Jul 13, 2014

Space Elevator

Every now and then you come across an idea build with MINDSTORMS that is just amazing.
Check out this self building system designed by Andreas Håkansson from Sweden, just feed it decks and watch it rise all the way... to space.

Just imagine the modules are made from Carbon Nano Tubes and it might actually work... as explained in this video:

Meanwhile, who can write the formula of how long it would take for this robot to build up to a given height?
: . .

Jul 9, 2014

Line Follower Sensor for NXT or EV3 (LineLeader-v2)

MINDSENSORS created a new sensor for the use with the EV3- home and EV3-education software,

On their webpage they state the following:
This is an array of 8 sensors with controlled light source, returning you values of the sensor readings. Your program can then decide if you wish to follow line with it or do something else.

  • Easy to mount on your NXT or EV3 robot facing ground
  • Reporting dark and light pattern from array of 8 sensors
  • Detect and follow a line
  • Write line follower programs with your own decision making
  • Develop your own PID control algorithms or use built in PID control

You can download a sample program and driver blocks for various languages.

Enjoy following the line at high speeds!


Jul 5, 2014

BrickFair 2014 in Virginia, USA

Here's another guest blog entry by Ian Warfield, Mindstorms Theme Leader for BrickFair VA:
"BrickFair VA will be holding four separate contests for LEGO MINDSTORMS enthusiasts this year. The long-running favorites Stock Sumo and Unlimited Sumo will be held as usual, and the Capture the Flag contest is returning from last year. There will also be a new contest for this year: the Pole Vault.

Pole Vault is a event that tests your robot's gymnastic ability. Contestants must travel to a one foot high wall in the center of the table, jump or climb over it, and reach the other side safely. This contest is recommended for KFOLs and TFOLs, although FOLs of all ages are welcome to compete.

In Capture the Flag, two robots will face off from opposite sides of the table, and the winner will be the first robot that can locate the flag, grab it, and find its way back to home base. The flag is represented by an infrared HiTechnic ball, and as an added complication, it starts out on a flag carrier robot that is wandering randomly around the arena. This contest is recommended for AFOLs, although FOLs of all ages are welcome to compete.

The official contest rules can be found at the following links:

BrickFair VA will be coming to the Dulles Expo Center in Chantilly, VA from July 30 to August 3, 2014. Public hours are on August 2nd and 3rd from 11:00 AM to 4:00 PM."

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