Society of Robots - Robot Forum

Mechanics and Construction => Mechanics and Construction => Topic started by: snooza on February 13, 2010, 02:20:12 PM

Title: robot arm motors.
Post by: snooza on February 13, 2010, 02:20:12 PM: in the robots such as wakamura and asimo what motors do they use in the arms. because i need a motor or servo strong enough that the robot would be able to pick up something with out the motor snapping. for example maybe the weight of a shopping bag. but i need it to be cheap. as i am on budget.
please help
thanks in advance
-snooza ??? ;)
Title: Re: robot arm motors.
Post by: Razor Concepts on February 13, 2010, 04:41:04 PM: They should use some kind of precision gearmotor with encoders. Unfortunately to get the same level of performance you will have to pay big time... they aren't very cheap
Title: Re: robot arm motors.
Post by: nottoooily on February 14, 2010, 06:20:04 AM: Windscreen wiper, power window or power antenna motors! It's amazing how they're already made in a form that's ideal for lots of things.
Title: Re: robot arm motors.
Post by: blackbeard on February 15, 2010, 08:07:05 AM: Quote from: nottoooily on February 14, 2010, 06:20:04 AM
Windscreen wiper, power window or power antenna motors! It's amazing how they're already made in a form that's ideal for lots of things.

i've never made a robot arm but i've experimented in my HAL5 wannabe and found that those window motors are often very week even at say 30 rpm. (don't get your hopes up. i have 1 arm joint done and it's horribly week and no programming is done)
Title: Re: robot arm motors.
Post by: Admin on February 17, 2010, 06:36:49 AM: I'm not sure if this is true any more, but to the last of my knowledge, Honda uses secret high strength high efficiency motors that they won't sell to anyone.