Kinpo Electronics, Inc.

Cal-comp Electronics & Communications Company Limited

Xyzprinting, Inc.

Shou-Chih Sun

Po-Chih Chang

Yao-Te Huang

Pei-Chi Ho

Ya-Ching Tung

Chi-Kuang Shen

An ink circulation system, including an ink cartridge, an ink tank, an ink pump, first, second, and third valves, a print head, a heating assembly, and a positive-negative pressure assembly, is provided. The ink cartridge has an output pipeline and an ink cartridge valve. The ink tank is disposed on one side of the ink cartridge and connected to the output pipeline. The ink pump is connected to the output pipeline and the ink tank through an ink pipeline. The first valve is connected to the ink tank through a first pipeline. The second valve is disposed on the output pipeline. The third valve is connected to the output pipeline and the ink pipeline through a return pipeline. The print head is connected to the ink tank and the return pipeline. The heating assembly is disposed in the ink tank. The positive-negative pressure assembly is connected to the first pipeline.

Ink circulation system

A 3D printing device is provided. The 3D printing device is adapted to print a 3D object including a plurality of layer objects. The 3D printing device includes a weight sensor, which is configured to measure an actual weight value of the layer objects formed on a carrying surface or configured to measure an actual weight value of a feed tray. A controller of the 3D printing device estimates an ideal weight value corresponding to a first layer object according to a printing sequence of the first layer object in the layer objects. The controller receives the actual weight value corresponding to the first layer object from the weight sensor, and compares the ideal weight value with the actual weight value to determine whether printing abnormity is occurred. According to the disclosure, the printing quality of the 3D printing device is improved.

Three-dimensional printing device

Growing community of inventors

Taipei, Taiwan

Shou-Chih Sun