Stratasys, Inc.

Barak Glassman

Dan Mordechay

Kiril Lain

Guy Menchik

Itai Lishner

Shmuel Rubin

Mordechay Meron

Hanan Azran

A safety system, for a rotary tray of a three-dimensional printing system comprises a latch having a lock member and being operable to assume a locked state in which the latch prevents the door of the printing system from closing while the lock member prevents the tray from rotating, and an unlocked state in which the latch allows the door to close while the lock member allows the tray to rotate.

System for improving safety in three-dimensional printing

A service station system for a three-dimensional printing system comprises: a bath, having a fast-release connector at a front side thereof, and a hinge at a back side thereof for hingebly connecting an open top of the bath to a surface of the three-dimensional printing system; and a wiper assembly, having a wiper device detachably connected to a wiper base mounted on a rotatable axis passing through the bath. The wiper device wipes a dispensing face of the printing head of the three-dimensional printing system while the head reciprocally moves above the bath between the back side and the front side. The service station system can also comprise a motor for rotating the axis.

Service station for a three-dimensional printing system

A method of additive manufacturing, comprises: dispensing from an array of nozzles an amount of building material formulation to form a layer in a configured pattern corresponding to a shape of a slice of an object, and hardening the layer. Based on the amount and a geometrical characteristic of the slice, a thermal mass of the layer is calculated. A cooling system is controlled in a closed loop control responsively to the calculated thermal mass.

Method and system for controlling a cooling system in three-dimensional printing

A method of three-dimensional printing, comprises: operating a printing head having a nozzle array to dispense a building material formulation, wherein the printing head is directly connected to a cartridge containing the building material formulation, and wherein the printing head comprises a channel conveying a building material formulation received from the cartridge to the nozzle array; discarding the building material formulation from the channel; and connecting a cartridge containing a building material formulation that is different from the discarded building material formulation to the channel.

Method and system for three-dimensional printing

A method of fabricating an object in layers, comprises, for at least one layer: dispensing a building material formulation to form a first portion of the layer, and leveling the first portion by a leveling device; increasing a vertical distance between the first portion and the leveling device; and while a topmost surface of the first portion is exposed and beneath a segment of the leveling device: dispensing a building material formulation to form a second portion of the layer, laterally displaced from the first portion along an indexing direction, and leveling the second portion by the leveling device.

Method and system for leveling a layer in freeform fabrication

A method of calibrating a print head of a printing system comprises applying voltage to the print head to effect a dispensing of liquid material from the print head; receiving, directly from a sensor within the print head, a signal correlative to a change in an amount of liquid in the print head; and varying the voltage responsively to the signal.

Print head and method of calibrating the same

A pressure controlling system for an inkjet printer includes a pressure chamber, a pump fluidically connected to the chamber and adapted for increasing or decreasing the pressure within the pressure chamber, a controllable three port two way valve, and a sensing unit including one or more pressure sensors. The pressure sensing unit is in fluidic communication with the pressure chamber for sensing the pressure therein. The valve has a first port controllably fluidically connectable to the pressure chamber, a second port controllably fluidically connectable to an inkjet print head, and a third port controllably fluidically connectable with atmospheric air. The sensing unit is adapted for sending signals representative of the pressure within the pressure chamber to at least one processor/controller. The pump and the valve are controlled by receiving control signals from the processor/controller(s). There are provided a method for operating the system and a printer including the system.

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Nes Ziona, Israel

Barak Glassman