Published: May 1, 2017
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By: Steven Gamache, Cal Poly Pomona
Category: Mechanical Engineering
This the the stair climbing robot prototype that was required, along with an extensive report, for my intro to machine design course. We utilized an existing drivetrain from a scrap hand drill mated to an RC car rear differential powered by a 7.2v LiPo RC car battery in order to reach a sufficient gear reduction. The chassis and axel standoffs were hand bent. This initial prototype failed to perform its task of climbing a set of stairs, but it did have the ability to climb a single curb. Modifications I would make to improve the design would include: belt design for better front traction, changing the weight distribution more forward, and increase the ground clearance.