Archive for Rotacaster Omni-Wheels
I have reworked my LEGO Mindstorms NXT Forklift again. This is the Mark IV version of my NXT Forklift with the major difference to previous designs relates to the Boom that moves the Folks Up-and-Down. In this version the Boom is far longer allowing the Forks to be raise 10 Studs from floor level. The […]
I originally built this LEGO Mindstorms NXT Bug Bot Robot as part of a display at the TAZ-Brick (www.tazbrick.com) Collector Clubs Brixhibition North. The robot proved a hit with the under 10, LEGO Fanatics. Since then I’ve been playing around with the design of my Mindstorms NXT Bug Bot. In this new version I have […]
I’ve been working on a very solid, Holonomic Platform to be used with the large 125mm Rotacaster Omniwheels as part of my display for the TAZ-Brick Collector Club’s Brixhibition to be held on the weekend of 20-21 April 2013. LEGO Technics Compatible 125mm Rotacaster Omniwheel This Holonomic Platform is built around a very solid “Triangle” […]
My Original Forklift was part of my NXTLog FoodFactor Competition Entry, which needed a method to transport models of the large open top pallet type bins used to transport vegetables, such as potatoes, cabbages and pumpkins. I decided on a Forklift Truck to do the job. I felt that the original Forklift's Mast Lifting and […]
Yes it 's another Holonomic Platform Robot, but this ones special. I built this Robot to celebrate a package that arrived in the post today from Australia. Yes, more omni-wheels to' Beta Test'. But these are monsters compared to the original 48mm (2") Rotacaters. These new [rotacater] measure 125mm (5") in diameter, and weigh in […]
This Autonomous Tri-Drive Holonomic Platform is fitted with and uses 4x Ultrasonic Sensors for navigation. The RobotC Code is based on my previous post on using multiple Sonar Sensors in RobotC. The main challenge is to use all 4 Ultrasonic Sensors without them interfering with each other, resulting in non-valid measurement readings for distance values […]
When using Multiple Ultrasonic (Sonar) Sensors together, you need to configure the Sensors to use ‘Single Shot Mode’, so only ONE Sensor is taking a measurement at any time. If you have all the Ultrasonic Sensors on at once they interfere with each other and give incorrect readings. To get around these issues, you need […]
Yes, another Holonomic Platform. My son, Anthony requested a Holonomic robot to take to school for show-and-tell. So here it is with a few scholarly extras, including the code. A Holonomic platform is one of the many types of Holonomic drive trains — it can move forward and backward as well as left or right […]
This was to be Part 4/5 of my Melon Factor Project, for the NXTLog FoodFactor Competition for May 2012. It's unfortunate, but time has not been kind. I had more important real life issues that dragged me away from the project. Link to this post!
Part 1 of my NXTLog FoodFactor Competition Entry needed a method to transport models of the large open top pallet type bins used to transport vegetables, such as potatoes, cabbages and pumpkins. I decided on a Forklift Truck to do the job. Forklift Navigation Details: The prime purpose of the Forklift Truck is to transport […]
I've been working on building my contribution to the May 2012, NXTLog Competition. Part of my project needs a method to transport models of the large open top pallet type bins used to transport vegetables, such as potatoes, cabbages and pumpkins. I decided on a 'Line Following Forklift Truck' to do the job. My LEGO® […]
I've been working on a new LEGO Mindstorms NXT Dual Drive, Quad Holomonic Platform. This Robot uses dual on each of the four axis's. The Robot also uses four NXT between each of the four axis's. The four work in 'MODE 3: Event Capture Mode'. The are cycled through one-at-a-time, to avoid interference between each […]
After the proof of concept with Mark I, I have totally rebuilt the chassis using 12x Rotacasters in pairs.
A Simple LEGO Mindstorms NXT Trike Base: I needed a simple Trike type LEGO Mindstorms NXT Vehicle Base, that had to meet the following criteria: Quick and Easy to build Easy access to the Recharge socket on the NXT Li-Po Battery Easy access to the NXT's Sensor Ports and Motor Ports Easy access to mount […]
Lookout NASA, you have Rover competition. And it uses the amazing Rotacaster Omni-wheels for unsurpassed manoeuvrability in confined spaces. The Mars Rotacaster Rover is based on the current NASA Mars Rovers with their unique suspension set-up. Link to this post!
Part I Lookout NASA, you have Rover competition. And it uses the amazing Rotacaster Omni-wheels for unsurpassed manoeuvrability in confined spaces. There is no need of a steering mechanism to turn the Rotacaster Rover thanks to the unique wheel design. NASA Mars Spirit Rover I've had a few attempts, going back to the days of […]
Building a solid and reliable Killough Type Platform is not easy using the standard LEGO Technic Parts List. For the last 12 plus months, I have been refining my designs which use the standard NXT Motors. Due to the NXT Motors shape, keeping the Robot's overall footprint as small as possible has been difficult. […]
I received a a new batch of Rotacaster Omni-wheels several weeks ago which look and work fantastic. I gave them a good test run way back on 15th June 2011 and videoed my results. It's a while, but here they are fitted to a Killough type platform powered by LEGO Mindstorms NXT kit fitted with […]