Hon Hai Precision Industry Co., Ltd.

Hong-fu Jin Precision Industry (shenzhen) Co., Ltd.

Shenzhen Creality 3d Technology Co., Ltd.

Bin Qiao

Chun Lan Chen

Te-Sheng Jan

Yu-Tao Chen

Chun-Che Yen

Shou-Ji Liu

Hui-Lin Liu

Jing-Ke Tang

Dan-Jun Ao

Feng Dai

Chuang-Lao Cheng

Peng-jian Li

Pin Chen

An automatic leveling device of a 3D printer, and a 3D printer is provided. The automatic leveling device includes a photoelectric switch, an electromagnetic assembly and a probe assembly. The photoelectric switch is arranged in a housing and defines a photosensitive groove. The electromagnetic assembly is arranged in the housing and defines a sliding hole. The probe assembly is slidably engaged in the sliding hole, and an end of the probe assembly is engaged in the photosensitive groove. The electromagnetic assembly is capable of driving the probe assembly to make the end of the probe assembly move out of the photosensitive groove. The automatic leveling device has the advantages of simple structure, low manufacturing difficulty, low production cost, simple and stable leveling mode, high detection repetition accuracy and no complex circuit and software cooperation.

Automatic leveling device of 3D printer and 3D printer

An electronic device having a rotatable support is provided. A main body includes a first cylindrical engaging hole with a plurality of first internal gear teeth. A support body includes a second cylindrical engaging hole with a plurality of second internal gear teeth. A gear includes a first portion inserted in the first engaging hole and engaging with the first internal gear teeth, and a second portion inserted in the second engaging hole and engaging with the second internal gear teeth, to restrict the support body from rotating with respect to the main body. A spring member is compressed between the gear and main body in the first engaging hole, to urge the gear to move away from the main body. A button depressibly mounted on the support body is depressed to move the gear out of the second engaging hole, thereby disengaging the support body from the gear.

Electronic device having rotatable support

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Shenzhen, China

Bin Qiao