The robot was built for less than $100 with the most expensive item consisting of the omni-wheels and couplings. Its creator explains a little more about its functionality and construction.

The Arduino and therefore the 5AA battery holder are used that powers it into the tail section of the snake. The servos are powered by a separate supply, the 7.4-volt battery pack, goes into the ...

While child-sized humanoid robots like the Unitree R1 have come down in price, not everybody has a spare $6,000 to throw ...