Step 5: Wire it up (this is familiar...)

Strip two pieces of solid wire long enough to stretch from the holes to where you intend to mount your piezo- allowing plenty of extra length leaves you space for multiple strain reliefs (pieces of electrical tape). Strip at least 1cm from one end of each, and bend these ends at a sharp right angle. Insert the longer stripped ends into the electrode holes. Arrange the wires so that the tips are 5mm apart or closer, and firmly tape (and preferably hot glue) the ends in place.

Attach the other ends to the piezo. Solder is not necessary at this point, one of the principal joys of working with piezo sparkers is that the spark can jump millimetre gaps in wiring so contact joints are perfectly good enough. This is also one of the principal frustrations of working with piezo sparkers- several types of tape are considered a conductor by the spark, including possibly duct tape. When possible use electrical tape, heat shrink or solid plastic to insulate the wires.

Firmly attach the piezo to the outside of the bottle. If you are using only the element, you may want to consider how to insulate the two wires from eachother to prevent it sparking over.

Realise the flaw in your plan- plastic bottles tend to deform under lateral pressure such as is required to operate the sparker button. Improvise and attach some long rigid object underneath the sparker to distribute the load- what else but the ubiquitous bamboo skewers? Realise this isn't much better, but in the absence of PVC pipe it will have to do.
yes camera flash capacitors realy hurt when you try to strip the wires in your mouth............... that explains my bad marks recently.......:)
wow!! thats coool an it looks safer then kine haha heres a foto of mine
wow tell me how it fells to loss the right side of your body <br />
<p>actually thats not a bad idea wrapping it in tape. if it blows it will more than likley rip than explode.</p>
Is it stable? I mean I helped build one out of sewage grade pvc for strength but that looks a little flimsy. Maybe I exaggerate?<br />
<p>Use pressure rated pvc.</p>
That's because it's a little flimsy.&nbsp; I've had one of these and shot it hundreds of times without any problems, but this is definitely a low-power design.&nbsp; The small chamber volume and (usually) loose fitting projectiles mean it's not at a great risk of exploding, but it's always a possibility.<br />
yeah I suppose you are right.. even mine is temperamental, NEVER ever use a plastic bottle as a projectile &lt; they tend to expand and form a immovable plug. <br />
extremely dangerous. i aint paying your medical bill when you break your eadrums and put out your eyes with shrapnel.
why will you? no relations to author whatsoever
NO DUH <br>
it looks like a death trap lol
Depends which end you are on :)
oh, i don't know. could be either.
or neither, if I build it ( mine doesn't fire)
I think powder blue is the third least manly color for a gun, with a light shade of purple at second.
this is good but check out my version on my profile its the air gun
just a newbie here, but uhhh...... you dont have to use a video. i made 2 projects before i even got into instructables so i werent able to put a video. Its ok, at least hes got photos(face it: pipol w/out photos are ununderstandable (no offense)).
Very nice work PKM, its about time you got a proper ible up!!<br/><br/>however...<br/><br/>some things missing...<br/><br/><strong>VIDEO</strong><br/>

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