古代投石器制作方法
第一步：按照制作要求，到西北书城超查找资料，了解古代投石器样子和构造原理。投石器基本上由底座、摆臂及石块筐、配重块三部分组成。投石器来投掷小而光滑的石块，这要比单纯用手臂投掷力量更大，距离更远。![](https://wkrtcs.bdimg.com/rtcs/image?w=329.00&md5sum=37bafa4c3a86b6be8c0c8848796d17e1&sign=941a293e48&rtcs_flag=2&rtcs_ver=3.1&l=webapp&bucketNum=82&ipr={"t":"img","w":"329.00","h":"166.33","dataType":"png","c":"word/media/image1.png","imgOriW":501,"imgOriH":260})
第二步：寻找材料，在院子里找到竹子，必须要一根又直又长的做摆臂，找见的这根约40cm长，顶部刚好有许多侧枝，用这些侧枝做成石块篮刚刚好，其余的找结实的、粗细均匀的截成15cm左右小段；![](https://wkrtcs.bdimg.com/rtcs/image?w=333.53&md5sum=37bafa4c3a86b6be8c0c8848796d17e1&sign=941a293e48&rtcs_flag=2&rtcs_ver=3.1&l=webapp&bucketNum=82&ipr={"t":"img","r":"r_5","w":"333.53","h":"120.00","dataType":"png","c":"word/media/image2.png","imgOriW":480,"imgOriH":279})
![](https://wkrtcs.bdimg.com/rtcs/image?w=334.00&md5sum=37bafa4c3a86b6be8c0c8848796d17e1&sign=941a293e48&rtcs_flag=2&rtcs_ver=3.1&l=webapp&bucketNum=82&ipr={"t":"img","r":"r_5","w":"334.00","h":"177.00","dataType":"jpeg","c":"word/media/image3.jpeg","imgOriW":765,"imgOriH":406})
第三步：小竹段扎成底座，上面交叉部分放置横杆和摆臂，摆臂和横杆的下端十分之一处是固定结实的，底座最下面中间位置固定一个通透的竹竿，穿一根长绳子，绳子一头固定在摆臂顶端，一头在底座这边当牵拉绳，最后在摆臂下面固定一块石头作为配重（石头黄河边随便找一块圆的）；
第四步：实验投石器效果，下面拉牵引绳，摆臂顶端下降，石块篮里面随便放个橡皮擦之类的小物品，突然放开牵引绳，配重猛然下降并拉起摆臂，将石块篮里面的橡皮擦抛出，制作完成。![](https://wkrtcs.bdimg.com/rtcs/image?w=265.00&md5sum=37bafa4c3a86b6be8c0c8848796d17e1&sign=941a293e48&rtcs_flag=2&rtcs_ver=3.1&l=webapp&bucketNum=82&ipr={"t":"img","r":"r_5","w":"265.00","h":"149.00","dataType":"jpeg","c":"word/media/image4.jpeg","imgOriW":607,"imgOriH":341})
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