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Hello friends, I like to drive +- 50 small motors to move a small ball or others objects up and down with a nylon wire (max 10gr) with a vertical distance of 2 meter . I need to control the exact distance of each object and to synchronise all motors to make some figures pre-programmed on 3D position up and down of all motors!

Hello friends, I like to drive +- 50 small motors to move a small ball or others objects up and down with a nylon wire (max 10gr) with a vertical distance of 2 meter . I need to control the exact distance of each object and to synchronise all motors to make some figures pre-programmed on 3D position up and down of all motors! Sorry for my bad English, If it's more easy for you in French, this is my mother languish. Please use French in case... If you know some schematic or the theory to help me to make this kind of project, will be great, may be with Arduino and stepper motor with encoded wheels. I'm open to all suggestions, Thank you, Marc from Belgium