Here is a kit that lets you build 4 industrial robot models. The fischertechnik ROBO TX Automation Robots set has 470 parts. You can combine sets to do even more. With one of these sets, you can build a high rack storage system, 3-axis robot and 2 grappler robots.
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You get motors, buttons, and all the parts you need to complete your robot. You can get yours for under $210 at this time.
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