Go Back   EcoModder Forum > Off-Topic > The Lounge
Register Now
 Register Now
 


Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 09-22-2020, 02:08 AM   #1 (permalink)
Master EcoModder
 
JulianEdgar's Avatar
 
Join Date: Nov 2017
Location: Australia
Posts: 1,080
Thanks: 67
Thanked 909 Times in 595 Posts
Hand cranked torch

Little project I did for UK electronics mag Practical Electronics. Ideal bedside torch - at night, you can still see the LED faintly glowing days after last winding it.

Much better durability than commercial rechargeable battery torches. I have capacitor-based hand-cranked torches still working well after 15 years!

Pics tell the story.














  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 10-01-2020, 12:58 AM   #2 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 17,537
Thanks: 4,732
Thanked 5,840 Times in 4,658 Posts
Neat!

Can you adapt it to falling weights like a grandfather clock?
__________________
.


Shower thoughts: Honey is the tastiest of all the insect vomits we have tried so far.

_________________
  Reply With Quote
Old 10-01-2020, 04:28 AM   #3 (permalink)
Master EcoModder
 
JulianEdgar's Avatar
 
Join Date: Nov 2017
Location: Australia
Posts: 1,080
Thanks: 67
Thanked 909 Times in 595 Posts
Quote:
Originally Posted by freebeard View Post
Neat!

Can you adapt it to falling weights like a grandfather clock?
You'd have to add a few more geartrains. But I like the idea!

  Reply With Quote
The Following User Says Thank You to JulianEdgar For This Useful Post:
freebeard (10-01-2020)
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com