Microrobot and manufacturing method thereof

A method of manufacturing a microrobot, comprising the steps of:

• providing a first acrylic mold and a second acrylic mold, wherein the first acrylic mold has an inner wall, and the inner wall surrounds to form a first accommodating space;
• wherein the second acrylic mold has a U-shaped structure and the second acrylic mold matches the first accommodating space of the first acrylic mold;
• the second acrylic mold is provided with a first convex, a second convex, and a U-shaped recess, wherein the first convex is positioned at one end of the second acrylic mold and the second convex is positioned at another end of the second acrylic mold, and the U-shaped recess is formed between the first convex and the second convex;
• injecting polydimethylsiloxane into the first accommodating space of the first acrylic mold;
• placing the second acrylic mold in the first accommodating space of the first acrylic mold in a direction of facing the first convex and the second convex toward the first accommodating space of the first acrylic mold, allowing the first convex and the second convex of the second acrylic mold to extrude the polydimethylsiloxane out of the first accommodating space;
• removing the second acrylic mold from the first accommodating space of the first acrylic mold after the polydimethylsiloxane being solidified to form a first block, wherein one side of the first block and the inner wall of the first acrylic mold surrounds to form a second accommodating space, and another side of the first block and the inner wall of the first acrylic mold surrounds to form a third accommodating space;
• mixing the polydimethylsiloxane and neodymium magnet particles in a weight ratio of 1:1 to 1:10 to form a mixture, and injecting the mixture into the second accommodating space of the first acrylic mold;
• after the mixture being solidified in the second accommodating space to form a second block, magnetizing the second block, wherein the second block connects to one side of the first block;
• injecting the mixture into the third accommodating space of the first acrylic mold;
• after the mixture being solidified in the third accommodating space to form a third block, magnetizing the third block, wherein the third block connects to another side of the first block, and the third block and the second block are disposed oppositely;
• and
• taking out the first block, the second block, and the third block from the first acrylic mold to obtain the microrobot.