N20 Combat Chariot
thingiverse
Either engrave or laser cut two plates. Print the motor brackets, tapping threads into the holes within. Either print spacers or use M3 nylon standoffs, 30mm spacing providing clearance for a 18650 battery pack in the lower deck. Use 16 M3x6mm bolts. The wheels feature o-rings designed for 40mm sewage piping. Secure everything else to it and you will have a robotic platform for those N20 motors. Space is available for an Arduino Uno with a h-bridge shield on top, as well as strapping an ultrasonic sensor or headlights in the front. You can customize it however you like. To obtain the necessary parts, visit https://pt.aliexpress.com/item/Wholesale-Xpn20-2-2pcs-3-12V-Gear-Motor-25-1000Rpm-200Rpm-Dc-Motor-6V-Electric-Motor/32382176611.html?spm=a2g0s.9042311.0.0.6a2eb90aRl5BO2. Only the plates require customization, with readymade components available on Aliexpress for mass production. The brackets are not necessary, as nylon straps can be used instead. Modify the plates and drillings to suit your needs. Consider printing a pair, adding laser diodes and detectors, and creating robot laser tag.
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