Picture of The Easy Clock Mechanism
I designed this for demonstrating how a pendulum works in a clock. It's speed can be adjusted by how much weight is on the pendulum. I actually built this to be a timing device but I doesen't last long enough for what I need it for. Anyway I would definitly use it to show off to a science or engineering class the basics of a clocks internal working through mechanical motion. The video above shows how to use it.

Step 1: Body Step 1

Picture of Body Step 1
hunter9991 year ago
Wow! This is awesome! I have to build this sometime, quite interesting from my view! =D
JonnyBGood (author)  hunter9991 year ago
Thank! Please do build this. It is really fun to play with and mod. I use it as a timer and a larger weight powered version for a metronome.
nhormell2 years ago
thank you sooooo much i just happen to be doing a project for my pricibles of technology class and it something that moves made of knex
i am totally using it
JonnyBGood (author)  nhormell2 years ago
No Problem. I'm thrilled your using it.
Wow, thats pretty cool man!
JonnyBGood (author)  PotatoCoffee2 years ago
Yep. Youtube has a lot of precise knex clocks, but they are really complex. This just came about trying to simplify it.
Sometimes it's better to be simple!
JonnyBGood (author)  PotatoCoffee2 years ago
Another cool thing about this thing is I am using it as a timing device on my next instructable. It just has a three foot tall weight drop tower attached to it and a gear ratio. Well at least the prototype does so far.. it only runs for 18 minutes and I need an hour.
JonnyBGood (author)  JonnyBGood2 years ago
Never mind. I did make it. It was a automatic cat feeding device.... but when I tried it out, my cat decided he didn't want to eat for the next few days!!!!! We took him to the vet and they didn't know what was wrong. He's fine now but I destroyed the device. If you want to make it I'll tell you how it worked.
L1keABoss2 years ago
L1keABoss Bro
JonnyBGood (author)  L1keABoss2 years ago
Is there a way that can work without a wind up motor, i still want to make it a wind up though, but i dont have one of those wind up motors and i want to build this. btw good job!
JonnyBGood (author)  MrShadowKnight162 years ago
Of course! Just use a weight power!
1.Extend the axle with the gear attached.
2. Then wrap some string around the axle.
3. Attach a weight to the end of the string hanging off the axle.( I use a one or two large knex tires for the weight.)
4. As the weight drops the clock mechanism should work, if not, try winding the string the other way.

That should equal the same result as the wind up motor except this can run longer depending on the height the weight has to drop .

If you still are having problems just ask. =)
K thanks!
JonnyBGood (author)  MrShadowKnight162 years ago
No prob!
JonnyBGood (author)  JonnyBGood2 years ago
Thanks for trying to build this!
That's a cool clock ;)
JonnyBGood (author)  sandroknexmaster2 years ago