A robot able to walk forward, backward and laterally like a spider, which also is able to identify obstacles and get around them with the aid of an ultrasonic sensor.

This robot has four legs with two degrees of freedom to obtain totally eight degrees of freedom; this is the minimum requirement to be able to form a shape similar to a spider and also to get acceptable movements. This choice obliges to use a controller for eight independent servomotors and it must have some functions to control their positions and speeds. A lot of attention is paid to shapes so that it is possible to avoid challenging solders and bondings which makes it possible to assemble it just using some double stick tape. The chassis of the spider is composed by a base, where servomotors and legs are fixed. In this way the obtained shape is very similar to a spider. Because of the flexibility of the vetronite, an additional part was designed to install under the robot, making it more robust and eliminating dips. It is strongly suggested to make the robot chassis using two coppered sides PCB, in this way all the structure will be stronger. Alternatively, any other lightweight and rigid material like 2mm thick aluminum or 4mm thick plexiglass can be used. It is suggested to paint it in black so that it gets more similar to a spider. 

This project comes in kit. The components have to be soldered to the included PCB.

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