Re: [CAD_CAM_EDM_DRO] Digest Number 3452

Don
You can take a look at the laser probe project
in the master5 yahoogroups file section,maybe
this thing could help you (switch/interferometer,
but same level color)
You can also make a very sensitive probe with
a 28 ym piezo polymere film from msiusa.com

Thierry

----- Original Message -----
From: Don Rogers <Don@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Wednesday, November 05, 2003 7:44 AM
Subject: Re: [CAD_CAM_EDM_DRO] Digest Number 3452


> At 05:27 AM 11/5/03 +0000, you wrote:
> >What's your definition of "a very tight tolerance"?
> >At the extreme end, you could play with interferometry...
>
> I would like to be able to detect a position within 0.0001", Closer
would
> be nice, but the expense of this might be overwhelming.
>
> My idea is to set up a move to a position, but have the material be spring
> loaded to allow for a variances in cutting densities so a very precise cut
> could be made each time. IE, I cut butter on one pass and Stainless Steel
> on the next, Both with the same instruction, and both cut to exactly the
> same depth. I am not cutting a metal or wood. The material I am cutting
> varies in density and hardness by direction, so multiple cuts around an
> axis would yield different cut depths if a rigid movement was used. I
need
> to be able to detect that I am at that cut depth for each step around an
> axis. I need to be able to detect that I am at the limit of a cut very
> accurately.
>
> >At the extreme end, you could play with interferometry.
>
> Don't know. I have no experience with this process. Again, cost is an
issue.
>
> Don
>