用来给无聊的生活增添一些小乐趣，用它来将竹屎投进箱子里，用它和我儿子一起射击打印出来的模型，它结构简单而且易于打印，理论上可以抛射一切手边的小东西，给自己一点小乐趣。

务必用petg或强度在petg以上的材料打印。我的打印机在公差为0.2的时候工作的非常好，各位可以适当调整外轮廓补偿。

最后，这玩意最大的坏处是会招来老婆的愤怒，弹得时候多开心，捡的时候就有多狼狈

To find some fun to boring life, use it to throw bamboo excrement into a box, and shoot a printed model with my son. It has a simple structure and is easy to print. In theory, it can throw all the small things at hand, giving yourself a little fun.
Be sure to print with petg or materials with a strength above petg. My printer works very well with a tolerance of 0.2. You can adjust the outer contour compensation appropriately.

Finally, the biggest downside of this thing is that it can provoke the wife's anger, how happy when playing and embarrassed when picking it up