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Robot Motor selection help

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rezaf

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Hi
I am building a robot but have problem to choosing it's motor.
my robot's weight is about 10kg with 30kg load of cable .
in first step I test DC motors (with gearbox)but when the robot go about 40 m the Friction of cable with earth don't give permission to move .
speed of movement : 3m per minutes

with this comments, can you help me, I don't know what torque or Nm is needed for pulling the unit and load of wire?

I Become glad with your help.
Best Regards.
 

Hi rezaf! i am in the same problem, you are facing. My robot weighs about 12 kg with 2 kg loaded. I want my robot to run like a car... i am going to try different motors like DC,GGM,PITMAN motors so on. But i have heard that planetary motors are best but are expensive as well. This link may help you
Robot MarketPlace - motors_geared.html
 

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