0:10 板機橡皮筋安裝
0:27 保險橡皮筋安裝
0:49 四發裝子彈
1:20 開保險開始射擊
Only use one set of LEGO 45544+45560 MINDSTORMS Education EV3 Core Set.
There are building instructions in the video.
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Негізгі бет #40【Lau Mo】LEGO EV3 GUN《rubber band gun 四連發橡皮筋槍》building instructions of 45544+45560 Core Set
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