To LUGNET HomepageTo LUGNET News HomepageTo LUGNET Guide Homepage
 Help on Searching
 
Post new message to lugnet.roboticsOpen lugnet.robotics in your NNTP NewsreaderTo LUGNET News Traffic PageSign In (Members)
 Robotics / 5032
5031  |  5033
Subject: 
Re: Fishing for a tasty linkage/gearing/robotic building thread...
Newsgroups: 
lugnet.robotics
Date: 
Wed, 12 May 1999 13:58:38 GMT
Original-From: 
rajackson@qnx.comSPAMCAKE
Viewed: 
2686 times
  
Previously, you (David Warnock) wrote:
> Michael,
> 
> If you only need to make right angle changes of direction how about a design
> where the robot does not turn.
> 
> You could have one set of axles for forward/backward with 1 motor driving both
> sides so you go straight.
> 
> Then to change direction a second motor lowers a set of wheels/axles are right
> angles to the first set lifting the original wheels of the ground. Then use a
> 3rd motor to drive the bot from side to side.
> 
> Maybe not very elegant and ceryainly jnot very flexible but it should be
> possible with the only complicated bit being the lowering and lifting of the
> side to side axles.

This is very close to what I was thinking. if you lowered a plate, lifted the
bot and then rotated it and then rised the plate lowering the bot. With some
clever mechanics you mifgt get the lifting and rotating done with one motor.
I would assign one motor for movement, one switch to count unit distances and
a second motor switch for lifting, rotating. you may need a third motor switch
to do the lift/rotate function.

--
Did you check the web site first?: http://www.crynwr.com/lego-robotics



Message has 2 Replies:
  Re: Fishing for a tasty linkage/gearing/robotic building thread...
 
(...) I probably need the 3rd motor to power the program reading part of the vehicle. (27 years ago, 12-May-99, to lugnet.robotics)
  Re: Fishing for a tasty linkage/gearing/robotic building thread...
 
Hi Michael and everybody, I'm working on a robot (for my book) that uses a single motor to go forward and turn in place. I'm using a directional transmission, based on Michael Powell's original design: (URL) use the outputs of the directional (...) (27 years ago, 12-May-99, to lugnet.robotics)

5 Messages in This Thread:



Entire Thread on One Page:
Nested:  All | Brief | Compact | Dots
Linear:  All | Brief | Compact
    

©2005 LUGNET. All rights reserved. - hosted by steinbruch.info GbR