Abstract: The lighted guidepost for a boat trailer may comprise a guidepost and a light assembly. The guidepost may be coupled to a boat trailer such that the guidepost extends vertically above a side of the rear of the boat trailer. The guidepost may be configured to be visible even when the rear of the boat trailer is submerged in water. The light assembly may be coupled to the top of the guidepost. The light assembly may be illuminated to increase the visibility of the guidepost. A pair of lighted guideposts may be coupled to opposing sides of the rear of the boat trailer such that the light assemblies may designate the rear of the boat trailer.

Abstract: There is provided a 3D printing build material container (31) comprising a reinforcement structure (34), a collapsible reservoir (33) to hold build material, a build material outlet structure (313), at least one first inlet structure (314, 316), and a second inlet structure (315). The reinforcement structure encloses an airtight space and the reservoir is disposed within the reinforcement structure. The build material outlet (313) structure is to allow build material to exit the reservoir. The at least one first inlet structure (314, 316) is to allow recycled build material to enter the reservoir and to selectively allow a gas to enter the reservoir. The second inlet structure (315) is to selectively allow a gas to enter a space between the reservoir and the reinforcement structure.

Abstract: There is provided a 3D printing build material container (31) comprising a reinforcement structure (34), a collapsible reservoir (33) to hold build material, a build material outlet structure (313), at least one first inlet structure (314, 316), and a second inlet structure (315). The reinforcement structure encloses an airtight space and the reservoir is disposed within the reinforcement structure. The build material outlet (313) structure is to allow build material to exit the reservoir. The at least one first inlet structure (314, 316) is to allow recycled build material to enter the reservoir and to selectively allow a gas to enter the reservoir. The second inlet structure (315) is to selectively allow a gas to enter a space between the reservoir and the reinforcement structure.