Quad Holomonic Drive Robot
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.
Continue ReadingGrease – Summer Nights Lego Stop Motion Animation
This is for my wife, probably only she would understand:
Continue ReadingThe Killough Platform Explained
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.
Continue ReadingLego NXT Rocker-Bogie Suspension
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 [...]
Continue ReadingA Beautiful Implementation Of The Holonomic Drive
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:
Continue ReadingLego Mindstorms NXT Split Chassis Steering
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 [...]
Continue ReadingLego Mindstorms NXT Segway
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 [...]
Continue ReadingLego Mindstorms NXT Holonomic Drive – Killough Platform – Rev 2
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.
Continue ReadingLego Mindstorms NXT Holonomic Drive – Killough Platform – Rev 1
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 [...]
Continue ReadingLego eBay Search Script
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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