通过卡子对A1/A1MINI工具头添加散热风扇，一开始是6025设计的，后来有人觉得太大了，加上3cm有人设计了，所以只是添加了4cm风扇设计（4cm卡件添加了超45度的导风槽，悬垂性能不足会下垂），4cm其实是这个风口利用率最高的了

效果如图，均在30度箱内温度测试

利民6025（30%pwm） 无风扇

3元包邮的4020（100%/7000r）

按每加1度室温，至少上升1度，在45度封箱下挤出机温度上百，推荐使用7000r以上的4cm或10000r以上的3cm风扇进行散热

Machine flipping：

Add a cooling fan to the A1/A1MINI tool head through a clip. Initially, the design was 6025, but later some people thought it was too large. In addition, someone designed a 3cm fan, so only a 4cm fan design was added (the 4cm clip added a super 45 degree air duct, which will sag if the suspension performance is insufficient). In fact, the 4cm fan has the highest utilization rate of this air outlet

For every 1 degree increase in room temperature, increase by at least 1 degree. When sealing the box at 45 degrees, the extruder temperature should reach over 100 degrees. It is recommended to use a 4cm or 3cm fan with a capacity of 7000r or more or a 3cm fan with a capacity of 10000r or more for heat dissipation