Step 3: The PVC CONSTRUCTION--The Base--Dry Work
4 2" End Caps
3 2" Tees
1 45 Degree Coupler
approx 2' of 2" Pipe
You will need to cut 7 pieces from the 2" pipe . I cut them about 2". This made the joints I would be making flush. (In hindsite, I would recommend doubling them to 4-6 inches to give a more stable base--sometimes kids get excited and pull on the launcher wire and it can tip the launcher over)
I cut them using a chop saw with a wood block set to the correct measurement.
Once I had all of them cut I smoothed and squared the edges by rubbing each end in a circular motion on a piece if 220 grit sand paper on a flat surface.
Make a hole in the center of one of the end caps using the 1/2" bit .
Clean up the hole.
Push the capped end of the schrader valve through the inside of the end cap and pull through using vice grips or pliers. It is set when it looks even.
Using the 7/32 Drill (3/16 will work in a pinch) drill a hole in the center of a second end cap.
Tap this hole using the 1/4 inch NPT tap . If you don't have a tap you can work the brass fitting in slowly.)
Use Teflon tape to cover the the threads of the 1/4" Air hose Male Bib . Apply counter-clockwise.