A coating device arrangement 1 for a 3D printer 100 is described, comprising a coating device 3 having a carrier structure 21a to 21c and a container 17 fixed to the carrier structure, defining an inner cavity for receiving particulate construction material, which leads to an opening for outputting the particulate construction material, a vibration device 23 configured to vibrate particulate construction material received in the container and thereby to influence the discharge of construction material from the opening, and a stroking member 15a attached to the coating device, configured to stroke particulate construction material output from the opening to thereby level and/or compress the output particulate material, and/or a closing device 31 configured to selectively close the opening and comprising a closing member 31a attached to the coating device 3, wherein the stroking member 15a and/or the closing member 31a are fixed to the carrier structure to be vibration-decoupled from the vibration generated by means of the vibration device in the container 17.

A method, product, apparatus, and article of manufacture for the application of the Composite Based Additive Manufacturing (CBAM) method to produce objects in metal, and in metal fiber hybrids or composites. The approach has many advantages, including the ability to produce more complex geometries than conventional methods such as milling and casting, improved material properties, higher production rates and the elimination of complex fixturing, complex tool paths and tool changes and, for casting, the need for patterns and tools. The approach works by slicing a 3D model, selectively printing a fluid onto a sheet of substrate material for each layer based on the model, flooding onto the substrate a powdered metal to which the fluid adheres in printed areas, clamping and aligning a stack of coated sheets, heating the stacked sheets to melt the powdered metal and fuse the layers of substrate, and removing excess powder and unfused substrate.

A method, product, apparatus, and article of manufacture for the application of the Composite Based Additive Manufacturing (CBAM) method to produce objects in metal, and in metal fiber hybrids or composites. The approach has many advantages, including the ability to produce more complex geometries than conventional methods such as milling and casting, improved material properties, higher production rates and the elimination of complex fixturing, complex tool paths and tool changes and, for casting, the need for patterns and tools. The approach works by slicing a 3D model, selectively printing a fluid onto a sheet of substrate material for each layer based on the model, flooding onto the substrate a powdered metal to which the fluid adheres in printed areas, clamping and aligning a stack of coated sheets, heating the stacked sheets to melt the powdered metal and fuse the layers of substrate, and removing excess powder and unfused substrate.

A metallic build material granule includes a plurality of primary metal particles and a temporary binder agglomerating the plurality of primary metal particles together. The primary metal particles have a primary metal particle size ranging from about the 1 μm to about 20 μm. The primary metal particles are non-shape memory metal particles, and the metallic build material granule excludes shape memory metal particles.

The disclosure is of and includes at least an apparatus, system and method for a print head for additive manufacturing. The apparatus, system and method may include at least two proximate hobs suitable to receive and extrude therebetween a print material filament for the additive manufacturing, each of the two hobs comprising two halves, wherein each of the hob halves comprises teeth that are offset with respect to the teeth of the opposing hob half; a motor capable of imparting a rotation to at least one of the two hobs, wherein the extrusion results from the rotation; and an interface to a hot end capable of outputting the print material filament after at least partial liquification to perform the additive manufacturing.

A temperature controlled dispensing tool includes a mount and a temperature controlled module coupled to the mount. The temperature controlled module may include a barrel housing, a barrel insert, one or more heating element, one or more cooling element, one or more temperature sensors, and a control unit. The barrel insert is removably insertable into the barrel housing and configured to receive a material barrel. The one or more heating elements and the one or more cooling elements are in thermal communication with the barrel insert. The control unit is configured to determine a temperature of the temperature controlled module based on the signal of the one or more temperature sensors, and selectively operate the one or more heating elements and the one or more cooling elements thereby controlling a temperature of the temperature controlled module.

A temperature controlled dispensing tool includes a mount and a temperature controlled module coupled to the mount. The temperature controlled module may include a barrel housing, a barrel insert, one or more heating element, one or more cooling element, one or more temperature sensors, and a control unit. The barrel insert is removably insertable into the barrel housing and configured to receive a material barrel. The one or more heating elements and the one or more cooling elements are in thermal communication with the barrel insert. The control unit is configured to determine a temperature of the temperature controlled module based on the signal of the one or more temperature sensors, and selectively operate the one or more heating elements and the one or more cooling elements thereby controlling a temperature of the temperature controlled module.

A powder handling system that includes a first powder deposition device for depositing a primary powder on a surface at a predetermined speed; and a second powder deposition device for depositing a secondary powder onto the primary powder in at least two directions relative to the surface, wherein the second powder deposition device includes a reservoir for containing the secondary powder; and a rotating shaft connected to the reservoir, wherein the rotating shaft includes a speed of rotation, an angle of rotation, a number of rotations, and a notch geometry, and wherein the rotating shaft is adapted to deposit the secondary powder onto the primary powder at a predetermined rate of deposition, and wherein the predetermined rate of deposition is controlled by adjusting the speed of rotation of the shaft, adjusting the angle of rotation of the shaft, adjusting the number of rotations of the shaft, adjusting the notch geometry of the shaft, or a combination thereof.

In one example, a lighting device for an additive manufacturing machine includes first light sources each to emit monochromatic light within a first band of wavelengths that includes a peak light absorption of a liquid coalescing agent and second light sources each to emit monochromatic light within a second band of wavelengths different from the first band of wavelengths. Each of the first light sources or each of multiple groups of the first light sources is individually addressable to emit monochromatic light independent of any other of the first light sources or of any other group of the first light sources and each of the second light sources or each of multiple groups of the second light sources is individually addressable to emit monochromatic light independent of any other of the second light sources or of any other group of the second light sources.

A stereolithography device having a trough (2) for accommodating free-flowing, photopolymerizable material, a construction platform (4) suspended above the trough bottom on a lifting unit (6), and having a heating unit for heating the photopolymerizable material in the trough. The heating unit has a transparent, electrically conductive layer (33), which covers the entire area of at least the exposure region above the trough bottom, and which is provided outside the exposure region on opposing sides of the layer with electrical contacts (20) extended over the opposing sides, which are connected to a controlled electrical supplier to enable heating of the entire area of photopolymerizable material above the trough bottom in the exposure region by current flow through the layer.