3m Innovative Properties Company

Solventum Intellectual Properties Company

Other

Christian A Richter

Bastian P Kirchner

Rudolf Schmid

Rainer K Dittmann

Anja Friedrich

Anja B Fischer

Anthony A Bredebusch

Malte Korten

Manfred Harre

Emir Jelovac

Özcan Dönmez

Korbinian Schepke-Gerlach

Stefan K Welker

Thomas Müller

Gioacchino Raia

Sebastian Guggenmos

Michael K Schaaf

Ralf Kelz

Andreas Bergsträβer

Michael Jahns

Gallus Schechner

Jens Gramann

Andreas G Herrmann

Daniel D Oberpertinger

Erich Sendelbach

Benjamin C MacMurray

Thomas K Müller

Andreas Johannes Boehm

James D Hansen

Richard E Raby

Adrian S Eckert

Helmar B Mayr

Saswata Chakraborty

Carsten Franke

Ralf M Paehl

Michael Knee

Wolfgang Weinmann

Bernd K Burger

Bernhard Hofmann

Hans R Schnagl

Wolf-Dieter Krause

Jeffrey N Bartow

Dietmar Blees

Rainer Schmitz

Korbinian Gerlach

Gareth A Hughes

Karin Watzek

Kyle C Picha

Oezcan Doenmez

Günter Hertlein

Karin Zanklmaier

Andreas Bergstäβer

Nicholas S Wren

Matthew T Lingscheit

Jesse J Gilles

Benjamin C Mac Murray

Leif J Erickson

Eric H Tsai

Ralf M Kelz

ÖZcan DÖNMEZ

Thomas K MÜLLER

A 3D printing system is disclosed, comprising a 3D printing device with a build plate and at least two workpiece holders, each having a manufacturing surface for additive manufacturing. The system includes an adapter with recesses for receiving portions of the workpiece holders, allowing the workpiece holders to be releasably attached to the build plate. The system also integrates post-processing devices controlled by a handling robot and a controller to streamline the manufacturing process, ensuring high precision and efficiency. Additionally, the disclosed technology covers a method for manufacturing at least two workpieces using the 3D printing system, which includes steps for hardening layers of material and removing workpieces post-production. Furthermore, the system includes an adapter set for attaching workpiece holders to the 3D printing device, enabling efficient transitions between different manufacturing stages and enhancing overall productivity.

3D printing system and method for manufacturing workpieces and adapter set for attaching workpiece holders to a 3D printing device

The present disclosure provides apparatuses and methods for manufacturing three-dimensional objects. Each additive manufacturing apparatus () includes: a) a reservoir () for receiving hardenable material; b) a first movable light engine () providing a first light radiation configuration; a second light engine () providing a second light radiation configuration that is different than the first light radiation configuration; and d) a light altering structure (). The light altering structure is located between the reservoir and light radiated from at least one of the first movable light engine or the second light engine. The first movable light engine is configured to radiate light onto a first focal plane () within the reservoir containing the hardenable material and the second light engine is configured to radiate light onto a second focal plane () within the reservoir containing the hardenable material. The method includes: a) obtaining a hardenable material disposed in a reservoir; b) selectively radiating light having a first light radiation configuration from a first movable light engine; and c) selectively radiating light having a second light radiation configuration from a second light engine onto a second focal plane within the hardenable material. The apparatuses and methods can advantageously form objects having different resolutions on demand using the same apparatus, plus optionally can blend light from multiple light engines.

Additive manufacturing apparatus including two light engines and a light altering structure and a method of additive manufacturing a three-dimensional object

The apparatus () includes a housing (), a chamber () disposed in the housing, at least two light emitting diodes (LEDs) () disposed within the housing (), and a user interface () disposed on an exterior () of the housing. The chamber () is adaptable to each of an open, closed, and hermetically sealed configuration. The chamber () includes a material transparent to actinic radiation and light from the LEDs () enters the chamber from more than one direction. The user interface () includes a display () and program switches () configured to adjust at least three operational parameters of the apparatus. The apparatus () further includes a vacuum pump () operatively coupled to the chamber (). The system includes the apparatus () and an article (). An article includes layers of at least one photopolymerized crosslinked composition and a low extractable component content. A method of post-curing an article includes obtaining an article (), placing the article in an apparatus (), inputting a post-cure program or accessing a saved post-cure program through the user interface (), and running the post-cure program. The post-cure program includes light intensity provided by a light source () and length of time of light provided by the light source (), plus a delay time between initiation of light provided by the light source () and initiation of vacuum pulled by the vacuum pump () and/or a delay time between initiation of vacuum pulled on an interior of the chamber () by the vacuum pump () and initiation of light provided by the light source ().

Apparatus, system, method of post-curing an article, and post-cured article

A device () for spinning a 3D printed workpiece (). The device has a rotor () for spinning about a spinning axis (A) and a receptacle () for holding the workpiece (). The receptacle () is pivotally attached to the rotor () for swiveling about a swivel axis (B) that is transverse to the spinning axis (A). The pivotal attachment enables swiveling of the receptacle () between a first angular orientation relative to the spinning axis (A) and a different second angular orientation relative to the spinning axis (A). The device () further has a balancing weight () that is movably arranged relative to the receptacle (). The balancing weight () is lockable at different distances relative to the receptacle ().

Device for spinning a workpiece

A system () for washing a 3D-printed object (). The system () has a washing device () and a workpiece () that includes the 3D-printed object (). The washing device () has a container () that forms a process chamber () for receiving a liquid cleaning agent (), and the container () has an inlet () into the process chamber (). The workpiece () further has a support structure () that supports the 3D-printed object () and a base () supporting the support structure (). The base (), in a mating relationship with the inlet (), forms a restraint preventing the workpiece () from passing through the inlet () in a situation in which the workpiece () is placed with the 3D-printed object () located within the process chamber ().

System for washing a 3D-printed object

A dental material dispensing device has a plunger means which for dispensing the dental material is movable for urging at least one component of a dental material toward a dispensing area. The device further has cure control means with an energy source and a flow path on which the dental composition and/or the dental material flows past the energy source during dispensation. The device is operable for exposing the dental composition and/or the dental material to a specific energy by control of the energy source and/or by control of the speed of the flow of the dental composition and/or the dental material on the flow path. The device is configured for dispensing a coherent strand of dental material in a dispensing cycle. The device is further configured for operating in a first dispensing mode and additionally in a second dispensing mode during the same dispensing cycle. The ratio between the specific energy in the second dispensing mode and the specific energy in the first dispensing mode is smaller than 1.

Dental material dispensing device and a method of dispensing a dental material

A method of making a physical object by additive manufacturing. In the method a hardenable primary material is provided, the object is built up by successively hardening layers of the hardenable primary material, and the object is cleaned from excess material by moving the object and thereby generating a mass inertial force in the excess material. The invention facilitates the making of objects by additive manufacturing.

Method of making a physical object by additive manufacturing

A device for progressively building up an object from a light hardenable material. The device has a perforated build platform for the object. The build platform forms a build surface that faces a light source. The build platform and the light source are positionable relative to each other by computer control. The device is further configured for supplying the light hardenable material through the perforation of the build platform for building up the object. The invention enables the making of colored objects by stereolithography.

Device and method for progressively building up an object from a light hardenable material

The present invention relates to a delivery system () for the release of a dental composition mixed from two or optionally three components. The delivery system has a mixer (), a cartridge () with three compartments and a switchable bypass valve () for bypassing the third component from the mixer. The present application further relates to a method of dispensing a dental composition.

Delivery system for a dental composition

A system for dispensing a dental material comprises a cartridge from which the dental material is extrudable. The cartridge comprises a operating means and an interface for transmitting a cartridge output based on a user input. The system further has a dental dispensing device having a receptacle for receiving the cartridge and an interface for receiving the cartridge output. The system helps maximizing reliability and maximizing safety in operation for dispensing dental material.

System and device for dispensing a dental material and a cartridge for use with the system or device

A device for dispensing a dental material includes a nozzle head, a hand piece and a locking mechanism for locking the nozzle head and the hand piece. The locking mechanism includes a snap connection and a screw connection. The locking mechanism is operable between a locked position in which the snap connection is engaged for retaining the nozzle head and the hand piece with each other and in which the screw connection is disengaged; and a secured position in which the snap connection is disengaged and in which the screw connection is engaged for retaining the nozzle head and the hand piece with each other; and a released position in which the snap connection and the screw connection are disengaged.

Device for dispensing a dental material with locking mechanism

A method of making a dental workpiece is provided. The method comprises the steps of suspending machining of the workpiece, exposing the workpiece to a first air jet; and causing relative movement between the first air jet and the workpiece under numeric control. The method may facilitate manufacturing of dental workpieces.

Method and device for making a dental workpiece

A system and method for sintering dental restorations. The system can include a monolithic sintering support comprising a surface, and at least one dental restoration positioned in direct contact with the surface of the monolithic sintering support. The method can include providing a monolithic sintering support comprising a surface, positioning a dental restoration in direct contact with the surface, and sintering the dental restoration while the dental restoration is in direct contact with the surface of the monolithic sintering support to form a sintered dental restoration.

System and method for sintering dental restorations

A device for dispensing a dental composition comprises a piston for extruding a component of the dental composition from a container. The device has a roller drive for displacing the first piston. The roller drive comprises cooperating first and second rollers, and each of the rollers have a roller surface with a radial rib profile. The rollers are arranged for rolling with their roller surfaces on one another. The invention may help providing for a relatively reliable and compact device.

Device for dispensing a dental composition

Cartridges for mixing machines

Growing community of inventors

Feldafing, Germany

Christian A Richter