Simple Graham escapement

thingiverse

My First Escapement! Everything is 3D printed except the pendulum, the thread, the nails, and the weight. Almost anything can be used as weights and pendulums. Changing and experimenting with different lengths of pendulums and various weights is relatively easy. If you're having trouble printing the threads on the pendulum attachment, try using these alternatives: https://www.thingiverse.com/thing:1143549, or check out this helpful YouTube video: https://www.youtube.com/watch?v=tBkbyDPpuh8&feature=youtu.be Print Settings Printer Brand: RepRap Printer: Prusa i3 Rafts: Doesn't Matter Supports: Doesn't Matter Resolution: Layer height: 0.2 mm Infill: 100% How I Designed This I used SolidWorks to design this. Custom Section Project Objectives: From this project, students will learn the basics of the Graham escapement and how time is measured in old pendulum clocks. Hopefully, they'll be curious about time measurement in other devices as well. Audiences: This project isn't too difficult, but you can still learn a lot from it. If you're old enough to 3D print, then you're probably ready for this project. Preparation: You need a weight, a thread for the weight, a long piece that will serve as a pendulum, and some nails to attach it to a wall. Steps: 1. 3D-print all parts. 2. Get some nails and attach them to the wall. 3. Tie the thread to the device (you should be able to figure out where to tie). 4. Attach a weight to the thread (not too heavy)! 5. Look for a long stick that could act as a pendulum. 6. Wind it up! 7. Attach the pendulum and watch it tick! Results: After this project, students will have successfully created a working Graham escapement. To make the most of it, they should experiment with different weights and pendulums and think about questions like: • Does a heavier weight affect the period of the pendulum? • Does the period of the pendulum increase if it swings higher? • Would this particular escapement be suitable for a real clock? • What could you change in the design to make it tick for longer periods?