Rixin Catapult 2

Rixin Catapult ver. 2
This is made for Science/Physical education.
Students will learn the mechanics from this strcture .
This version can adjust the throwing angle, and you can adjust the launch of rubber band strength.
You can get the assembly information of the catapult from the following website :

--> https://sites.google.com/a/mail.zhps.tp.edu.tw/qqmanwu/zui-xin-xiao-xi/rixinerdaitoushichezuzhuangjiaoxue

Hope you like this work.

Shu Chen Wu / 20171214