Desktop hand warmer

本来是想设计3D打印耗材干燥器的，后来发现用来桌面暖手效果不错。冬日桌面伴侣，放在脚边也很不错。需要购买的材料1、28.8 RMB PTCYIDU 带温空220V200W250W绝缘恒温陶瓷PTC发热片电加热器96A1N 220V 250W 支架温控 https://detail.tmall.com/item.htm?id=645020582867&mi_id=0000fDUMQ8aFdBkCy25RJLqLAGqnoCXq17v8FKUplDcvFh8&skuId=4817873879549&spm=tbpc.boughtlist.suborder_itempic.d645020582867.3cf62e8d0QAg8h2、55 RMB 追风者 PH-F120MP 12cm风扇 PWM高风压大风量低噪 黑白 14CM 20CMhttps://item.taobao.com/item.htm?abbucket=13&id=520745368407&mi_id=0000dqjJyUa2ZLHTJbysNBFxUZUNihdVjv-BF9Q_RJauwV4&ns=1&priceTId=2147802b17671075281898582e1265&skuId=3452272989400&spm=a21n57.1.hoverItem.2&utparam=%7B%22aplus_abtest%22%3A%2247603a1a1ec979b037a672d342fe5e09%22%7D&xxc=taobaoSearch<