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 Robotics / RCX / legOS / 2205
2204  |  2206
Subject: 
Re: Measuring robot turn angle
Newsgroups: 
lugnet.robotics.rcx.legos
Date: 
Sun, 13 Jan 2002 02:19:53 GMT
Viewed: 
1891 times
  
Wanted to thank everybody for replies.  I ended up attaching an 80-tooth
gear to the rear axle (wheels are on the front set) after extending the
axle.  The rotation sensor is mounted on the chassis outside with an 8-tooth
gear meshing to the other gear, which gives me a 5:1 ratio or 80 (5*16)
rotation units (couldn't accomodate a worm gear to get more accuracy -
shucks ;-( ).  Since all of the axles (from the two differentials) turn
synchronously (by virtue of direct gear meshings), I can get adequate turn
angle and displacement measurements.

Very nice!

Robert Templeton



Message is in Reply To:
  Measuring robot turn angle
 
The drive system in my robot is an adder-subtractor (see (URL) which uses two differentials in order to get equalized forward/reverse drive while allowing turning and pivoting (turning in place). For navigational purposes, the robot should be able (...) (23 years ago, 9-Jan-02, to lugnet.robotics.rcx.legos)

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