Wall Hanging Pendulum Clock Operated by Weights

You may skip this story if you want to jump right into the description of the model:

Ten years ago I came across this book called “Make Your Own Working Paper Clock”. It works by cutting the pages into gear parts and glueing the parts together to form a functional clock. I like this book too much that I don't want to cut the book (I could only find one copy and photocopying it doesn't seem right). So I thought one day maybe I could make this clock without ruining the book.

Here comes the solution with a 3D printer. I measured the dimension of all parts and recreated them in 3DS Max, then exported them in stl and printed them out. There are fine-tuning and re-designin of the parts as making the parts by paper is different from making them by PLA.

After spending a lot of time and PLA, I managed to make it work. Credit goes to the author of this book. I learnt a lot from this book as I do not have engineering knowledge.

Model Description:

This model doesn't need battery to work. A weight is needed to provide gravitational energy.

I printed all parts in PLA. I used 2 mm dia. wooden stick as axis, and fish wire as string. Other than that, all materials are PLA.

I have included an assembly instruction with this model.

**Warning: this model is for advanced level modellers who like challenges and will make minor adjustment on the printer parts (enlarging holes, aligning parts, sanding down areas). For a clock to work accurately, fine adjustments and patience are needed.

I did not cover the clock with a face as I want to show the gears behind, which is the essence of the work. Enjoy.