This k'nex clock runs entirely without the power of motors but uses a weight for energy. The escapement can work for about an hour before the weight needs to be lifted again but with some adjustments it would be easy to extend this period dramatically. The face of the clock displays the hour and minute using two separate hands that rotate independently. The timing is accurate to within a minute or so every few hours and the speed can be easily adjusted by changing the length of the pendulum. This project presented some challenges in terms of making the face and getting the hour hand to turn at exactly one twelfth of the speed of the minute hand. I hope you enjoy this instructable and have fun building.
Step 1: Assemble base
This base was made to fit the surface my clock was on but it can be adapted to fit any surface desired
Step 2: Build escapement
With modification, the gears can be changed to suit the speed and power you desire but this is the best formation I came up with
Step 3: Begin adding wheels and rubber bands
Just like the escapement, this is subject to modification but this way gives the clock accurate timing. Note that it is vital that the rubber bands are placed on when instructed or it will be difficult to put them on later.
Step 4: Clock face
This is the face and time-telling hands that you will now be building. It doesn't realistically matter how they look as long as you can easily identify them.
Step 5: Secure clock to surface
The weight which will be later applied to the front of the clock is enough on its own to pull the clock off the surface. What you need to do is used the necessary pieces to firmly keep the back down or put a large weight on the back. These pictures are just examples of what need to be done.