Society of Robots - Robot Forum
Mechanics and Construction => Mechanics and Construction => Topic started by: scott111000 on November 04, 2014, 10:18:26 AM
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Hello, New member here and first posting. It may be a stretch to call this a robotics project but here goes. It's a working transformer costume, similar to this:
http://digg.com/video/this-street-performer-has-a-working-transformers-costume (http://digg.com/video/this-street-performer-has-a-working-transformers-costume)
I need help sizing the motor.
Wheel diameter is expected to be 10" so I estimate 50 to 90 rpm to achieve walking speed. Total weight with costume between 170 and 190 lb.
I'm looking to direct drive a single front wheel with a battery powered DC motor to accelerate from stopped position to walking speed on level asphalt. How much torque would I need? Can anyone recommend a vendor or even a specific motor?
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Hi
Welcome. Sounds like fun.
Here are some links that might help:
http://www.societyofrobots.com/RMF_calculator.shtml (http://www.societyofrobots.com/RMF_calculator.shtml)
http://www.robotshop.com/blog/en/drive-motor-sizing-tool-9698 (http://www.robotshop.com/blog/en/drive-motor-sizing-tool-9698)
http://robotsforroboticists.com/motor-selection/ (http://robotsforroboticists.com/motor-selection/)