Cannon Portfolio Haley Hughes

Our goal: Build a cannon and base using PVC and wood. Our base needed to be able to move our cannon along the X and Y axis. If we do a good job then we should be able to hit a target.

Before we started the cannon we had to "master" the Arduino. Arduino is a device that can do what you tell it to with wires and coding. we were able to use the Arduino to turn on lights, sounds, sequences, and rotations. We were going to use Arduino to control our cannon but it was very complex.
First we all brainstormed together and drew our ideas on the white board. Now that we have a plan we can head to OnShape. These are pictures of our base and how we were going to move it along the axis.
Shown above was our second step of this process. We took our ideas from the whiteboard and created them on OnShape. The holes are for screws that will act as a stabilizer and keep the whole thing in place.

Both of the photos above are screenshots for our prototype. we created these on onshape. we have our base and ladder type things that will hold our cannon. A pipe will go through the holes to change increments on the Y-axis.

This is a screen shot of a piece of our lazy susan. it was also created on onshape but this is a 3D version of our piece. Onshape is a "wonderful" tool for us engineers to bring our brainstorms to life. The holes are for the pieces we created to move our cannon up and down the y-axis. and to keep the cannon in place.

We knew we were going to assemble our cannon soon so we needed to create our supports so our cannon would be stable. Our first idea did not work very well, the support kept falling off. Our next idea slid onto both sides and was more sturdy. However at the end when one support broke off we realized that they were not helping much so we broke them off.
We had to cut our PVC pipe so that we had multiple pieces to assemble our cannon. We used the miter saw to cut the PVC pipe. The pipes are going to create the cannon. We used one pipe to create two pieces and used other PVC materials to finish the cannon.
We had to apply primer to the PVC pipe to cement them together. we had to be very focused and work together and be precise because the primer dries fast and once its on it wont come off. In the last photo the wood connecting the PVC are barrel supports. they give the cannon support and keep it leveled.
Before we sealed our cannons with the caps we had to add barrel supports. Our first barrel supports shown in the first picture did not work. Our second barrel support worked out better. The barrel supports gave our cannon support so it wouldn't twist and turn. Our third photo shows our completed cannon. Now time to finished our base.
WE headed to the ShopBot to cut our pieces that we made on OnShape shown at the beginning. The ShopBot is so efficient and a great tool for us to use when in need of cutting out larger pieces than the laser can. We shared our files to the ShopBot, Screwed the board down, we created a pathway, checked the measurements and were ready to cut.
Next we cut out two half circles to put between our circle piece and the square piece of the base to reduce friction. We used the laser to cut these pieces out of plastic. Emily and Julia are gluing the plastic down to the circle piece lining the holes up.
Finally with everything cut out we were able to assemble our base put the cannon on and then finish it with the screws and the supports in the back. After months of hard work we did it now the last step is to test.
TEST TIME! this was the absolute best part of the project everyone was so excited. shown above in the third picture Mr.Twilley is demonstrating how to put air(PSI) in the cannon. the air is what is going to launch the tennis ball that we used.
This was our data for our first test day we shot at 3 different angles using a constant 75psi. Our results show that at 84 degrees the ball was launched the furthest.
Eden, Delta, and overnight oats. As Mr.Twilley I would give this portfolio a 100%.
I Am Haley Hughes and I approve this Message.

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