Coilspring powered Crossbow

There are plans availabe for this on my website http://www.zuender.org (Works - DIY)
STL-Files for the Wheels and Stringstoppers: http://www.silizium-net.de/dl/coilspr...
And some higher quality still images: https://imgur.com/gallery/bs1LiNv
Compilation of fails:    • Failure before Success  

Sorry for the sub-optimal sound. My equipment didn't record properly so I had to do with the camera audio.

Timecodes:
0:00 Intro-Shots
0:20 Introduction
0:48 How it works / Advantages
2:47 Facts and Numbers
4:20 Speed and Energy
5:14 Cocking the Crossbow
6:10 Shooting 1
7:33 Construction / Details
9:46 Shooting 2
10:11 Ideas for Improvement

Music:
Incroyable Sacrilége by dUASsEMIcOLCHEIASiNVERTIDAS
https://freemusicarchive.org/music/dU...

Upbeat Funk Pop by Scott Holmes
https://freemusicarchive.org/music/Sc...