• Post Reply Bookmark Topic Watch Topic
  • New Topic
permaculture forums growies critters building homesteading energy monies kitchen purity ungarbage community wilderness fiber arts art permaculture artisans regional education skip experiences global resources cider press projects digital market permies.com pie forums private forums all forums
this forum made possible by our volunteer staff, including ...
master stewards:
  • Anne Miller
  • Pearl Sutton
  • r ranson
stewards:
  • Leigh Tate
  • paul wheaton
  • Nicole Alderman
master gardeners:
  • Carla Burke
  • Beau Davidson
  • Jay Angler
  • John F Dean
  • Nancy Reading
gardeners:
  • thomas rubino
  • Casie Becker
  • Mike Barkley

ZAP! Dale's lightning flash bike lock.

 
Posts: 9002
Location: Victoria British Columbia-Canada
697
  • Likes 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Electric assist bicycles are expensive and therefore prone to theft. I have just come up with simple deterrent. 

 My bike has a 48 volt battery. I could see using a coil similar to what is found in old vehicles,  to create the ultimate taser jolt, which would destroy the tools used by the thief. When  bolt cutters are used on a chain,  a circuit would be completed,  and ZAP!  The current would cause the bolt cutters to arc and be ruined.  I have seen this happen many times at demolitions. It's usually done by workers who are confused by the concept of flipping the main breaker.

 The design challenge,  is to build a good lock that will destroy only the tools and keep our thief alive,  to steal another day. In north America we're very concerned with the health and well-being of our thieves. Perhaps you live somewhere where this wouldn't be of prime importance.
............
 Whenever I have a house which I don't want the copper stolen from, I leave a live,  exposed wire in a very prominent location. Nocturnal thieves generally go for the easiest,  most visible target. The flash must be blinding.  They have left me bolt cutters, flash lights, gloves and many other artifacts.  I arrived one morning, to find a broken window and a really nice little sledgehammer with blood all over it. The door was not opened.   If only I had set up a camera.  He could be YouTube famous.
.......
 I'm not going to pursue this invention right now. It's something for the memory banks, should the need arise.
20150712_123426.jpg
[Thumbnail for 20150712_123426.jpg]
 
Posts: 51
Location: Adelaide, Australia
13
3
books urban bike
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Would the short circuit damage the battery in any way, or drain it substantially? I'd see that as an important design consideration. (More important than thieves' health, but I'm rather misanthropic about theft.)
 
pollinator
Posts: 493
Location: Longview, WA - USA
62
4
cattle forest garden trees earthworks food preservation
  • Likes 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Start with a small non-lethal prototype - just enough to stop a dog that is peeing on the tires...
 
Posts: 4
Location: Los Angeles
rabbit tiny house bee
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
One wise guy said that all bikes and locks should weigh 50 pounds to be safe. The lighter and more expensive the bike the heavier and more robust the locks.
 
They worship nothing. They say it's because nothing lasts forever. Like this tiny ad:
Our perennial nursery has sprouted!
https://permies.com/t/174246
reply
    Bookmark Topic Watch Topic
  • New Topic