迷你弩箭拼装套卡

模型组装还需要三根皮筋和一小节绳子。

模型原本是按水笔笔芯尺寸做的，后来发现笔芯并不是同一个尺寸，所以加了个相应尺寸的箭矢。

模型可以放大尺寸打印，测试过150%的大小，没有问题，同时增加了皮筋，威力也变得巨大。

安装示意图如下 （请结合主图细节图参考安装），同名小红书和抖音有安装视频。

文档里也有分步组装示意图

Three rubber bands and a short length of rope are additionally required for model assembly.

The model was originally designed to fit standard pen refills. However, pen refills vary in actual size, so an arrow piece with matching dimensions has been added.

This model supports scaled‑up printing. A 150% scale has been tested and works perfectly. With extra rubber bands fitted, it delivers significantly greater power.

Please refer to the main and detail images for assembly reference. Installation diagrams are shown below. Step‑by‑step assembly illustrations are also included in the documentation.

Installation videos are available on Xiaohongshu and Douyin under the same project name.