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Electric Vacuum Pen From Aquarium Air Pump.

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Step 23: Disassemble The Pen.

Picture of Disassemble The Pen.
First, take apart your pen. We will need the nose cap to screw off like this ones does.  Take out the contents of the pen.  We won't need the actually writing part or the springs or anything.  We just need the body of the pen and the nose cone.
 
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