A system is disclosed for use in additively manufacturing an object. The system may have a support and a first module operatively mounted to an end of the support and configured to discharge a material during motion of the support to form an object. The system may also have a second module configured to sever the material, at least a third module configured to at least one of compact or cure the material, and an actuator configured to cause movement of the second and the at least a third modules relative to the first module.

An additive manufacturing apparatus includes a support plate defining a window and a resin support configured to support an uncured layer of resin. A stage is configured to hold one or more cured layers of the resin to form a component positioned opposite a support plate. A radiant energy device is positioned on an opposite side of the resin support from the stage and is operable to generate and project radiant energy in a patterned image through the window. The stage is configured to move simultaneously with the resin support from a first position to a second position in an X-axis direction.

Techniques for force sensing in additive fabrication are provided. According to some aspects, an additive fabrication device may include a force sensor configured to measure a force applied to a build platform during fabrication. A length of time taken for a layer of material to separate from a surface other than the build platform to which it is adhered may be determined based on measurements from the force sensor. Subsequent additive fabrication operations, such as subsequent motion of the build platform, may be adapted based on the determined length of time.

Techniques for force sensing in additive fabrication are provided. According to some aspects, an additive fabrication device may include a force sensor configured to measure a force applied to a build platform during fabrication. A length of time taken for a layer of material to separate from a surface other than the build platform to which it is adhered may be determined based on measurements from the force sensor. Subsequent additive fabrication operations, such as subsequent motion of the build platform, may be adapted based on the determined length of time.

An apparatus and a method for fabricating a magnetic material with variable magnetic alignment are disclosed. For example, the apparatus includes a reservoir storing magnetic particles, a heater coupled to the reservoir to melt the magnetic particles, a nozzle coupled to the reservoir to receive the magnetic particles that are melted, wherein the nozzle includes a rotatable collar that includes at least one magnet, a platform below the nozzle to receive the magnetic particles that are melted that are dispensed by the nozzle, and a controller communicatively coupled to the heater, the nozzle, and the platform to control operation of the heater, the nozzle, the rotatable collar of the nozzle, and the platform.

An apparatus and a method for fabricating a magnetic material with variable magnetic alignment are disclosed. For example, the apparatus includes a reservoir storing magnetic particles, a heater coupled to the reservoir to melt the magnetic particles, a nozzle coupled to the reservoir to receive the magnetic particles that are melted, wherein the nozzle includes a rotatable collar that includes at least one magnet, a platform below the nozzle to receive the magnetic particles that are melted that are dispensed by the nozzle, and a controller communicatively coupled to the heater, the nozzle, and the platform to control operation of the heater, the nozzle, the rotatable collar of the nozzle, and the platform.

Systems, devices, and methods are provided for producing a 3d-printable prepolymerized material. A device can include a reactor having a body including a housing having an exterior, and interior cavity, an input end, and an output end opposite of the input end, the output end comprising an opening, a loading hopper operably connected to the interior cavity of the housing, an auger supported within the interior cavity of the housing, a driving motor operably connected to the body configured to drive the auger; and a light emitting unit operably connected to the exterior of the housing.

Systems, devices, and methods are provided for producing a 3d-printable prepolymerized material. A device can include a reactor having a body including a housing having an exterior, and interior cavity, an input end, and an output end opposite of the input end, the output end comprising an opening, a loading hopper operably connected to the interior cavity of the housing, an auger supported within the interior cavity of the housing, a driving motor operably connected to the body configured to drive the auger; and a light emitting unit operably connected to the exterior of the housing.

A 3D printing assembly, system, and method for 3D printing a biomaterial may include a robotic arm end effector and a barrel clamp assembly. The robotic arm end effector is configured to move along one or more axes of movement for 3D printing. The barrel clamp assembly is distally coupled to the robotic arm end effector and includes a barrel clamp arm and a barrel clamp. The barrel clamp arm includes a top end coupled to the robotic arm end effector and a bottom end opposite to the top end. The bottom end is angled forward with respect to the top end. The barrel clamp is coupled to the bottom end of the barrel clamp arm and is configured to receive and clamp against a distal end of a printing syringe barrel for 3D printing.

A 3D printing assembly, system, and method for 3D printing a biomaterial may include a robotic arm end effector and a barrel clamp assembly. The robotic arm end effector is configured to move along one or more axes of movement for 3D printing. The barrel clamp assembly is distally coupled to the robotic arm end effector and includes a barrel clamp arm and a barrel clamp. The barrel clamp arm includes a top end coupled to the robotic arm end effector and a bottom end opposite to the top end. The bottom end is angled forward with respect to the top end. The barrel clamp is coupled to the bottom end of the barrel clamp arm and is configured to receive and clamp against a distal end of a printing syringe barrel for 3D printing.