Archive for category: NXT

  • Using a Rotacaster Wheel as a, ehm, Caster

    NXT, Robots September 17, 2010 07:25 no comments

    The Rotacaster wheels are not only great for making holonomic robotic platforms but also for the more mundane robotics models such as the one pictured above.  This is a simple construction meant to illustrate the idea. The advantage of using a wheel like this over a standard caster wheel is […]

  • Rotacaster Wheels Test 1

    NXT, Robots September 4, 2010 13:20 4 comments

    I made a quick video to show off the Rotacaster wheels.  As you can see traction is really great.  I will do further testing on various surfaces. The wheels’ small size give you great control when directly driving them from the motor; there is no need for additional gearing down.  […]

  • Rotacaster Holonomic Wheels

    NXT, Ramblings, Robots September 3, 2010 13:52 no comments

    This morning the mailman had another package for me!  It was a padded envelope with nothing less than the 4 Technic axle compatible holonomic wheel prototypes from Rotacaster.  I haven’t had a chance to build anything with them but my first impressions are: Very compact, they’re about 3.5 units wide […]

  • Super Size Me!

    NXT, Ramblings, Robots July 3, 2010 16:44 6 comments

    My good friend Eric likes to build big.  He is one of the designers and builders of the High Bay Storage System. A while back he told he wanted to build a tracked vehicle. He’s done this before, of course: Very nice, right? Not satisfied with this Lilliputian-sized tank (actual […]

  • Released: 3rd Party ROBOTC Driver Suite V1.5

    I’ve uploaded a new release of the ROBOTC Driver Suite. Version 1.5 has a couple of nice changes: Newly added: Drivers for Dexter Industries dFlex, dPressure and temp probe Test program for Mindsensors Touch Sensor MUX with HiTechnic Sensor MUX Driver for additional timers in ROBOTC Documentation changes: All drivers […]

  • It Is All About Balance

    NXT, Robots, Sensors June 11, 2010 10:29 no comments

    It seems balancing robots are all the rage now.  Laurens Valk made one that even hit the Make: Magazine’s blog.  It just so happened that Gus from HiTechnic was thinking the same thing a few weeks ago and has made one as well.  It’s a different model and also works […]

  • The adventures of BobBot Mk2: OMG a Can!

    NXT, Ramblings, Robots, Sensors May 21, 2010 20:03 2 comments

    BobBot Mk2 has learned a new trick: finding a can.  Finding cans makes BobBot very happy; he even chirps when he sees one and gets very loud when it’s about 10 cms away from one.  A lot of work still needs to be done: Approach towards can needs to be […]

  • BobBot Mk2

    Experiments, NXT, Robots, Sensors May 17, 2010 06:54 4 comments

    Meet BobBot Mk2, the intellectually challenged robot.  This subsumption based robot is probably the most challenging robot I’ve ever had to program.  It has quite a number of sensors: Mindsensors NXTCamV3 Mindsensors Magic Wand Mindsensors Dist-nx HiTechnic Sensor MUX HiTechnic EOPD LEGO Touch Sensor x 2 LEGO US Sensor Subsumption […]

  • Cool Project: Liquid Handling Robot

    NXT, ROBOTC, Robots May 1, 2010 19:36 no comments

    Mike Barnkob posted a really nice project on the ROBOTC forums;  a liquid handling robot.  I am sure you’ve seen them on most CSI shows; not like this one, however.  As you can see from the picture, it’s a fairly large contraption.  For additional coolness, he made use of the Firgelli […]

  • Please don’t mind the mess (Omniwheel part II)

    NXT, Ramblings, Robots March 14, 2010 23:39 no comments

    I love days when I really feel like building something, you know that inspired feeling you get?  Today I started building at about 9am and didn’t come out of my Lego room all day except for dinner and lunch. I took some pictures of the unholy mess my desk was […]