| Step 1: Getting stuff to build it This materials list is to build a very simple starter model potato launcher, with the intent to get the most bang from your buck (so to speak). By no means is this the only way to build a launcher, or nearly the coolest, but still able to provide hours of fun. MATERIALS: Obtain the following items: (qty 1 unless so indicated in []) 10" of 4" SCH40 PVC water pipe (chamber body) 36" of 1 1/2" SCH40 PVC water pipe (barrel stock, check out a much cooler alternative to this item) 4" PVC coupler 4" x 1.5" PVC bushing (if not available combine two, like 4x3 and 3x1.5) 4" PVC FSxFNPT adapter 4" PVC MNPT threaded plug PVC primer, one with dye in it if possible (purple, blue) PVC pipe cement, medium body is best [2] #8x2 1/2" flat or round head allthread machine screws, drive not important Two feet of 16g or lower stranded insulated wire Electrical and Duct tape (of course!) Red button BBQ ignitor/striker, a replacement found near new BBQ's EQUIPMENT/TOOLS: Suggested tools for building the potato launcher: Hand wood saw (or hacksaw, for cutting pipe, maybe you already got it cut at the store) Pocket knife Needle Nose Pliers Soldering Iron w/PbSn or Pb free solder (or just use tape and hope it works) Drill motor with bit 0.010" larger than machine screw shank Appropriate driving tool for machine screw (probably Phillips) Medium half round file for shaping pipe (or a lathe if you got one) Rag for PVC cement clean up (disposable) |