http://www.ebay.com.au/itm/ENGINE-49CC- ... 3369f1b7fa

$85 AUD 50cc pocket bike engine. ive bought one for a project i have lined up.

Well you have the same danger with an ATV or motorbike. they both as dangerous. It's upto you really

Or you could put a small engine on a bicycle, they dont chew through petrol and are worth and quite a lot cheaper.

I have no idea about quad bikes, but I dont think they are road legal.

heres a Suzuki Bandit legal quad:

You all are missing my point. About the gun the only thing i can say is job well done perhaps, the aluminum block doesn't cost much i know, but your machines aren't any cheap. We spuders we do innovations, we don't just read a book copy a design and let machines finish the job, that's not fun. I ha...

This one is fit for a large mouse. '
Nice work

that magazine's real ghetto

You could say its a cut above the rest

Why go to all that effort when you could just use a piece of PVC?

I mean its fairly versatile you can sleeve it or you could just use some galvanized pipe (for higher pressures), its also relatively cheap.

And adding fiberglass, epoxy etc are going to increase the weight.

For all those planning to make this gun beware that the 3-way valve acts like a release trigger, meaning that it wont fire when the trigger in pulled only when you release it, it will fire. im no expert but i don't think so, its normally open so its two threaded port flow constantly and when you pu...

For all those planning to make this gun beware that the 3-way valve acts like a release trigger, meaning that it wont fire when the trigger in pulled only when you release it, it will fire.

Are you planning on making another cannon?

What about the little .22?