How to Build a Home-Made Piezoelectric Generator for Under $100?

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Discussion Overview

The discussion revolves around constructing a homemade piezoelectric generator for under $100, with a focus on using readily available materials. Participants explore various ideas, materials, and potential applications, particularly in the context of integrating the generator into a bike tire for electricity generation.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant suggests using materials like aluminum foil, wire, and a silicon swim cap to create a piezoelectric generator.
  • Another participant proposes taking apart LED-flashing children's shoes to investigate their components, although this may not align with the original goal of generating power.
  • A different participant notes that piezoelectric generators in gas appliances produce high voltage but low current, questioning their utility for battery charging.
  • There is a mention of the possibility that some shoe companies might use piezoelectric materials, prompting further investigation.
  • One participant raises the idea of using dynamos instead of piezoelectric generators, suggesting an alternative approach to generating electricity while biking.

Areas of Agreement / Disagreement

Participants express varying opinions on the feasibility and utility of different methods for generating electricity, with no consensus reached on the best approach or materials to use.

Contextual Notes

The discussion includes assumptions about the effectiveness of piezoelectric materials and the practicality of using components from children's shoes, which remain unresolved. Additionally, the potential limitations of piezoelectric generators in terms of voltage and current output are noted but not fully explored.

Who May Find This Useful

Individuals interested in DIY projects, renewable energy solutions, or those looking to explore alternative methods of generating electricity may find this discussion relevant.

Natko
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With a budget of less than $100, does anyone have an idea on how to make a cheap piezoelectric generator using materials found at home?
(aluminum foil, wire, battery, and a silicon swim cap maybe?)

I plan to modify this generator to then integrate it inside a bike tire so that whenever I ride, I can generate some electricity (for my phone perhaps).
 
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I have always wanted to take apart one of those shoes that children wear that flashes a LED.
Why don't you take one of these shoes apart and let us know what's inside.
 
The skechers kids shoes? There's a battery inside, not quite what the OP is looking for I don't think. ;)
 
There are piezo electric generators in gas hot water systems and gas barbeques, but they generate thousands of volts and give very little current, so they are not going to be much use for battery charging.

They work by hitting a piezoelectric crystal, so you could get less voltage by not hitting it so hard, but you would get less current as well.
 
justsomeguy said:
The skechers kids shoes? There's a battery inside, not quite what the OP is looking for I don't think. ;)

I believe some of those shoe companies use piezoelectric materials. I'll have to look into that.
 

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