A method for preparing a 3D-printed silicone comprising: a) preparation of a 3D model of a preproduct; b) additive manufacturing of the preproduct according to the 3D model of the preproduct using an additive manufacturing device and an additive manufacturing composition comprising: i) at least one silicone building block bearing a plurality of alkenyl groups (A); ii) at least one crosslinking agent bearing a plurality of thiol groups (B); iii) at least one free radical photoinitiator (D); c) post-curing treatment that comprises at least one further curing step other than light-promoted curing, preferably either heat promoted radical curing or silanol condensation curing; wherein the ratio of thiol groups to alkenyl groups in the additive manufacturing composition is in the range from 0.5:1 to 5:1.

A system for producing three-dimensional objects forms fluid paths within the support structure to facilitate the removal of the support structure following manufacture of the object. The system includes a first ejector configured to eject a first material towards a platen to form an object, a second ejector configured to eject a second material towards the platen to form support for portions of the object, at least one portion of the support having a body with at least one fluid path that connects at least one opening in the body to at least one other opening in the body, and a fluid source that connects to the at least one fluid path of the support to enable fluid to flow through the at least one fluid path to remove at least an inner portion of the support from the object.

A system for producing three-dimensional objects forms fluid paths within the support structure to facilitate the removal of the support structure following manufacture of the object. The system includes a first ejector configured to eject a first material towards a platen to form an object, a second ejector configured to eject a second material towards the platen to form support for portions of the object, at least one portion of the support having a body with at least one fluid path that connects at least one opening in the body to at least one other opening in the body, and a fluid source that connects to the at least one fluid path of the support to enable fluid to flow through the at least one fluid path to remove at least an inner portion of the support from the object.

In an example of a method for parts packing, at least one part to be printed is identified. A placement and an orientation of the at least one identified part in a build volume of a three-dimensional (3D) printer is determined that optimizes a thermal uniformity inside the build volume.

A method of providing high-speed three dimensional (3D) printing is described. The method includes producing at least one three dimensional (3D) printed part. Producing the 3D part includes continuously constructing to extend outwardly a diameter of a rotating cylindrical core via continuous deposition of a layer, and defining a first pattern in the continuously deposited layer corresponding to a cross-section of the at least one 3D printed part.

A method of providing high-speed three dimensional (3D) printing is described. The method includes producing at least one three dimensional (3D) printed part. Producing the 3D part includes continuously constructing to extend outwardly a diameter of a rotating cylindrical core via continuous deposition of a layer, and defining a first pattern in the continuously deposited layer corresponding to a cross-section of the at least one 3D printed part.

The present invention relates to moisture curable compositions based on silane-terminated polymers in paste form that can be used as 3D printing materials and provide isotropic and elastomeric properties. The invention further relates to the use thereof as 3D printing materials and printing methods using said compositions.

The present invention relates to moisture curable compositions based on silane-terminated polymers in paste form that can be used as 3D printing materials and provide isotropic and elastomeric properties. The invention further relates to the use thereof as 3D printing materials and printing methods using said compositions.

A method of printing an envelope for encapsulating at least one 3D printed object, the envelope allowing for removal of the at least one 3D printed object from an additive manufacturing system, the method comprising: monitoring a printing queue for one or more print jobs; determining a size of at least one dimension of the envelope based on the size of the one or more queued print jobs; commencing printing of the one or more queued print jobs and the envelope; and varying the size of the at least one dimension in response to changes in one or more print jobs in the printing queue.

Apparatus (1) for additively manufacturing of three-dimensional objects by means of successive layerwise selective irradiation and consolidation of layers of a build material (13) which can be consolidated by means of an energy beam, comprising at least one module (2) moveable between at least two positions along a travel path, wherein a stream generating unit (6) is configured to create a stream of process gas (7) onto the module (2) at least partly along the travel path (5) of the module (2) between the first and the second position (3, 4).