Concrete delivery system
Abstract:
The present invention is a three-dimensional printing system which is capable of printing with multiple different printing materials, including homogenous materials, such as cement paste, or heterogeneous materials, such as concrete. Functionality is accomplished by novel, critical structures including but not limited to a movable gate capable of controlling the flow of printing materials without clogging or becoming otherwise damaged. The system has a print head that discharges printing material through a discharge aperture. The movable gate is rotatably connected to the print head, allowing it to cover the discharge aperture and cut off the flow of printing material when actuated and rotated into position. Certain embodiments also include hose positioning systems to prevent hoses delivering printing material from disconnecting or damaging the printed structure.
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