This project was inspired by a UC San Diego undergraduate course. One of the projects there was a pendulum clock which students make out of laser cut acrylic. The clock ticks like a real clock, and lets you visualize how clocks work internally. The ticking mechanism is called an escapement, and is often used in other clock mechanisms. Because I don't have access to acrylic or a laser cutter, I decided to CAD the project and make it work with purely 3d printed parts and share it!
For this project you need a 3d printer, bearings (I used 2 fidget spinner/skateboard bearings), string, and a small weight (I used a metal keychain).
Step 1: Download the CAD Files!
For my files, the part tolerances (given 3d printer accuracy) are already included, so you don't need to worry about fit for all the parts. I used two 608 skateboard/fidget spinner bearings for this.
Step 2: Print!
Print the files with your 3D printer! The bracket is long, and may have a tendency to warp. Other thingiverse users have posted remixes where they have sliced the bracket in half. Find them on my thingiverse page here.
Step 3: Assemble!
Step 4: Enjoy!
Watch my video. If it is ticking like that and spinning in the same direction, you should be done! Sometimes the parts come out a bit large and the tips of the pendulum fork need a bit of sanding, but it should not be anything major.
Check out the amazing Hackaday article about the project here!
Thanks! Post a make on thingiverse if you get a chance!