I'm new to this forum and kinda new to spud guns although i've been looking to build one for a few years now.
I build a small "Q-tip cannon" a while ago out of a pen and medicine bottle that worked well, followed by a slightly larger cannon from a piece of copper pipe and a rollaids bottle... it was slightly less then sucsessful (exploded at me after 3 shots

anyways I'm finnaly, probably, gonna spend some money and buld a real cannon. I have been looking for plans lately but they all seem too simple for me. I want some specific things from a cannon and all i keep finding is simple designs.
First off I can't seem to find pvc pipes... but there is lots of sizes and lenths of abs (i think thats what it is... the black stuff) at home depot ranging from 1-1/4" to 4" about 3' long to over 10' long.
I dont want to go spending money on something only to get boared with it 2 weeks later and want another... I want something with a fairly simple design that can be upgraded and do lots of stuff (I always liked cool gagets

I have always liked the ones that look like this
-====--------------
. /
Does anyone know where I can find plans for something like this?? I cant find a thing... also sorry if this is the wrong place for this kind of thing, im new here

thanks for your time