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Quad Holomonic Drive Robot

Posted on April 30, 2012 by in Holonomic Drive, Lego | No Comments
HolomonicQuad-03L

Over at RJ McNamara’s Blog, he has put together a new Quad Holomonic Drive Robot based on the LEGO® NXT. The robot uses dual Rotacaster® Omni-wheels on each of the four axis’s and four LEGO® NXT Ultrasonic Sensors. Head on over to RJ McNamara’s Blog and check it out.

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Grease – Summer Nights Lego Stop Motion Animation

Posted on September 7, 2008 by in Lego, Memes | No Comments

This is for my wife, probably only she would understand:

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The Killough Platform Explained

Posted on August 30, 2008 by in Holonomic Drive | No Comments
killough00b

Over at TechnicBricks there is a fascinating post that does a great job of visually explaining the Killough Platform to the uninitiated. As you know I am a big fan of holonomic drive robots and if you are new to the concept, they do a great job of explaining the theory without over complicating the discussion.

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Lego NXT Rocker-Bogie Suspension

Posted on July 20, 2007 by in Lego, Rollers | No Comments

One of my many Lego NXT project ideas is to build a Rocker-Bogie system similar to the Mars Sojourner, Spirit and Opportunity rovers. It turns out a similar mechanism is ipresented by Brian Bagnall in his book titled Maximum Lego NXT: Building Robots with Java Brains. While I wait on that book to move from my Amazon wish list, to my shipping [...]

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A Beautiful Implementation Of The Holonomic Drive

Posted on June 3, 2007 by in Holonomic Drive, Lego | 3 Comments

As you can probably tell, I like the holonomic drive as a platform for robotics. Be sure and take a second to check out this version of the platform with a very simple but effective wheel design:

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Lego Mindstorms NXT Split Chassis Steering

Posted on January 22, 2007 by in Lego, Mistakes, Rollers | 4 Comments

Here is an idea I have been playing with for a little while. Instead of simply doing a car with regular steering, I wanted to try a split chassis design where the front of the car rotates in the direction you want to turn. Here are two attempts, but I abandoned any further design after driving both around with my phone via bluetooth. The steering [...]

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Lego Mindstorms NXT Segway

Posted on January 3, 2007 by in Lego, Rollers | 22 Comments

The other night I was researching building a balancing Segway like robot with the Lego Mindstorms NXT kit. I wanted a robot that could balance on two wheels and could move forward and backward. I also wanted the robot to recover when “pushed”. I was familiar with Steve Hassenplug’s Legway built on the Lego RCX platform, but [...]

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Lego Mindstorms NXT Holonomic Drive – Killough Platform – Rev 2

Posted on December 24, 2006 by in Holonomic Drive, Lego, Walkers | 9 Comments

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.

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Lego Mindstorms NXT Holonomic Drive – Killough Platform – Rev 1

Posted on December 14, 2006 by in Holonomic Drive, Lego, Rollers, Walkers | 8 Comments

I have been working on a few different designs for a holonomic drive robot. A true platform like the other killough platforms made from Lego would probably contain wheels that rotate differently, but I wanted to publish this design because it is interesting. I tried two different versions that you can see in the movie below. One version uses [...]

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Lego eBay Search Script

Posted on December 8, 2006 by in Lego, Site News, Technology | No Comments

If you look in the navigation on the right hand side on my home page, you will notice a new goodie. I integrated an eBay search script. Check out the post the have fun searching eBay for Lego.

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