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1. (WO2018166827) PRINTER UNIT FOR A 3D-PRINTING APPARATUS AND METHOD

Pub. No.:    WO/2018/166827    International Application No.:    PCT/EP2018/055324
Publication Date: Fri Sep 21 01:59:59 CEST 2018 International Filing Date: Tue Mar 06 00:59:59 CET 2018
IPC: B29C 64/209
B29C 64/232
B29C 64/118
B33Y 30/00
Applicants: PHILIPS LIGHTING HOLDING B.V.
Inventors: KETTELARIJ, Hendrik, Jan
TSANG, Peter, Tjin, Sjoe, Kong
KROES, Hans
Title: PRINTER UNIT FOR A 3D-PRINTING APPARATUS AND METHOD
Abstract:
A printer unit (100) for a 3D-printing apparatus for deposition of a printing material, as well as a method of 3D printing, is provided. The printer unit comprises a printer head (105) comprising a nozzle (110). The printer head is resiliently suspended in the printer unit in a vertical direction by at least one resilient means (120), allowing a vertical movement of the printer head during deposition of the printing material. The suspended printer head in its equilibrium is positionable above the underlying material at a vertical distance (Δz1) before deposition. During deposition of printing material, the at least one resilient means is configured to become biased by a vertical force (F3) on the nozzle from the printing material on the underlying material, such that the printer head moves from its equilibrium into a position at a desired vertical distance (Δz1) from the underlying material.