The First Version of the Ballista!!
Find Version 3 (the newest version) here: https://www.instructables.com/id/Ballista-Desktop-S...
Find Version 2 (not on Instructables) here: http://www.thingiverse.com/thing:242226
Note that this is the first version, therefore it is not that great. However, the differences between the versions are interesting.
This version requires glue, supports, etc. It is not refined.
Step 1: How Do I Get the File to Make It on My 3D Printer?
Head on over to Thingiverse: http://www.thingiverse.com/thing:231477
There you can download the files!
Step 2: How Do I Assemble It???
Follow the video!http://youtu.be/p3K7PBsq76M
Step 3: How Does It Shoot??
Watch the video!