This whole project was made at TechShop, a nationwide "Do It Yourself" workshop.
Blow guns are not legal in every state or country. Please check the legality of completing this instructable before continuing. These foam dart guns can fire a projectile with extreme velocity. Only responsible adults should complete this instructable. Do not shoot darts at people!
To build and use this foam dart gun you will need a buy a few things.
-foam darts (this build is based upon Nerf brand whistler darts)
-string or twine
-paint is optional
Very few tools are needed to complete the build.
-some kind of saw (hacksaw will be fine, I will use a vertical band saw in this instructable)
-a dremel tool (sand paper will work as well)
Step 1: Purchase of tube
Get yourself some 1/2" inside diameter PVC pipe. Note that the inside diameter measured with a caliper should be approximately 0.585". If you are using a different size dart, you may need to change the inner diameter of your pipe. If you are using a different size dart, measure its diameter (at the widest point) with a caliper. Allow 0.03" of clearance between the dart and the inner diameter of the tube.