That table top fan you have next to you is more interesting than you think! I took mine apart so I could show you how it works. The "four speed mechanism" releases any other button that was previously pressed down. Once a button is pressed a signal (voltage) is sent to the motor at the top of the fan. The oscillation motion is produced through the 4 bar mechanism. The last part of the video covers the gears that turn the 4 bar mechanism. The pin is part of the gears - when it is lifted the gears don't connect and the fan will no longer oscillate back and forth.

Purchase an oscillating fan similar to the one shown in this video: https://amzn.to/2H3fyyR

⌚Timestamps:
0:00-Intro
0:20 - Fan Intro
1:20 - Button Mechanism
2:26 - Signal to the top
3:03 - Four Bar Mechanism
4:03 - Fan Oscillation
4:35 - Gear Box
5:57 - Ball Bearings Again
6:32 - Speed of the Fan

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Sources:
   • The Oscillating Fan | Modelling Mecha...  
   • How a fan works!  The inner workings ...  
https://www.hunker.com/13408262/how-o...
https://makezine.com/2013/02/06/how-d...
http://dynref.engr.illinois.edu/aml.html
   • Video  

Music: (Soundstripe.com)
Bali Bash by Pala
Crystalline by OneZero

Made with Blender 2.81, Cycles Render with AI Denoising

Here is some of the gear that I use for animation:
Graphics Card: GTX 1080ti https://amzn.to/2t70HN0
CPU: i7-8700k https://amzn.to/2WEk9OE
Motherboard: Asus Prim Z370-A https://amzn.to/2t4EVth
Microphone: Samson Go Mic https://amzn.to/2GaSpvV
Mouse: Logitech G600 https://amzn.to/2UKhf9P

#b3d #OscillatingFan #HowItWorks