Building the Course Robot

For the progamming of the robot all of the blocks are pretty much in place. we have already put we have put in all of the blocks in and done the calculations. we had a huge problem with the light sensor though because even though the program is in place the light sensor would not go on. no matter what we did, checked the wires check the NXT check the programming change the light sensor nothing worked. so we came to the conclusion that it was the NXT that was at fault so we changed the NXT. but the NXT that we used was out of battery and since we already put it on we had to take it appart and put in another NXT which work. so we used that one because the light sensor came on. at first we thought we were going to make our own original robot but since it was to complicated we remade the task bot with a few touches of our own. we added an extra motor on top of a flat NXT. we builed a structure at the tip of the task bot to put our sound sensor our touch sensor and our shooter. we put a bar in the middle of the shooter connected to the third motor so that when the ultrasonic sensed the cans at 10cm it would make the motor turn up and trigger the shooter. we also connected two bars from the structure up front to the NXT for extra support. at first we used the standard task bot wheels. but then we changed to the thin carriage like wheels but we found that they were not going straight so we decided to use treads instead. and they worked perfectly. they were exactly straight. since there is no actual wheel size we experimented by trial and error to find the turning degrees. with that we were finished with the programming and were ready for actually doint the obstacle course official run.