The RoboCopBot Design Team consists of William Murderous, Samuel Baked, and Andrew Esten
Parking Space DC #2
For Design Challenge 2 we had to program our robot to go a certain distance. To do this, we created a linear graph to find how far the robot travels during the times of 2, 5, and 8 seconds, and extrapolated. Our data showed this equation for the linear trend line: y=16.583x+11.75. We plugged in 210 in. for y and solved for x, getting 11.955 seconds. http://www.youtube.com/watch?v=QxSVM3E9gmY&sns=em
Time Distance
2 sec. 50.5 in.
5 sec. 83.5 in.
8 sec. 150 in.
11.955 sec. 210 in.
Time Distance
2 sec. 50.5 in.
5 sec. 83.5 in.
8 sec. 150 in.
11.955 sec. 210 in.
Ramp It Up DC #3
For Design Challenge 3, we were tasked with building a robot that could climb a 7' x 9'' plank at increasing degrees of steepness, with the final goal being a straight vertical climb. To begin, we brainstormed different ways to climb the board, and realizing we needed a lot of torque, we came up with our first design. With Mr. Croke's advice, we visited his website to learn how to correctly gear it to increase torque. If I were to do it again, I would time the ascent so it would stop exactly at the top, instead of falling and breaking.
http://www.youtube.com/watch?v=GuMhzE3qBH8
http://www.youtube.com/watch?v=GuMhzE3qBH8
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Bot Ball DC #4
Questions
1. Our task was to build a robot to compete other robots to remove three balls from the arena by picking them up and throwing them over the divider, within the three minute time limit.
2. Like always, we had the entire Lego set to work with, including the three motors, which we determined should go to the two wheels and a claw.
3. We started with the claw idea, try varying lengths of the arms for it to neatly pick up the ball. We also had to position the claw high enough that it could drop the ball over the wall.
4. Our final prototype is the Mind-storm supported on four wheels, with motors on the front two. We have a lengthy claw controlled by the third motor in the front. The claw has a hooked attachment that can extend over the divider to knock down or otherwise incapacitate the opposing robot.
5. At one point, our robot managed to flip itself over. After suggestions from other teams, we removed the top attachment, which made it too top-heavy, and changed the back wheels to provide more support.
6. This challenge taught us how to use three motors, instead of the usual two. Additionally, we learned the concept of controlling the robot through a cellular phone, instead of a predetermined program as per usual.
7. If we were to do the project again, I would try for a catapult structure, as opposed to a claw. After observation, it seems that this design picks up the balls just as quickly, but can get them over the divider faster and easier, with less turning required.
2. Like always, we had the entire Lego set to work with, including the three motors, which we determined should go to the two wheels and a claw.
3. We started with the claw idea, try varying lengths of the arms for it to neatly pick up the ball. We also had to position the claw high enough that it could drop the ball over the wall.
4. Our final prototype is the Mind-storm supported on four wheels, with motors on the front two. We have a lengthy claw controlled by the third motor in the front. The claw has a hooked attachment that can extend over the divider to knock down or otherwise incapacitate the opposing robot.
5. At one point, our robot managed to flip itself over. After suggestions from other teams, we removed the top attachment, which made it too top-heavy, and changed the back wheels to provide more support.
6. This challenge taught us how to use three motors, instead of the usual two. Additionally, we learned the concept of controlling the robot through a cellular phone, instead of a predetermined program as per usual.
7. If we were to do the project again, I would try for a catapult structure, as opposed to a claw. After observation, it seems that this design picks up the balls just as quickly, but can get them over the divider faster and easier, with less turning required.