Printer unit for a 3D-printing apparatus and method
AssigneeSignify Holding B.V.
InventorsHans Kroes, Hendrik Jan Kettelarij, Peter Tjin Sjoe Kong Tsang
Life of this patent
Estimating the term…
Abstract
A printer unit (100) for a 3D-printing apparatus. The printer unit comprises a printer head (105) comprising a nozzle (110) arranged to deposit printing material from the printer unit, a pressure sensor (120) configured to sense a pressure exerted on the printer head from the printing material, and a control unit (130) coupled to the pressure sensor. The control unit is configured to control the speed of the printer head based on a transfer function from the pressure sensed by the pressure sensor to a desired speed of the printer head, in order to maintain a constant deposition of the amount of printing material per length unit of deposited printing material.
Claims13
A printer unit for a 3D-printing apparatus, comprising
- a printer head comprising a nozzle arranged to deposit printing material from the printer unit onto an underlying material, wherein during deposition of the printing material, said printer head moves with a movement speed S relative to the underlying material
- a pressure sensor configured to sense a pressure Ps exerted on the printer head from the printing material, and
- a control unit coupled to the pressure sensor, wherein the control unit is configured to control the movement speed S of the printer head based on an increasing transfer function f from the pressure sensed Ps by the pressure sensor to a desired movement speed Sd of the printer head, in order to maintain a relatively constant deposition of the amount of printing material per length unit of deposited printing material.
A method for 3D-printing an object by a printer unit comprising a printer head comprising a nozzle arranged to deposit printing material from the printer unit onto an underlying material, wherein during deposition of the printing material, said printer head moves with a movement speed S relative to the underlying material;
- said method comprising the steps of:
- sensing a pressure exerted on the printer head from the printing material, and
- controlling the movement speed S of the printer head based on an increasing transfer function from the pressure sensed by the pressure sensor to a desired movement speed of the printer head, in order to maintain a relatively constant deposition of the amount of printing material per length unit of deposited printing material.
Dependencies are inferred from the claim text.