I made this impromptu water balloon cannon for my kids to play with! It's a simple quick project made to be fairly safe. Subscribe to my channel: http://bit.ly/1k8msFr MORE PROJECTS, POSTS AND EVENTS http://www.iliketomakestuff.com TOOLS LIST: (some are better than the versions I own) http://azon.ly/e8E7ik - SawStop cabinet saw http://azon.ly/4voyj7 - Dewalt 20v drill driver combo http://azon.ly/gpTPHU - Dewalt compound miter saw http://azon.ly/QMbXby - Grizzly G0555LANV Bandsaw http://azon.ly/HCnLgH - Dremel Kit http://azon.ly/r2afgX - Bungee cord http://azon.ly/NRPkrk - Water balls 4" PVC pipe (3' long) 3" PVC cap 1" PVC pipe (2' long) Want to support ILTMS? Get early viewing, exclusive content and more... http://www.iliketomakestuff.com/patreon BUY A SHIRT, STICKER, PENCILS and MORE!! http://www.iliketomakestuff.com/store FOLLOW: http://twitter.com/iliketomakestuf http://www.twitch.tv/iliketomakestuff http://instagram.com/iliketomakestuff http://facebook.com/iltms I used a 3' length of 4" and 1" PVC pipe. I also used a 3" cap which fits right inside the large pipe. I traced the smaller pipe on the larger one, marking it a little larger than real life. I marked a cross line several inches from one end. I ran it through the bandsaw which cuts the line on the top and bottom of the pipe, to cut both lines. I used a cut off wheel on a Dremel to trim the piece out. I switched the wheel out for a grinding stone and cleaned off the corners of the cut. This is to cut down on friction. I made sure the smaller pipe fit in the slot and moved freely. Then I made sure there was enough space on each side for a hand, and marked the pipe. I cut the small pipe along that mark then rounded over the ends on the disc sander. With the cap, I used the belt sander to carve out a small dip in the  top. Then back to the disc sander with the cap. I sanded down the entire outside  of the cap to make it's diameter a little smaller. When you cut the section from the PVC, it puckers a little, making the interior size a little smaller. Sanding the cap makes it fit better inside. I drilled a small hole in the center of the cap. Drilling from the inside of the cap helps drive the bit to the center. I also drilled a hole in the middle of the smaller pipe section. I ran a long bolt through a large washer, then through the cap from the inside. I added the small pipe to the bolt and added a washer and nut to hold the pieces together. This assembly dropped down into the slot cut in the larger pipe. Then I added some PVC cement to the open end and slid on a 4" coupler. Since the pipe had the pucker, I clamped the cut edges to the coupler while the cement set up. This helped maintain the correct interior shape. I cut two pieces of old pressure treated 2x4 into sections about the same length as the pipe. I drilled a hole through the coupler into the 2x4 below. I connected them with a short decking screw. I used some polypropylene strapping to hole the pipe down to the 2x4 on the front and back. These straps cut very easily with a utility knife, but will hold up well outdoors and are not sharp like the similar metal strapping is. I also had some used pressure treated plywood that I cut down to a smaller size, with one diagonal side. I traced it and cut a second identical piece. I screwed these to the sides of the 2x4 with decking screws. This gave lift to the front of the cannon. I cut down two more short sections of 2x4 and screwed them onto the front edge of the side panels. I used 4 decking screws each as these will receive a lot of force when the cannon is used. On each of the 2x4s I drilled a hole and screwed in an eyelet. This was in line with the cut out in the pipe. I carefully cut the hooks off of a 4' long bungee cord. I cut the cord in half and burned the ends with a lighter to stop them from fraying. I fed the cord through each eye and tied them into a figure 8 loop knot. The other end of this knot can easily slip over the handle piece. I adjusted both cords until they had mostly even tension on both sides. The entire thing got sprayed black, which made it really look like a cannon. On our playset, I drilled a hole in the railing. I also drilled a hole roughly in the middle of the second 2x4. I added two washers on the railing then ran a washer and bolt through the 2x4. Second channel: bit.ly/iltms-2

Watch me build an outdoor sectional couch. You can read a full how-to and download free plans at http://www.iliketomakestuff.com/outdoor-sectional/ You can help support my videos by becoming a patron at http://www.patreon.com/iliketomakestuff Be sure to read the full how-to and download free plans for this build at http://www.iliketomakestuff.com/outdoor-sectional FOLLOW: http://www.iliketomakestuff.com http://facebook.com/iltms http://twitter.com/iliketomakestuf SUPPORT: http://www.patreon.com/iliketomakestuff Second channel: bit.ly/iltms-2