2/26/2024 0 Comments Lizard prank gamesI didn't want to take a chance on drilling through the front of the box for the screw to anchor the spring to. I also added a small rectangular piece of 3/4" plywood to the inside of the box to attach the spring to. I needed a way to get the hinge a short distance away from the front wall of the box so it could rotate all the way to the vertical position. I added a small rectangular piece of 3/4" plywood to the inside of the box to attach the hinge to. I used 2 #8x1/2" machine screws to attach it to the hinge. I used 1 inch by 1/8 inch aluminum flat pieces for most of this mechanism.Ĭut a piece of the aluminum flat about 8 inches long and attach it to the 1' hinge with two holes as shown in the pictures. The trick here is that the lizard release has to happen after the lid opens to a certain point or the lizard will be launched into the under side of the lid and then fall back down into the box instead of going out of the box and making people run for cover. The lizard sits on a hinged bar with a spring attached. This mechanism releases a spring that shoots a plastic lizard up out of the box as the lid opens. Here is a list of the wood pieces for the plywood portions of the box: I used a band saw to cut out the notches for the hinges. The hinges are centered at 4 inches in from each end of the lid. In order to get this to sit flush with the top of the box you will need to notch out the back piece to recess the 2" wide hinges. Now you just need to add the top (lid) of the box. Again, clamp these in place while you pre-drill the holes and put in the screws. Clamp them in place to keep everything in alignment. Now add the 1-1/4" square pieces between the end pieces. Make sure you pre-drill the holes so you don't end up splitting the 1-1/4" square pieces. To keep things from moving while you attach the ends to the bottom, clamp them in place. The bottom piece is 1/2" thick plywood as well. Next attached the end pieces you just made to the bottom of the box. The 1-1/4" x 1-1/4" pieces are cut down from some left over pieces of 2x4's. The sides and the bottom of the box are attached to these 1-1/4" x 1-1/4" pieces with #8 1-1/4 inch deck screws. The end pieces are 1/2 inch plywood with 1-1/4" x 1-1/4" pieces glued around the outside. Start building the box by making the two end pieces. A perfect box without any signed of being shipped half way around the world is a sure giveaway that it isn't really a shipping box. I also wanted the box to look a little rough like a real shipping box so I wanted the pieces to be a little rough or beat up where possible. I used left over material on the box where I could. I highly recommend using these resources for your safety and for the most efficient use of the tool.Īlways work safe with the proper safety equipment and guards on your tools. There are also local woodworking clubs that offer classes at very reasonable rates for beginners. A lot of communities have classes at local colleges on the proper use of tools and machinery. If you are not familiar with a tool then you should ask someone who is to show you the proper way to use it. NOTE: If you plan on using any tool for a project please make sure you are familiar with the tool and all of the dangers associated with it. Materialsġ2 volt dc motorcycle horn - cheap one overseas from EbayĪluminum bar stock - 1 " wide x 1/8" thick This may also vary based on the material that you use for your project. Your build may need more or less than what I show. Not all of the tools in this list are required, but may make the construction much easier. The tools I used on the project were as follows:
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