Step 1: Gathering Materials and Tools
-Empty pack of gum
-1/8 Tube ( old pen tubes work great!)
-Normally Open Button switch
Step 2: Making the Frame
Step 3: The Coil
Once you have your tube ready, tie a half knot with the wire onto the tube and super glue it in place. The position of the knot should be about 1 inch from the end of the tube. Now start wrapping the wire around and around the tube toward the other end. Try to get a nice tight fitting coil, and keep wrapping until it is about 3/4 in. long, then apply a coating of super glue to the coil. Now you have completed the first layer! I found that 7 layers works pretty good for this compact coil gun. To make another layer, simply start winding the wire back to the knot where you first began. Keep winding until you have about 7 layers, remember to glue each layer as well. This takes some time so don't try to hurry it because the coil is one of the most important parts of the gun.
*Important Note* Do not change the direction you wind the coil, exp. if you start winding clock-wise do not switch to counter-clock-wise.
Step 4: Making the Curcuit
Your circuit might have a push button switch on the circuit board to charge it, I just soldered the switch closed and put a switch onto the positive lead to the battery. this switch is now the charging switch.
Now solder the capacitors or capacitor in parallel back onto the circuit.
Once your coil is made solder one of the leads to the negative lead of the capacitor bank and the other to the positive, but wire in a push button switch. this will be the firing switch.
Now re-pack everything into the frame and glue the switches on the edge of the frame so that you can operate them from the outside.
Step 5: Fitting It Together
Step 6: Ammo
Step 7: Fire!
Please ask if you have questions