An apparatus and method for removing support material from a part formed by three-dimensional (3D) printing. The support removal machine contains a tank for submersion of a 3D printed part into a liquid mass. The liquid mass circulates in the tank in a controlled manner such that submerged parts remain centrally suspended in the tank, regardless of the material, density and geometry comprising the part. The part circulates and rotates in conjunction with the rotational flow of the liquid mass for uniform exposure to means of support removal. During rotation, the part may be subjected to multiple means of agitation that include heat, chemical and ultrasonic, in order to optimize energy use and maximize efficiency of the removal of support material.

A head-mounted display system includes a head mounted display unit with a display and a positioning and stabilising structure configured to hold the head-mounted display unit in an operable position on the user's head in use. The positioning and stabilizing structure includes headgear with at least one strap configured to contact the user's head, in use. The head mounted display unit and at least a portion of the positioning and stabilizing structure are formed from a one piece construction of textile material.

An industrial cleaning machine for cleaning parts, in particular spray guns and accessories thereof, including a cleaning chamber for receiving parts, and a pneumatically operated cleaning system capable of subjecting the parts to a cleaning operation using a cleaning liquid. The cleaning system includes at least one pneumatically actuated pump that is operated by compressed air supplied to the cleaning machine to pump and supply the cleaning liquid from a container. The cleaning machine integrates a control device configured to monitor and control operation of the cleaning machine and to operate autonomously on power provided by a battery. The control device is configured to gather status information relating to operation of the cleaning machine and communicate the status information to a remote server. The control device includes an air circuit configured to be coupled to an air compressor to control supply of the compressed air to the pneumatically actuated pump.

Disclosed is a helmet cleaning apparatus. The apparatus includes a rectangular housing having a cleaning compartment with a transparent lid pivotally connected thereto. The compartment includes a helmet mount having a spheroidal shape and on which a helmet can be positioned for cleaning. The helmet mount further includes apertures thereon that are connected to a vacuum cleaning device and a steam cleaning device contained within the housing. In operation, a helmet is positioned on the helmet mount, and some of the apertures thereon disperse steam in order to clean the helmet. Other apertures draw debris and other materials into the vacuum cleaning device in order to remove the same from the helmet. In this way, a user can easily and conveniently sanitize and clean a helmet without having to manually cleaning the helmet.

A dipping tank includes a pump, a container, a fitting, and a plate which is used to place objects, such as corals, to be dipped. The pump draws fluid from inside the container and discharges it into the container through the fitting. The fitting includes two flexible hoses, one with a propulsive nozzle and the other with one or more dipping nozzles. The propulsive nozzle produces a jet which impinges upon the blades protruding from the bottom side of the plate causing the plate to rotate. The dipping nozzles eject jets which are used to spray and thereby dip the objects. Flexible hoses are configured so as to provide movements in 6 degrees of freedom for the nozzles. Flexible hoses may also further comprise valves to control fluid flow through said hoses.

A combination sink and jet parts washer utilizing a minimum grip sprocket driving a rotating parts basket, for cleaning mechanical parts of oil, grease and contaminants. The washer has a cabinet which has a jet cleaning section, including the rotating parts basket. The basket is driven by a minimum grip sprocket drive mechanism. A parts basket in the jet cleaning section receives the parts which are cleaned by a spray from a spray manifold. The manifold is connected to a fluid pump which has its inlet communicating with the reservoir. A sink is positioned on the top of the cabinet and opens to access the jet washer and reservoir. In the closed position, the sink covers the top of the cabinet and may be used as a sink washer using the attached brush.