Improvements in or relating to the manufacture of three-dimensional objects

(19)

(11)

EP 0 712 051 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	18.06.1997 Bulletin 1997/25

(43)	Date of publication A2:
	15.05.1996 Bulletin 1996/20

(21)	Application number: 95308046.2

(22)	Date of filing: 09.11.1995

(51)	International Patent Classification (IPC)⁶: G03G 15/045

(84)	Designated Contracting States:
	DE FR GB IT NL

(30)

Priority:

09.11.1994 US 336594

(71)	Applicant: TEXAS INSTRUMENTS INCORPORATED
	Dallas Texas 75265 (US)

(72)	Inventor:
	Penn, Steven M. Plano, TX 75025 (US)

(74)	Representative: Blanco White, Henry Nicholas et al
	ABEL & IMRAY Northumberland House 303-306 High Holborn London WC1V 7LH London WC1V 7LH (GB)

(54)	Improvements in or relating to the manufacture of three-dimensional objects

(57) A prototype including both a main part and support part is fabricated on a platform. A first charging device charges a first charged area and a first material dispensed by a first dispensing device is attracted to the first charged area. A second charging device charges a second charged area and a second material dispensed by the second dispensing device is attracted to the second charged area. The first and second charging devices as well as the first and second dispensing devices are moveable to build a layer of the main part and support part.

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