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Subject: 
Re: gear differential [URL]
Newsgroups: 
lugnet.robotics
Date: 
Fri, 20 Nov 1998 12:07:26 GMT
Viewed: 
1993 times
  
lego-robotics@crynwr.com (Daryl McLaurine [C]) writes:

Hello, all...
I was the one that brought up using a gear differential to solve
another's problem.  Here is a URL of a better design  than mine.

http://www.nd.edu/~lego/grp4/backup/www/grp2/www/91geared.htm

But is it a good idea to put a differential between the two motors?  My
experience with this is kinda bad.  I once did something quite similar,
but when the drivetrain was loaded, one of the motors reversed, making
the diff output zero.  This happened, BTW, when I geared down the motors
by 3:1 before passing the axle to the differential.

I think you can safely let two motors drive the same gear, without a
differential inbetween.  Putting an 8t cog on each motor and a 40t cog
between the two should provide much power.  Just make sure you run the
motors in the same direction!

Fredrik



Message is in Reply To:
  Re: gear differential [URL]
 
Hello, all... I was the one that brought up using a gear differential to solve another's problem. Here is a URL of a better design than mine. (URL) you. PS: new project Got the idea looking at the design for a Lego Joystick... Robotic Fencing! 3 (...) (26 years ago, 20-Nov-98, to lugnet.robotics)

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