I updated my Lego NXT holonomic platform a bit. The main changes revolved around the orientation of the motors so I could get true 360 degree movement.
As you can see the motors now orient in a circle around the robot.
I tried two different mounts of the motors. A high mount, that gave good ground clearance but had less stability and a low mount, that was more stable, but required all tires/feet to be on the outside of the robot. The video below shows the differences.
Here is an example of a lower motor mount with the feet on the outside.
Another shot of the motor mounting and the feet.
I also added some cross bracing for the motors to my original triangle platform base.
Here is the video:
High-res photos are available in my Lego Mindstorms NXT Picture Gallery.
Robolab 2.9 December 31, 2006
Nice, you have REALLY improved you old one.
Does the vibrating give you less accurate results though?
Rich January 5, 2007
The vibrating does make navigation harder, but it reduces friction as the robot moves about so it is a bit of a trade off.
TechFresh May 24, 2007
Is it faster than a regular monitor?
evan June 22, 2008
could I have instructions for this holonomic nxt robot?my email is email@example.com. thanks!
evan June 22, 2008
sorry i meant firstname.lastname@example.org
Troy Ostrander January 3, 2010
Very nice work! Could I have instructions and program for this holonomic nxt robot? My email is email@example.com. Best, Troy
Maximillian ZÃ¼ll December 27, 2010
Very nice. I buildt a holonomic platform too, but I don’t know how to program it. May you mail me the program? My email is firstname.lastname@example.org. My respect.
Focus March 15, 2011
wow, wonderful! Could I have instructions and program for this holonomic nxt robot? My email is email@example.com
Thank you very much!
RCHS Robotics January 13, 2012
That’s awesome! I have a 4 motor holonomic platform built, but I have no idea how to program it. Could you help me by sending a sample program? My email is firstname.lastname@example.org.
jesus carpio October 14, 2013
building instructions please!!
Jan Cuevas September 20, 2017
Building instructions please