Posted: April 20, 2014 in Vehicles, Machines
Tags: Lego, Mindstorms, EV3, robot, Color Sensor, sumo, sumobot, battlebot, fight, storm, sumostormer
Finally, the SumoBot I’ve been talking about for sooooooooo long: SumoStorm3r! SumoStorm3r is my entry to SprinkleOtter’s SOSumoBot Challenge. It didn’t take me that long to build SumoStorm3r; the long part was fixing and upgrading SumoStorm3r just right until I was satisfied with the result. As you see, SumoStorm3r is very streamlined and well-armored. It is different from other SumoBots in that it has no weapons or offenses, just one defense: push the opponent out of the ring. Only one LEGO® MINDSTORMS® EV3 set was used!
SumoStorm3r’s sensor system is unique (to me, at least; that’s all that matters :P). It uses both the EV3 Color Sensor + EV3 InfraRed Sensor. The Color Sensor is safely tucked behind a sturdy front bumper. The Color Sensor senses the black boundaries so that it can turn around safely. SumoStorm3r even has a secret trick. Since SumoStorm3r is to face the RCX Ramps sumo, I needed to conquer it with a special skill. Ramps likes to fool sums in letting them drive over it and out of the ring, so I programmed SumoStorm3r to back off Ramps when it detects the yellow surface of Ramps. The IR Sensor senses the opponent to charge and push out of the ring.
SumoStorm3r drives with treads. To avert any chance of getting things stuck in it, I covered the treads around with guards. The smooth surface all around prevents SumoStorm3r from getting caught by the opponent’s weapons or the opponent itself. SumoStorm3r’s chassis is very rigid and strong. Treads have much traction to grip the surface and push the opponent.
Here is a picture of the initial outcome; it didn’t happen that way. I used almost every piece in the EV3 set, and this offensive ramp ended up a little too weak for fighting. Wish me good luck!
Posted: April 6, 2014 in Animals, Humanoids
Tags: Animal, biped, EV3, Lego, Mindstorms, penguin, robot, walk, Walking
P3NGUIN 2.0 is an upgrade to P3NGUIN. Some detail worthy to note are the little fingers above the flippers. The walking mechanism is the same (check out the original P3NGUIN for more detailed information). The legs are longer and the flipper-feet are also longer for stability. I tried to make sure that I didn’t make them too long; it needs to look like a penguin, right? The major improvement to P3NGUIN is that now, P3NGUIN 2.0 can walk on carpet AND smooth surfaces such as glass! In able to walk on slick desk, I put grip on the rear of the legs. The grips are taken off when walking on carpet. First video demonstrates P3NGUIN walking on carpet, and second video shows P3NGUIN walking on my desk. Keep a sharp lookout for my SumoBot! Enjoy.
Access the videos here:
P3NGUIN 2.0 (carpet)
P3NGUIN 2.0 (desk)
Posted: April 5, 2014 in Animals, Humanoids
Tags: Animal, biped robot, EV3, Lego, Mindstorms, NXT Alpha Rex, penguin, robot, walk, Walking
P3NGUIN is another entry for EV3Community’s WalkingBot Challenge. P3NGUIN is a biped robot; he walks on just two legs. P3NGUIN is a very fast biped; I am pretty sure that he is faster than the official NXT Alpha Rex (1.0 + 2.0). Watch the video for yourself and tell me what you think. So you may be thinking, “What’s up with the main picture?” Penguins live in cold weather areas, right? (Most of them, anyway.) So I had P3NGUIN on “snow”. Yep, the marshmallows are big “snowballs”. I had to work on this robot for a little bit longer than I usually spend (on this sort of project). This robot walks with only one EV3 Large Motor.
The walking mechanism; let me explain it to you. The Large Motor drives forward at 100% power, turning 36z gears on both sides. Those turn a 12z gear which turn more 36z gears. One side of an angle beam attaches to the EV3 Brick, and the other side attaches to a hole on the bottom 36z gear. This cause the legs to move forward and backward, out and in, respectively. Please view the slideshow for clarification.
Thank you nxtstep101! Your robot, My Very First Biped, has inspired me to create this robot with which I am well pleased with. I’m thinking of including a slightly changed and improved P3NGUIN for The LEGO® MINDSTORMS® EV3LUTION.