Miner rescue
identify the Need or problem:
The problem is a miner is trapped in a mine (tube) and the only way out is up. We have to constuct a robot that will pick up the miner drag him out of the mineand drop him on the platform.
possible solutions:
Some possible solutions to solve the problem that have thought of is to design a claw that will be lowered into the mine by a crane, the claw will then grab the miner and bring him to the top. Top drop the minner on the platform i may possible put wheels on the crane to move it and the program the claw to drop the miner.
1st protype test and evaluate
This new design that I have made for the miner rescue is a very complicated piece of machinery. First of all I programmed a claw that will go down the tunnel using a motor, pick it up, and bring it to the top. The claw consists of two motors that move the arms accordingly to snatch an object, mimicking the human hand. During the test the claw successfully was lowered into the mine and picked up the miner the only problem is that the claw couldn’t reach the top of the tunnel. I have yet to put the wheels on the robot to move and drop the miner. Some ideas in order to improve it would to create a smaller claw so that it could reach the top of the tunnel, moveable wheels could pull the claw to a location which it could drop the miner, and to make the robot sturdier and less messy. I have a lot of work a head of me to finish this new design.
The Final Design
For the final design of my robot I have made so many changes. I started from scratch after the last prototype because threes was so much I wanted to do. I started off by changing the base of the crane my making it smaller and sturdier. I attached wheels on the bottom with a motor so that the crane can move back and fourth. The weight in the back is to provide the back wheel with more friction. The claw has been modified so that it’s smaller and now it only requires one motor. I rearranged the lowering devise so that the wheel is no on the inside of the string, this is because when lowering the claw the string was now pushing towers the motor and falling of the devise so putting the wheel on that side prevented the string form falling off. Also I added a new touch control feature so I can control the robot by my hand. With these new features and upgrades my robot is ready to attempt to pick up the miner.
mitchell_2.avi | |
File Size: | 3734 kb |
File Type: | avi |
Final Test
Light Sensor Challenge
My Goal for this challenge is to build a robot that can travel around a black line. the robot design was simple. two mottors in the front, each mottor powers one wheel, a wheel on an axel on the back and the nxt is connected on the top of the mottors. During the test the robot manged to travel around the whole circle on my first try. In total it took my 2 class days to complete this challenge.
The Program
This is the program that I used for the challenge. At the begging of the program, the arrow pointing down, is a land command. At the end of the program, the arrow pointing up is a jump command. Both of these together forms a loop so the program can run forever.
100_3984.mov | |
File Size: | 2741 kb |
File Type: | mov |