一个打印d字轴通用旋钮，D字轴旋钮圆为4.5mm，我根据自己的打印机做了公差补偿，现在应该刚刚好能有一些阻尼的塞进4.5mm的d字轴里面去，我是根据一台对讲机的旋钮设计的，原来那台对讲机在我朋友那里，所以我找了另一个对讲机的图片

直接打印，我已经把公差补偿添加到了0.1mm

This is a machine flip. A universal knob for printing D-axis, with a D-axis knob circle of 4.5mm. I made tolerance compensation based on my printer, and now it should be just right to fit some damping into the 4.5mm D-axis. I designed it based on the knob of a walkie talkie, which was originally with my friend, so I found a picture of another walkie talkie

Directly print, I have added tolerance compensation to 0.1mm