Wooden Train Tracks USB Rechargeable Electric Engine
thingiverse
I've been looking to make this for a while now, and my 3-year-old is absolutely thrilled about it. Motor: https://www.aliexpress.com/item/TT-Motor-Smart-Car-Robot-Gear-Motor-for-Arduino-Free-Shipping-Wholesale/32642267017.html?spm=201652.10010108.0.0.4a944c Battery: https://www.aliexpress.com/item/best-battery-brand-3-7V-lithium-polymer-061730-601730-MP3-wireless-mouse-Bluetooth-stereo-280mAH/32662741428.html?spm=201652.10010108.0.0.4c45d6 Charger: https://www.aliexpress.com/item/5-pcs-Micro-USB-1A-Lithium-Battery-Charging-Board-Charger-Module-With-Protection/32402397769.html?spm=201652.10010108.0.0.2c4a51
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