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Subject: 
Re: Differentials on Tanks
Newsgroups: 
lugnet.robotics
Date: 
Sat, 15 Sep 2001 03:25:40 GMT
Viewed: 
388 times
  
In lugnet.robotics, "Sean Watson" <SeanWatson@ec.rr.com> writes:
I am having a real problem. I want to use a tank for my basic design,
but I have to build one that can go perfectly straight. Well, not
perfectly straight, but as close as possible. My problem is that I think
one of my motors is much more powerful than the other. I have tried
switching the motors to verify this. I have also tried many different
gear ratios. I know that differentials are good for handling this sort
of thing, but I can't seen to come up with a tank design that implements
a differential. Anyone had any luck in this area?

Sean Watson

Sean, you can find one on my website, http://www3.sympatico.ca/jdkalpin.
'The Lego Lugger' is a tracked vehicle in which the error between the two
driven tracks is measured using a differential and encoder (revolution
counter).  Software (in this case ROBOLAB) corrects to allow it to track
straight.  It can also receive steering directions from a 'remote' or
another RCX.  It was designed as a wide-body minimum parts platform for
datalogging.  I have included building instructions and an MLCAD.DAT file.

Jerry



Message is in Reply To:
  Differentials on Tanks
 
I am having a real problem. I want to use a tank for my basic design, but I have to build one that can go perfectly straight. Well, not perfectly straight, but as close as possible. My problem is that I think one of my motors is much more powerful (...) (23 years ago, 14-Sep-01, to lugnet.robotics)

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