Path: utzoo!mnetor!tmsoft!torsqnt!jarvis.csri.toronto.edu!rutgers!gatech!hubcap!madhu
From: madhu@hubcap.clemson.edu (m  a  d  h  u)
Newsgroups: comp.graphics
Subject: Stereo-Lithography: "Printing" Solid Parts
Keywords: Stereo-Lithography Apparatus (SLA),"Solid" graphic parts
Message-ID: <6514@hubcap.clemson.edu>
Date: 20 Sep 89 03:23:51 GMT
Organization: Clemson University, Clemson, SC
Lines: 36

Greetings:
	A month back I posted to this group asking for CAT scan files
of human anatomical parts. These files were to be input into an editor
I was developing. The output would go to the SLA machine which allows
the graphical model to be created as a "real solid".

	Like all Netzy requests, a zillion requests for more
info on this laser driven process was received while a *few* people were kind
enough to part with their CAT scans. These few people will be actually shining
different lights on a solid model they can *feel* and *touch*. They will
shortly be one with their CAT scans... Why ??
..because these *few* people will be receiving their own parts shortly:

	Thilaka Sumaneeshwara File: Face model
	Everson	Files	: Female Chest (this got high priority)
	Mehboob/Greisen Files : Ribs

	*THANK YOU* Everybody for responding. :-)))
-------------------------------------------------------------------
	For the other curious people i will post three brief 
	explanations on:

	How the SLA plots/builds a 3-D model;
	The surface computation(triangulation, normal computation, slicing
	computation) involved;
	Surface Texture specification (Texture like in *feel*);

	The 3-D editor which does all the computation etc. will be shortly
	going PD. It is currently being tested on a SUN 4/110 and was 
	ported today to the Mac II (45 minutes to port including the data 
	transfer!). You need to have HOOPS at your local site for customi-
	-zation.

	madhu
.