We are currently decreasing the width of our two side wheels so that we can have a sharper turning radius as well. Therefore, theoretically, it will have a quick reaction time. We chose it because it holds our sensor almost underneath the model so it reads the most recent information on where the line is. The red square from the last challenge was removed so that helps but there are some sharp turns and gaps on curves that we have not been able to get past. We've tried several designs and modifications on those designs and we still have not successfully completed the lap with gaps. We failed at some challenges, but it was never due to some group dispute or problem, just other technical problems.The Line with Gaps Challenge is indeed quite a challenge. No one had any major issues with their role in the group. We all had good attendance and contributed equally to the blog.
#Nxt tug of war robot designs Bluetooth
We felt somewhat jipped over this one since most other groups bypasses this challenge all together by connecting their smart phones via bluetooth to the robot and thus controlling it remotely. We had a good distance throw but the ultrasonic detection never worked well and we failed to find the ball in the test. At one point it was so bloated and heavy it couldnt turn itself properly. We had a lot of redesigns over the ball throwing mechanism and as such the vehicle itself. In the final catapult challenged we completely failed. We could never really get the pathfinding program to work and when we heard you could just use a button to assist your robot across gaps we went with that. Despite this obstacle peace was held and group continued to cooperate. The group went thru a lot of arguing about what we can do to make this program work and frustrations were felt among everyone in the group. We originally tried to to program the robot, but even trying to build some simple commands, loops, and if statements with variables is extremely complex in the lego programming language. It sounds simple to just follow the same line but with gaps but it becomes a major programming problem to build some sort of pathfinding for your robot. Once we got the simple programming down for the line challenge and a few tests to see how fast our guy could go, we got the fastest timing on the line following challenge!
![nxt tug of war robot designs nxt tug of war robot designs](https://ccrma.stanford.edu/~zune/sources/projects/robotwar/robotwar.files/overview.jpg)
This was further exaggerated when several groups added extra weight to their vehicles using non-lego parts and as such our car didnt stand a chance against these behemoths.ĭespite the previous failure our group kept on trucking. We soon realized this was a major design mistake as we saw several other groups abandon the car model completely and realized it was better just to sit still on a massive platform and pull the opposition in with a winch. We went with a car with a winch attached to pull the opposing vehicle in. We kept the same pacing going into the second project: the tug-of-war contest.
#Nxt tug of war robot designs trial
But, we got it worked out in the 3 rd trial and car blazed to 2 nd place! Initially we had some bugs to work out with the rubber band getting caught causing our car to barely move the first trial and go backwards the second trial. In the beginning we rocked, for the very first project we had our prototype out within 3 minutes and began working on second models immediately. However we did have our share of shortcomings on some projects.
![nxt tug of war robot designs nxt tug of war robot designs](http://kelseysrobotics.weebly.com/uploads/8/9/2/4/8924784/7493076_orig.png)
We were very aggressive about approaching the competitions and it shows in the number of challenges we finished first or second.