Abstract: A feed detection apparatus of a 3D printer, comprising a gear, a measurement device, a support, and a compression assembly. The gear is provided on the support to abut against a filament material, and rotates along with a movement of the filament material. The measurement device is placed on the support to measure a rotating speed of the gear, and determines a feeding status of the filament material according to a measurement result. The compression assembly comprises a connection member and an abutment member; the connection member is provided between the support and the abutment member; the abutment member is used for regulating a pressure of the connecting member applied on the support so as to enable the gear to abut against the filament material.

Abstract: A 3D printing conveying platform includes a conveyor belt and a drive assembly driving the conveyor belt in a first direction, a base, a follower assembly and a movable component. The drive assembly is mounted to the base. The follower assembly is disposed opposite the drive assembly in the first direction, the conveyor belt is drive connected to the follower assembly. The movable component includes a first movable member and a second movable member connected to each other, the first movable member is connected to the follower assembly, the second movable member is movably disposed between the first movable member and the base and connected to the first movable member and the base, such that the follower assembly is capable of oscillating in a second direction relative to the base. The present application also provides a 3D printer.

Abstract: A feed detection apparatus of a 3D printer, comprising a gear, a measurement device, a support, and a compression assembly. The gear is provided on the support to abut against a filament material, and rotates along with a movement of the filament material. The measurement device is placed on the support to measure a rotating speed of the gear, and determines a feeding status of the filament material according to a measurement result. The compression assembly comprises a connection member and an abutment member; the connection member is provided between the support and the abutment member; the abutment member is used for regulating a pressure of the connecting member applied on the support so as to enable the gear to abut against the filament material.