Need help in making a robotic arm for the first time

I am trying to make a robotic arm which can detect wastes on the ground, pick them up and put it in the dust bin. I want to make it as cheap as possible, so I am planning to use 3 dc motors that I got from an old DVD player. Can someone help me how should I approach to making this project as a beginner? Which online resources should I use to learn specifically in regards to my project and what components will I need?

Hi, that sounds like a fun project. I recommend checking out as they have a variety of relevant tutorials. Specifically, use the search function there to search for key words like motor, servo, and robot.

Thank you for your valuable reply and suggestion. Really excited to get started into this project!

another resource:

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Baby steps are sometimes the better way to a goal.