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In this design program, each button is divided into two parts: front button and back button. There must be magnets inside the front button. While nailing a button, we can use the needle (with a clip from the back button) through the fabric directly into the front button. Because of the slot, the button will never fall off. Then, we can the same way to another part. By using the principle of Positive and negative attraction of magnet, we can say goodbye to needles and sewing machine. For removing buttons, we can simply press the button on the side of the front slot button to remove it. So, you can change the size of the cloches easily.
Shaanxi University of Science and Technology