摘要 |
<p>The device contains a vessel (6) filled with a hardenable liquid medium (2) and controllable means (18) which can be provided on top of this vessel (6) to make a layer of liquid medium harden according to a specific pattern, characterized in that it contains a casting bob (4) which is erected on top of the vessel (6) and is provided with a slot (12) at the bottom, and means (5) to move said casting bob (4) in a relative manner over the surface of the medium (2) contained in the vessel (6). The medium (2) is cast in the form of a stable curtain (3) on a support or a previously formed layer.</p> |