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Subject: 
RE: gear differential
Newsgroups: 
lugnet.robotics
Date: 
Fri, 20 Nov 1998 20:39:31 GMT
Original-From: 
Medical Informatics Consulting <medinfo@aros.STOPSPAMMERSnet>
Viewed: 
4120 times
  
On Fri, 20 Nov 1998, alex wetmore wrote:
<snip>
> this is a fantastic device.  i played with it today and build a new
> robot platform using it.  i also flattened it by one layer, and i
> also make it one element wider (to make its width an even number,
> which makes it easier to work with).  the main problem with it is
> that there are tons of gears involved, so there is a fair amount
> of efficency loss compared to running the output of motors directly
> to wheels.
> 
> in my design i swapped the inputs and outputs (the existing design
> doesn't really carry what is an input and what is an output) and
> puts one motor on each input.  running one of the motors forwards
> or backwards runs the robot forwards or backwards.  running the
> other motor forward or backwards turns the robot left or right
> on axis.

Yes, there is some loss with all of those gears, but I think that it is a
small price to pay for not having to worry about the vehicle veering off
course because of a mismatch in motor speed due to the direction the
motor is working.   I believe Leo's original design used the lower torque
motors, so a little loss was acceptable.

Matt
medinfo@aros.net



Message is in Reply To:
  RE: gear differential
 
(...) this is a fantastic device. i played with it today and build a new robot platform using it. i also flattened it by one layer, and i also make it one element wider (to make its width an even number, which makes it easier to work with). the main (...) (28 years ago, 20-Nov-98, to lugnet.robotics)

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