RE: Hybrid Machines

From: Lightman, Allan J (
Date: Mon Dec 15 1997 - 20:45:27 EET


I saw such a machine about a year ago at ACR in Tucson, AZ. They were
funded by DARPA. The machine was a CNC (5-axis as I recall) with an
auxiliary delivery head which held an extrusion system, similar to the
multi-jet solidification system from the Fraunhofer Institute. The goal
was to lay down material and then use the CNC to profile the edges and
dimension the layer thickness. They may have also looked into
multi-component deposition. They told me that the work was being done
together with Professor Fritz Prinz at Stanford.

Allan J. Lightman, Ph.D.
University of Dayton Research Institute
Dayton, OH 45469-0150, USA

T: +1-937-229-3966

> -----Original Message-----
> From: Yakov Horenstein []
> Sent: Monday, December 15, 1997 1:34 PM
> To: RP ML
> Subject: Re: Hybrid Machines
> Terry T. Wohlers wrote:
> >Yakov Horenstein wrote:
> >
> >> Maybe it's a dumb question, but how come no-one has come up with a
> >> combined additive/subtractive fabricator?
> >
> >As I'm sure you're aware, Cubital and Sanders Prototype have combined
> these
> >methods. Perhaps you're referring to the use of milling, drilling,
> etc.,
> >to shape the object, versus flatten each layer.
> Yes, that's exactly what I meant. I apologise for not phrasing the
> question
> more precisely. As several people pointed out, LOM, Cubital, Sanders
> etc are
> all hybrid machines, but my question was not referring to those
> systems, but
> to a combined RP/CNC machine.
> ------------------------
> Yakov Horenstein
> Milano, Italy

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