ok uhm... i tried to make one today and yesterday. i say tried because its actually not that great itsself. I couldn't find any PEX at home depot so i used this 1/4 inch pvc, which was ok but I think i just messed up the c:b ratio... just needs some tweaking...

awesome, i'd love to se some plans fot that thing, just looks great

okay thanks again im gonna try makin one this weekend probably
and definately add some pics of the hybrid version, and plans 2 do it plz

or is it just a snug fit?

Okay tyvm, what did u use to seal the bottle heads onto the PEX?

ok um i figured out wat it is but what size PEX did you use?

thats awesome um... what is PEX and where could i get some?

uh... i dont understand why you used 2 pen tubes

hey im currently makind a mini using a hollowed-out expo marker as the chamber, but i cant figure out a cap or a plug to use in the back of it. any hints?