User:Jkim7610/enes100/Glorious3

Link back to team Glorious3

Give instructor top 3 project choice list
Hovercraft Engines Helicopter

Write problem statement
Get the hovercraft to propel itself and then hook it up to an arduino to start steering

Assign Task1
Get the Proppeller fan to rotate

Week1 Activities
splice lipo with different connectors. Hook up hovercraft with 9.6 3800mah battery. add resistors to hovercraft Rationalize differences

Week1 Narrative
I got the propeller to turn but with the lipo battery and the 9.6v battery there is too much power going to the back fan. Tried putting resistors to shorten the power but none of them worked. With the 18ohm it burned out, 22ohm sparked, and with the 100, 360, and 1.1k ohm resistors powered the hover fans but not the propeller fan. And tested the new motor.
 * [lipo on ics motor]
 * Burnt 18 ohm resistor for hovercraft.jpg
 * Ics turbo 3000 airsoft motor for hovercraft.jpg

Week1 Peer Review
Go to each team mates weekly summary wiki page. Read their activities and narrative. Then go the associated discussion page. Say something positive on this page. Try some constructive criticism. Add your name and 1sfoerster 13:32, 28 August 2011 (UTC) to create a time and date stamp. Create a new category if another team mate has already commented here.

Assign Task2
Bring in 8.4v batteries and get the propeller fan to work with resistors.

Week2 Activities
the 8.4v batteries were brought in but did not work because they were both dead. and none of the resistors are working with our hovercraft Rationalize differences

Week2 Narrative
i replaced the old tiny fan motor on the back of hovercraft with the ics turbo 3000 motor. the motor works completely fine with the whole setup. the pinion gear still needs to be removed and still trying to get resistors to work with the motor although that might not be necessary because the motor is significantly slower but has more power.

Week2 Peer Review
Go to each team mates weekly summary wiki page. Read their activities and narrative. Then go the associated discussion page. Say something positive on this page. Try some constructive criticism. Add your name and 1sfoerster 13:32, 28 August 2011 (UTC) to create a time and date stamp. Create a new category if another team mate has already commented here.

Assign Task3
use 8.4v batteries to reduce weight. remove pinion gear from motor and attach bigger fan with more spread

Week3 Activities
Bring in tenergy smart charger and 2 8.4v batteries for hovercraft. Take off pinion gear on motor with pionion gear remover. Rationalize differences

Week3 Narrative
The smart charger worked great for charging the 8.4v batteries. they were done within 30 mins or less. I wasnt really paying attention. A problem arose with my ics turbo 3000 motor. the pinion gear remover that i ordered was back ordered so the project part for moving the pinion gear was stopped short. I then recorded videos to see what the power outputs were with the 8.4v battery, 9.6v battery, and the 11.1 v battery. I recorded each one with a video. My observation showed that the 8.4v battery was too weak. There was not enough power to the hover fans to support the motor weight. everything was turning and working. When i connected the the 9.6v battery there was plenty of power to all the fans and the hover fans supported the motor weight. When i connected the the 11.1 lipo the positive alligator clip sparked and it was fried. I then replaced it with a new alligator clip and connected it back to the lipo battery. It worked fine and there was even more power. My conclusion to this is using the 11.1v lipo because it weighs less than the 9.6v and has a bigger dump than the 9.6v

Week3 Peer Review
Go to each team mates weekly summary wiki page. Read their activities and narrative. Then go the associated discussion page. Say something positive on this page. Try some constructive criticism. Add your name and 1sfoerster 13:33, 28 August 2011 (UTC) to create a time and date stamp. Create a new category if another team mate has already commented here.

Assign Task4
upload the three videos of testing power between batteries to youtube.

Week4 Activities
upload videos onto youtube. Rationalize differences

Week4 Narrative

 * [lipo on hovercraft]
 * [9.6v on hovercraft]
 * [8.4v on hovercraft]

Besides uploading videos onto youtube for the hovercraft videos, I also did research on the brushless motors that my group is using over the DC motor and airsoft motor. The brushless motor overall is better for this project because it has better torque and generates more power. Also over time the Brushless motor will generate less heat than the brushed motors thus not affecting the magnets in the motors as much with heat. I learned that heat reduces the magnetic power in the motors and it affects all motors with magnets. The brushless motors have only one real downside and that is cost. Because there is no real big market for the brushless motors yet cost is high to build and buy them. I also came up with a new design for the hovercraft. It is a fairly simple design that incorporates an arduino to operate the steering. To propel the hovercraft forward the hover fans will blow air into a small chamber lifting the craft up. In the back of the craft will be three holes to let air out so that the container does not get over filled with air and pop. As the hovercraft fills up with the air the holes in the back will also release some air and that force will push the craft forward. The arduino will play the role in steering. There will be two flaps on the far right and far left whole. One of the flaps will close to turn the craft one way or the other.
 * [new prop system]
 * [new prop system 2]

While working with the new propeller and all the electrically systems a problem arose. When the propeller was spinning the air was being blown in the wrong direction. We need to replace the propeller so that with the way the motor turns the wind will blow outwards not inwards like a helicopter.
 * New prop for hovercraft.jpg
 * New prop 2.jpg
 * New hovercraft design.jpg
 * New hovercraft design 2.jpg

Week4 Peer Review
Go to each team mates weekly summary wiki page. Read their activities and narrative. Then go the associated discussion page. Say something positive on this page. Try some constructive criticism. Add your name and 1sfoerster 13:33, 28 August 2011 (UTC) to create a time and date stamp. Create a new category if another team mate has already commented here.

Complete Project Page
Follow the "project done" format.

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During this week you will perform the week0 activities of the next project.