Warning, one of the parts shown in this post is inadvisable for a friendly bout of electric knife sparring. The high voltage generator was advertised as a 400kV module delivered a painful shock rather than the tinge of a cheap stun gun. I didn't know this when I constructed the first prototype.
Enough background
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One of the most straightforward designs to test, and which would fit nicely on a scrap of plastic, was to lace some bare wire through holes and wrap them around the outside edge, basically a whip stitch with wire. This was an early prototype which was never meant to be practical, only answer the question of design viability. Holes in the plastic were wider than necessary, and a battery and high voltage generator were stuck on the front with double-sided tape next to a switch hanging over the edge. The product was handheld but unwieldy.
The distance between the wires was too far to develop an arc, so a scrap of bare wire narrowed the gap until a spark erupted. When the electricity jumped, there was an audible snap, good for deterring would-be assailants.
The rest of the posts for this project have been arranged by date.
First time here?
Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
Completed projects from year 4
Completed projects from year 5
Completed projects from year 6
Disclaimer for http://24hourengineer.blogspot.com and 24HourEngineer.com
This disclaimer must be intact and whole. This disclaimer must be included if a project is distributed.
All information in this blog, or linked by this blog, is not to be taken as advice or solicitation. Anyone attempting to replicate, in whole or in part, is responsible for the outcome and procedure. Any loss of functionality, money, property, or similar, is the responsibility of those involved in the replication.
All digital communication regarding the email address 24hourengineer@gmail.com becomes the intellectual property of Brian McEvoy. Any information contained within these messages may be distributed or retained at the discretion of Brian McEvoy. Any email sent to this address, or any email account owned by Brian McEvoy, cannot be used to claim property or assets.
Comments to the blog may be utilized or erased at the discretion of the owner. No one posting may claim property or assets based on their post.
This blog, including pictures and text, is copyright to Brian McEvoy.
2019-05-13
Enough background
----------
One of the most straightforward designs to test, and which would fit nicely on a scrap of plastic, was to lace some bare wire through holes and wrap them around the outside edge, basically a whip stitch with wire. This was an early prototype which was never meant to be practical, only answer the question of design viability. Holes in the plastic were wider than necessary, and a battery and high voltage generator were stuck on the front with double-sided tape next to a switch hanging over the edge. The product was handheld but unwieldy.
Basically, I built a breadboard blade
The distance between the wires was too far to develop an arc, so a scrap of bare wire narrowed the gap until a spark erupted. When the electricity jumped, there was an audible snap, good for deterring would-be assailants.
Proving a spark
The rest of the posts for this project have been arranged by date.
First time here?
Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
Completed projects from year 4
Completed projects from year 5
Completed projects from year 6
Disclaimer for http://24hourengineer.blogspot.com and 24HourEngineer.com
This disclaimer must be intact and whole. This disclaimer must be included if a project is distributed.
All information in this blog, or linked by this blog, is not to be taken as advice or solicitation. Anyone attempting to replicate, in whole or in part, is responsible for the outcome and procedure. Any loss of functionality, money, property, or similar, is the responsibility of those involved in the replication.
All digital communication regarding the email address 24hourengineer@gmail.com becomes the intellectual property of Brian McEvoy. Any information contained within these messages may be distributed or retained at the discretion of Brian McEvoy. Any email sent to this address, or any email account owned by Brian McEvoy, cannot be used to claim property or assets.
Comments to the blog may be utilized or erased at the discretion of the owner. No one posting may claim property or assets based on their post.
This blog, including pictures and text, is copyright to Brian McEvoy.
2019-05-13
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