Clock Gear Optimizations for 3D Printing

A description of the optimizations I make for better 3D printed clock gears.

The first optimization is an extension of a concept called "Fancy Gears" that originated on a now defunct website called "Gary's Wooden Clocks". The premise is that clock gears only rotate in one direction, so only one surface of each gear tooth actually matters. The other surface can be any shape as long as it does not interfere with the other gear teeth. I make optimizations specifically to allow clean 3D printed gears without any unnecessary retractions.

A second optimization was needed to allow for the way the Arachne slicing engine handles inside corners. The resulting gears only take around 60% as much time to print. Optimized gears print in 13 minutes compared to 22 minutes for the original gear.

This is my newest clock with all of these gear optimizations. It is my most reliable weight driven clock.
https://www.myminifactory.com/object/3d-print-small-8-day-clock-337387

These clocks have the "Fancy Gear" optimization, which provides the biggest benefit. They were designed before the Arachne slicing engine was available, so they print best using the classic slicing algorithm.
https://www.myminifactory.com/object/3d-print-32-day-clock-easy-build-156759
https://www.myminifactory.com/object/3d-print-large-easy-build-clock-with-21-day-runtime-159691
https://www.myminifactory.com/object/3d-print-medium-pendulum-wall-clock-142460
https://www.myminifactory.com/object/3d-print-large-pendulum-wall-clock-137009

Contents:
0:00 Intro
1:24 Original gear
2:18 CAD optimization
3:25 Fancy gear concept
5:42 Optimized gear
6:07 Arachne issues
6:48 Arachne optimization 1
7:34 Arachne optimization 2
8:42 Optimized slicer view
9:49 Summary
11:26 0.6mm nozzle

Видео Clock Gear Optimizations for 3D Printing канала Steve Peterson