Mars Water Bottle Challenge

2/13/17 Objective: Using and Operator Controlled Robot, students must maneuver a bot to collect a water bottle, place it into a container, and return the bottle and container to Base Camp.

Think: Today, I will be working modifications to get over the ramp. On Friday, I took the robot apart and made the original design of the claw bot again so I can start over. Right now, I don't have any ideas on how to get over the ramp. Once I do, I'll test if it can get over the ramp.

Do: Today, I made a modification to my front wheels. I pu them on the inside close together. Unforntunatley, the part that holds the wheels gets in the way, so it still can't go up the ramp.

2/14/17 Think: Today, I am going to make modifications to my robot. Yesterday, I put the front wheels on the inside, but it didn' work. I will try something else out and test it.

Do: Today, I didn't make as much progress as I wanted to. I took apart a lot of the robot to arrange the wheels differently, but I still couldn't find a way. Tomorrow, I will work on it some more and try dirent ways to put the wheels.

2/15/17 Think: Today, I want to break the robot and start all over. I plan on building just the standard drive. I do plan keeping the claw intact.

Do: I did totally take the robot apart and began on the standard drive base. I still have a few more steps on the standard drive base. I plan on finishing tomorrow.

2/17/17 Think: Today, we are going to add the claw back to the drive base. Also, we need to test if the robot can go over the bump. I am pretty confident it will because I have seen other people do it.

2/16/17 Think: Today, I plan on finishing the standard drive base. I just have a few more steps to go. After I finish that, I will begin making modifications to the wheels so it can get over the bump.

Do: Today, I finished the standard drive base and modified the wheels. I added two more gears, and on the second new gear, I added a third wheel. I did this on both sides.

2/17/17 Think: Today, we are going to add the claw back to the drive base. Also, we need to test if the robot can go over the bump. I am pretty confident it will because I have seen other people do it.

Do: It finally did work. We learned we needed to drive the robot over the bump at an angle. Once you get one side of wheels up, it's easier to get the other side over.

2/21/17 Think: Today, we will continue making modifications on our robot. We are pretty much done with our robot. All we have to modify our claw to hold the water bottle. After that, we will test our robot on the course.

Do: Today, we made some minor modifications. We added weight to the back so it can go over the bump with the water bottle. We still need to make modifications so it can over the bump better.

2/23/17 Think: Today, we are focusing on getting over the bump. I think we just need to add weight to the front and put wheels in the back that have more tracttion. After that, we will test the robot to see if it works.

Do: Today, we finally could do the challenge in under 2 minutes. We moved the Omni wheels to the middle and moved the basket where we put the water bottle to the middle. It finally goes over the hump with ease.

2/24/17 Think: Today, we are trying to get the robot there and back in 2 minutes. Yesterday, we got really close, but we couldn't get the robot over with the water bottle. Today, we are just testing.

Do: We finally finished the challenge. We actually finished in 1 minute, 30 seconds. Tomorrow, I'll finish my spark page and turn in my project.

Success: Obviously, we were able to complete the challenge well under two minutes with ease. Our method of getting over the bump worked very well. The three wheel system was a complete success. Also, the place we put our water bottle worked very well. It never broke and it didn't have any negative effect on how the robot went over the bump. Overall, I thought our results were a lot more positive than negative in this challenge.

Failures: As I was saying, we didn't have many failures, but no challenge like this goes completely perfect. For a long time, we had a lot of trouble getting over the bump with the water bottle. I was due to the placement of where we put the water bottle on our robot. We made a little cage in the back to hold the water bottle. It added to much weight to the back, causing it to fall back every time we attempted to go over the bump. We eventually modified where we put a little cage and put it in the middle of the robot which worked a lot better. That was pretty much our only failure.

Credits:

Created with images by shrff14 - "water bottles"

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