Small robot navigates obstacles precisely

A team of engineers from the University of Washington has developed a small robot called "DirectHop," capable of stepping over a stair edge, landing, and then restoring its proper position in preparation for the next jump. The system relies on a new jumping mechanism that uses an electric motor connected to a fishing line, which wraps around and climbs a helical tower to generate a direct thrust similar to frog leg muscles, instead of depending on complex springs. The robot is supported by three articulated legs to ensure balance during the jump and to correct its orientation after landing, achieving an accuracy of up to 90%. The development aims to equip it with solar cells, an internal battery, and smart navigation tools so it can climb stairs independently. The estimated cost per unit is about $10, opening up possibilities for use in refinery inspections, farm management, and space exploration.

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