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This is my first completed robot hence the name JR-1. I used 1/4 inch melamine for the body and bick pen sections and bolts for the risers. The motos are K'NEX motor and gearbox combinations. The tires are also from K'NEX. I hot glued two tires together for each side to give it some width. The tires were "open" on the inside anyway and this fixed that problem! The rear caster was $1.99 from Harbor Freight and looks super! I put the Arduino and the Adafruit motor shield ...
This is a companion discussion topic for the original entry at https://community.robotshop.com/index.php/robots/show/jr-1-joes-first-robot