Abstract: According to an example, a heating device comprises a plurality of light emitting arrays to emit a respective irradiance associated with a calibration profile and a power source electrically connected to the plurality of light emitting arrays, wherein the irradiances emitted by the plurality of light emitting arrays result in a substantially spatially uniform irradiance towards a target surface.

Abstract: An output tray for a printer, a printer comprising the output tray, and a kit of parts including the output tray. The output tray comprises a spool, a guide member, and a sheet attached between to the spool and the guide member. The guide member is movable between a stowed and one or more deployed positions. The sheet is deployed from a stored configuration to one or more in-use positions upon movement of the guide member.

Abstract: A 3D printer is disclosed herein. The 3D printer comprises a build material distributor to generate layers of a build material having a right limit temperature of the build material crystallization curve higher than a left limit temperature of the build material fusing curve. The 3D printer also comprises an agent distributor to selectively deposit an energy absorbent fusing agent to a layer of build material; an energy source to emit energy at a set of wavelengths comprised in the range of 430 to 1200 nm; and a controller. The controller is to receive print job data of a 3D object to be generated; control the build material distributor to generate a layer of build material; control the agent distributor to selectively deposit the fusing agent based on the print job data; and to control the energy source to emit energy to the layer of build material to cause build material on which the fusing agent was deposited to melt, coalesce and then solidify upon cooling.

Abstract: A 3D printer is disclosed herein. The 3D printer comprises an energy source comprising solid-state emitters to selectively emit energy to a build material layer in a narrow-band of wavelengths; an agent delivery device to selectively deposit a fusing agent, a detailing agent and a reflective agent on the build material layer in respective independent patterns; and a controller. The reflective agent is to reflect substantially all of the energy at the wavelengths within the narrow-band of wavelengths. The controller is to control the agent delivery device to selectively deposit the fusing agent to a build material layer in a first pattern corresponding to a 3D object to be generated. The controller is further to control the agent delivery device to selectively deposit the detailing agent and the reflective gent to the build material layer in a second pattern and third pattern respectively.

Abstract: An additive manufacturing build material container comprises a reservoir to hold build material and a build material outlet structure.

Abstract: In an example, a method includes acquiring a thermal image of a reflector within an additive manufacturing apparatus through a screen. An energy profile of the thermal image of the reflector may be determined and, based on the energy profile, an operational characteristic of the screen may be determined.

Abstract: A reflector assembly for an additive manufacturing apparatus comprises a first reflector comprising a first reflector section having a first reflecting surface and a second reflector comprising a second reflector section having a second reflecting surface. The first reflector section is for reflecting radiation from a first radiating element located, in use, proximate to the first reflecting surface, and the second reflector section is for reflecting radiation from a second radiating element located, in use, proximate to the second reflecting surface. The first reflector section and the second reflector section are each formed of a ceramic material.

Abstract: An additive manufacturing build material container comprises a reservoir to hold build material and a build material outlet structure.

Abstract: An additive manufacturing build material container (15) comprises a reservoir to hold build material and a build material outlet structure (13).

Abstract: A reflector includes a first reflector section and a second reflector section. The first reflector section extends along a portion of a first ellipse. The second reflector section extends along a portion of a second ellipse, the second ellipse intersecting the first ellipse. The first reflector section and the second reflector section are joined at an intersecting point of the first ellipse and the second ellipse.

Abstract: In an example, a method includes acquiring a thermal image of a reflector within an additive manufacturing apparatus through a screen. An energy profile of the thermal image of the reflector may be determined and, based on the energy profile, an operational characteristic of the screen may be determined.

Abstract: A reflector includes a first reflector section and a second reflector section. The first reflector section extends along a portion of a first ellipse. The second reflector section extends along a portion of a second ellipse, the second ellipse intersecting the first ellipse. The first reflector section and the second reflector section are joined at an intersecting point of the first ellipse and the second ellipse.

Abstract: An additive manufacturing build material container (15) comprises a reservoir to hold build material and a build material outlet structure (13).

Abstract: Examples provide a build material management station (106). The station comprises: a processing unit which comprises a first conduit (150a, 150b, 152a, 152b) and at least one pump for pumping build material through the first conduit; and at least one external build material storage tank (110, 114a, 114b).

Abstract: It comprises a fixed part (10) and a knob (20), said knob (20) being arranged such that it can be moved relative to said fixed part (10) for shifting operations, and a haptic device (30) for providing the user with a shifting feeling when operating the knob (20). The haptic device (30) may act between the knob (20) and the fixed part (10) and it may be mounted inside the knob (20). The haptic device (30) comprises a contoured surface fitted inside the knob (20) (31) and a follower finger (32) is arranged spring biased in the fixed part (10) towards the contoured surface (31).

Abstract: It comprises a fixed part (10) and a knob (20), said knob (20) being arranged such that it can be moved relative to said fixed part (10) for shifting operations, and a haptic device (30) for providing the user with a shifting feeling when operating the knob (20). The haptic device (30) may act between the knob (20) and the fixed part (10) and it may be mounted inside the knob (20). The haptic device (30) comprises a contoured surface fitted inside the knob (20) (31) and a follower finger (32) is arranged spring biased in the fixed part (10) towards the contoured surface (31).