On the internet.

Sound good, but a few questions:
1) Do you have any drawings or diagrams?
2) What is the length of the chamber?

Just curious, where on earth are you gonna shoot this thing?

Nice cannon. I found it entertaining that after all of the effort you went through to prevent any stress on the barrel, the plywood board fell right onto the barrel.

If you click on them, they are small.

Very nice, and I saw a little reference to me (the average spudder with the 2" diameter, 12 inch long pvc tank). This will be extremely people for lazy people such as me.

Why yes, yes it does. Now come get those bbs off of my driveway!

Oh yeah, and that is an expensive little cube. So a few questions about the 2 in. cube. (2 inches long, wide, and deep.)
1) it is long enough, right? (I'm pretty definite it is)
2) that should actually be wide enough for 2, correct ...

Ok, thank you. And Davidvaini, Fishboy and I built a vortex cap (thanks to your help).

ok, good answers, but I still want your opinions, folks. I don't really like ordering things on the internet, though, because I hate waiting.

Ok, so i built the vortex cap, but after making the videos of Fishboy's inline vortex, i decided that it was absolutely necessary for me to build one also. But first, I have some questions:
1) Should I make a full circle vortex block, or should i make the just-over-half-of-a-circle vortex block ...

Correctomundo you are. Now just build the stinkin' thing.

The vortex cap is an excellent design! It was amazingly easy for me (more like Fishboy, lol) to build. We (he) built it on Saturday, but I'm too lazy to post it yet.

well, since i live 20 minutes from Fishboy, I'm also in GA

lol ... I doubt that would only give you a broken finger. You'd have a broken finger AND a nail stuck in it

You could make a rather large Marker gun and put it inside of one of the humungous Marks A Lot s (after it has been hollowed out, of course). This was actually what I was planning on doing, since these things have such a large diameter.

Here is a link to the first image i found using google search ...