercial" resins and resin/filler mixes are expensive. But
they DO work, and work well!

So if you are going to TLAR engineer or "create" from epoxy, etc.;
we'll all be interested in what you discover.

Hope this helps.

Ballendo

P.S. TLAR? That Looks About Right.

--- In CAD_CAM_EDM_DRO@y..., "Tom Murray" <thomasm923@a...> wrote:
> In the recent past there was a thread covering the topic of using
> epoxy and polyester resins in the construction of mill frames. A
few
> weeks before that thread started, I was surprise to learn that at
> least one commercial manufacturer (Light Machines) builds the
frame
> of their mills out of resin. I began to wonder if this would be a
> good way to build a home-built system, for there are some obvious
> advantages. <snip>
> Tom Murray