Abstract: A device for cutting a filament of a 3D printer includes a blade having a first end and a second end opposite the first end. The device also includes a support that is attachable to a heater block of the 3D printer and supports the blade, such that the blade is movable relative to the heater block. The first end of the blade is a cutting end, and the second end of the blade is a drive end. The drive end of the blade has a surface configured to receive a force from outside of the device, such that the blade moves relative to the heater block.

Abstract: A device for cutting a filament of a 3D printer includes a blade having a first end and a second end opposite the first end. The device also includes a support that is attachable to a heater block of the 3D printer and supports the blade, such that the blade is movable relative to the heater block. The first end of the blade is a cutting end, and the second end of the blade is a drive end. The drive end of the blade has a surface configured to receive a force from outside of the device, such that the blade moves relative to the heater block.

Abstract: A vehicle chassis in the form of a trough is ‘V shaped and encloses the vehicle driveline and is resistant to ballistic and blast damage. The chassis has a removable body attached by longitudinal pivot pins. A torsion bar suspension is pivoted on the axis of the torsion bar.

Abstract: A vehicle chassis in the form of a trough is ‘V shaped and encloses the vehicle driveline and is resistant to ballistic and blast damage. The chassis has a removable body attached by longitudinal pivot pins. A torsion bar suspension is pivoted on the axis of the torsion bar.

Abstract: A shovel includes a handle and a blade in which a central portion of the blade contains a plurality of perforations. The perforations are in an array of rows and columns and the rows extend in a direction perpendicular to the handle. The perforations are elongated and have a length in a direction approximately perpendicular to the handle. The perforations in adjoining columns and rows are interleaved a predetermined amount and the total area of the perforations is about one-half the area of the central portion. The blade is made from a single sheet of steel that is punched and bent into a compound shape to provide a rigid basket for retaining material. The perforated area is relatively flat, extends to the front edge of the blade, and can be reinforced with ridges that are formed when the sheet is bent. The front edge is reinforced by rolling the edge out of the plane of the central portion.