The invention relates to a coating arrangement (1) for a 3D printer (100), comprising a coating apparatus (3) with a carrier structure (21a-21c) and a container (17) which is fastened to the carrier structure and defines an internal hollow space for receiving particulate construction material, said internal hollow space leading into an opening for discharging the particulate construction material; a vibration device (23) which is designed to set into vibration the particulate construction material which is received in the container and thereby influence the output of construction material from the opening; and an application element (15a) mounted on the coater, which is adapted to pass over the particulate construction material discharged via the opening in order to thus level and/or compress the discharged particulate material; and/or a closure device (31) which is designed to selectively close the opening and comprises a closure element (31a) fastened to the coating apparatus (3), the passing element (15a) and/or the closure element (31a) being fastened to the carrier structure in a vibration-decoupled manner by a vibration generated in the container (17) by the vibration device.