3m Innovative Properties Company

Solventum Intellectual Properties Company

Dietmar Blees

Thomas Weise

Ralf M Paehl

Malte Korten

Gioacchino Raia

Richard E Raby

Joachim Zech

Adrian S Eckert

Ming-Lai Lai

Christian A Richter

Helmar B Mayr

Andreas G Herrmann

Bastian P Kirchner

Hendrik M Grupp

Anja Friedrich

Daniel D Oberpertinger

Ralf Schlimper

Thomas K Müller

David K Cinader

André Golcher

Hendrik Grupp

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

A method of building up at least a first () and a second () physical workpiece from a light hardenable material () on a 3D printing device (). The method has the steps of providing to the 3D printing device a first dataset for building up a first workpiece; starting a first print job based on the first dataset; providing to the same 3D printing device a second dataset for building up a second workpiece after the start the first print job; and starting a second print job based on the second dataset before finishing the first print job.

Method of time-shifted and time-overlapping building up physical workpieces by additive manufacturing

The invention relates to a radiation curable composition for additive-manufacturing processes, the composition comprising (meth)acrylate component(s) not comprising an urethane moiety having a molecular weight Mw of at least 1,000 as Component A1, photo initiator as Component B, red, yellow or orange dye or combination thereof as Component C, blue dye having a light absorption band in the range of 350 to 420 nm as Component D, and optionally stabilizer as Component E. The invention further relates to a process of producing an elastomeric 3-dim article from the radiation curable composition in an additive-manufacturing process and the obtained elastomeric 3-dim article.

Radiation curable composition for additive manufacturing processes

An orthodontic bracket having a bracket pad (), and a bracket body () extending from the bracket pad. The bracket has a slot () for receiving an orthodontic archwire. The slot has a proximal slot side face (), a distal side face () and a slot ground face (). The bracket has at least one archwire support structure () that forms a support surface () in a plane of the slot ground face. The support surface is spaced from the slot ground face. The archwire support structure forms a flat and protrudes in a dimention generally parallel to a slot cross axis. The invention help maximizing the tip control in an orthodontic treatment.

Orthodontic bracket and a method of making an orthodontic bracket

A method of making a physical mockup the method comprises the steps of providing a virtual dental arch, a virtual set of orthodontic brackets for the virtual dental arch and a virtual set of analogs. Each analog is associated with a virtual bracket of the virtual set of brackets and the shape of at least one of the analogs differs from the shape of the associated bracket. The method further comprises the steps of providing a virtual mockup in which the virtual dental arch and the set of virtual analogs are merged, and manufacturing the physical mockup based on the virtual mockup. The physical mockup represents a shape composed of the shape the dental arch and the shape of the set of analogs. The invention facilitates bonding of brackets to a patent's teeth.

Mockup representing a dental arch including analogs approximating orthodontic brackets and method of making the mockup

A method of making a transfer tray includes providing a physical mockup having a shape that corresponds to a positive shape of a patient's dental arch and a positive shape of one or more bracket analogs. A transfer tray may be formed over the physical mockup, with the transfer tray representing a negative replica of at least a portion of the mockup. One or more receptacles are accordingly formed in the ray, each receptacle approximating a least a portion of the shape of a bracket analog. A bracket associated with a bracket analog is placed into a receptacle of the one or more receptacles and a filler material is introduced into at least one receptacle.

Method of making a transfer tray

Growing community of inventors

Löhne, Germany

Dietmar Blees