First let's start-off with some materials.

• 1.1/2" ABS "Y"

• 1.1/2" 45o ABS Elbow

• 2 1.1/2" pieces of ABS pipe

• 1 1/2" pipe connector

• 1.1/2" male threaded adaptor

• 1.1/2" screw cap

Those pieces should be all that you need in order to build this lesser project. All major hardware & Plumbing stores should carry those items Looking around yer dad's shop or garage never hurt either, it's a great place to start if yer into savin dough.

Another part of this project is the actual "safety" part of it. What is the point of all this? Well, I'm about to tell you.

All that is needed is some measuring. Find the threaded cap. Cut a material so that it can fit into this cap (ie. Innertube rubber, cardboard etc.) This will act as a rupturable membrane IF anything fucks up in the cimbustion chamber. This explanation is pretty cut and dry but hopefully you get the idea...Please understand!!!!

All that is needed to finnish is to put this material in the inside of the cap and screw it tightly onto the end of the male adaptor. That's it. The cannon will fire no differently than it would have without this adjustment.

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