自制砂带机 Own DIY belt sander

砂带机所用材料除了三个橡胶轮子是咸鱼花40元买的，剩下的都是家中现有的等着卖废品的材料做的，希望能对各位有些许借鉴作用... In addition to the three rubber wheels bought by salted fish for 40 yuan, the rest of the materials used in the belt sander are made of the existing materials waiting to sell waste products at home. I hope they can be used for reference to you