And here's the best part: I made instructions for my blog viewers!
Here they are:
First off, you will need to actually build the gun. Here's how to use the building instructions:
1: Click this link to see the YouTube video.
2: Put it in full screen mode so you can see all the details.
3: Pause the video on each picture so you can follow the instructions.
If you don't actually want to build the gun and just want to watch it build itself in fast motion, watch this:
Next, you will need to get rubber bands. I got my rubber bands in an assorted pack of rubber bands (you can buy these at most office supply stores). Next, I measured them to make sure all the ones I used were about the same size. My measuring tool was a 13 hole Lego beam with a peg on each end (12 units apart, 11 holes in between), and a peg 9 units from one end (8 holes in between, 3 units/2 holes from the other end). Rubber bands that I used with this gun were loose when strung along the 9 unit section but were tight along the 12 unit section. Here's a demo:
Now you need to make the darts. The video explains it pretty well, so here it is:
Once you've done all that, you're ready to load and fire the gun:
NOTE: This gun is very powerful and potentially dangerous/destructive. BE CAREFUL!