About this 3D model

The models online are all imitations of vending machine models, which are quite wasteful, with material usage often exceeding 700 grams, and take a long time to print, around twenty hours or so. So I use a white trash can like the one below. https://item.taobao.com/item.htm?_u=o1j14c6b636&id=736556333921&spm=a1z09.2.0.0.29df2e8dHCLNMj&skuId=5090056625671 Make sure to buy a large one, 23cm in size. I use this filter. https://item.taobao.com/item.htm?_u=o1j14c69803&id=629756209399&spm=a1z09.2.0.0.67002e8d3jBawB&skuId=5137740106680 The fan I use is a standard 12V computer fan. The entire structure uses a modular design, especially you can choose a nice-looking trash can and redesign the connecting part. There are also those square-shaped trash cans with rounded corners online.