Abstract: An additive manufacturing system has an optics assembly to direct laser energy toward a build surface to fuse a portion of a precursor material on the build surface. An optics shield of the additive manufacturing system has a debris shield including an optical window. The optical window permits laser energy to pass through the debris shield and prevents fusion products released during fusion of the precursor material from contacting a portion of the optics assembly. The optics shield has a gas flow passage between the optical window and the build surface. The gas flow passage directs a flow of gas away from the optical window to resist movement of the fusion products through the gas flow passage toward the debris shield.

Abstract: An additive manufacturing system includes a build surface, one or more laser energy sources, and an optics assembly movable relative to the build surface. The optics assembly directs laser energy from the one or more laser energy sources toward the build surface to fuse a portion of a precursor material on the build surface. A gas head is operatively coupled to the optics assembly and movable relative to the build surface. The gas head entrains emitted materials released during fusion of the precursor material. The system also includes a gas head cleaning device having a scraper to remove debris from a surface of the gas head.

Abstract: One variation of a system includes: a cam block mounted to a deck of a scooter and defining cam lobes arranged about a pivot feature and cam heels between the set of cam lobes; a pivot block pivotably coupled to the pivot feature and defining followers riding over the cam lobes; a pair of wheel uprights locating a pair of wheel assemblies; a first lateral link extending between and coupled to the pair of wheel uprights and pivotably coupled to the pivot block; a second lateral link extending between and coupled to the pair of wheel uprights, vertically offset from the first lateral link, and coupled to the pivot block between pair of wheel uprights; and a spring element driving the followers of the pivot block into cam heels to bias the second lateral link toward a neutral position.

Abstract: A neuromodulation therapy is delivered via at least one electrode implanted subcutaneously and superficially to a fascia layer superficial to a nerve of a patient. In one example, an implantable medical device is deployed along a superficial surface of a deep fascia tissue layer superficial to a nerve of a patient. Electrical stimulation energy is delivered to the nerve through the deep fascia tissue layer via implantable medical device electrodes.

Abstract: A neuromodulation therapy is delivered via at least one electrode implanted subcutaneously and superficially to a fascia layer superficial to a nerve of a patient. In one example, an implantable medical device is deployed along a superficial surface of a deep fascia tissue layer superficial to a nerve of a patient. Electrical stimulation energy is delivered to the nerve through the deep fascia tissue layer via implantable medical device electrodes.

Abstract: A kit for use with a dolly cart comprising a worktable; a garbage receptacle holder comprising a ring component; a wagon; and a V-shaped support bar for rigidly attaching the worktable, the wagon, or the garbage receptacle holder to a frame of the dolly cart, the V-shaped support bar comprises a generally V-shaped bar having a first half, a second half, and a vertex, wherein mounting holes are disposed in the first half and the second half, the holes accommodate a bolt and a wing nut for tightening.