Plastic bottle spud gun

Step 2 Reverse engineering

in which the intrepid builder turns a consumer product into its constituent components, thus reversing engineering.

The lighter will almost certainly not use screws, as using screws encourage disassembly. Use a judicious combination of ingenuity and force to open the outer casing, trying not to puncture any butane-containing components. Once you have opened the lighter slightly your fingers are better than a knife, more sensitive and less likely to puncture the butane tank. If you do puncture the butane tank, leave the lighter outdoors somewhere until it has emptied- butane is heavier than air so will pool in a room and a tankful will present an explosion hazard. Upon opening the lighter, take a moment to survey the ingenuity of the trigger mechanism that some unsung genius has designed and rarely gets recognition for. If you are saving the mechanism, note how it fits together.

Remove the piezo and test on a nearby piece of metal for spark length. Shock yourself with it if you must- it will only make it less surprising when it inevitably happens during use of the gun. Piezo shocks are mildly surprising but actual cause a negligible fraction of the pain of a camera flash capacitor shock.

Comments

[NIJU!]

yes camera flash capacitors realy hurt when you try to strip the wires in your mouth............... that explains my bad marks recently.......:)