A modular plastic pipe formation apparatus to extrude plastic pipe is disclosed and includes a plurality of modules each having a transportable container and at least one component of the pipe formation apparatus located therein. The plurality of modules are aligned in a predetermined manner during formation of plastic pipe with the components aligned for pipe extrusion. The apparatus may also include a closed circuit fluid cooling system to provide cooling fluid to some of modules to cool the pipe being formed, the cooling circuit may flows in a counter direction to the direction of pipe forming in the pipe formation apparatus.

A plurality of trough extruders are supported upon a lift truck traveling in a circular travel path. The plurality of trough extruders continuously form one piece troughs as the lift truck travels its circular path. A lift mechanism progressively raises the extruders as the lift truck travels its circular path two form continuous one-piece helical water troughs for use in an agricultural growing structure.

A plurality of trough extruders are supported upon a lift truck traveling in a circular travel path. The plurality of trough extruders continuously form one piece troughs as the lift truck travels its circular path. A lift mechanism progressively raises the extruders as the lift truck travels its circular path two form continuous one-piece helical water troughs for use in an agricultural growing structure.

A supply of build material such as a spool or cartridge is instrumented with a data tag that includes information about the build material. A three-dimensional printer, or a tag reader in communication therewith (directly or indirectly), can read the information from the tag for a determination as to how to use the build material during fabrication of a three-dimensional object.

The invention relates to an extruder system and a method for extruding cord reinforced extrudate, in particular for tire components, wherein the extruder system comprises an extruder head with flow channels for receiving an extrusion material from an extruder, a die for receiving said extrusion material from the flow channels and a cord guide for guiding cords side-by-side in a cord plane into the die, wherein the extruder head is provided with an insertion slot that extends in an insertion direction parallel to the cord plane through the extruder head, wherein the flow channels debouch into the insertion slot at a flow area, wherein the insertion slot is arranged for receiving the die and the cord guide in the insertion direction into a die position downstream of the flow area and a cord guide position upstream of the flow area, respectively, with respect to the insertion direction.

The invention relates to an extruder system and a method for extruding cord reinforced extrudate, in particular for tire components, wherein the extruder system comprises an extruder head with flow channels for receiving an extrusion material from an extruder, a die for receiving said extrusion material from the flow channels and a cord guide for guiding cords side-by-side in a cord plane into the die, wherein the extruder head is provided with an insertion slot that extends in an insertion direction parallel to the cord plane through the extruder head, wherein the flow channels debouch into the insertion slot at a flow area, wherein the insertion slot is arranged for receiving the die and the cord guide in the insertion direction into a die position downstream of the flow area and a cord guide position upstream of the flow area, respectively, with respect to the insertion direction.

An additive manufacturing system and process for producing three-dimensional parts, which includes forming layers of the three-dimensional part from a part material at a first resolution, and ablating selected voxels of the formed layers with a laser beam at a second resolution that is higher than the first resolution.

An additive manufacturing system and process for producing three-dimensional parts, which includes forming layers of the three-dimensional part from a part material at a first resolution, and ablating selected voxels of the formed layers with a laser beam at a second resolution that is higher than the first resolution.

A technique for planarizing build surfaces in three-dimensional printing includes the use of a three-dimensional printer having an extruder with a sensor mechanically coupled thereto, where the sensor is operable to sense a contact force between the extruder and a separate structure. In particular, the sensor may be used to measure the contact force at a plurality of locations across a build surface of the separate structure, so that a difference between the measured contact force at two or more locations can be identified. In response to the difference between the measured contact force at these locations, a control signal may be created to reduce the difference for planarizing the build surface, e.g., by fabricating a layer on the build surface that mitigates irregularities therein, by gap filling on the build surface, or by adjusting a parameter of the three-dimensional printer.

A concrete curb forming and extruding apparatus with wheel adjustment locks, and an adjustable slip form system shaping cementitious material into a continuous curb forced there through by an extruder which receives materials stored in a hopper with dasher. The extruder has a rotary trowel compacting member which continually forces material from the hopper into compressed concrete passing through an adjustable slip form to fill the same and form differing shaped continuous curbing underneath fences or against vertical surfaces or conventional curbing, depending upon the slip form setting.