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A cheap 8-legged motorized spider for around
$20. I got this on sale from ToysRus. It is called "Cyber Spider" and is
made by Wow-Wee inc. Eventually, this toy will become obsolete but by
examining and understanding the mechanics in this toy I can utilize those ideas in
other designs. I'm specifically looking for forward,
reverse and turning capability. |
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The body is about the size of a hand. It came with an
infrared
controller seen here on the arm. The spider could move forward, turn right
slowly and turn left slowly. It also had sound effects, LEDs and a light sensor. |
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Removing the top reveals a gearbox with dual motors and a set
of
printed circuit boards. I'll toss the boards since I want to focus on
understanding the mechanical design. Later on, I could add my own
microcontroller brains and sensors for autonomous
operation. |
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A close-up of the dual motors. The motors have
a worm gear on the end of their shaft. The left motor controls the
sweeping of 4 legs on the left side and the right motor controls the
sweeping of 4 legs on the right side. |