The objective of this project was to design, build and test a tennis ball air cannon to compete in a game on the football field. My air cannon had adjustable pressure, elevation, Z-axis rotation and was controlled by an Arduino. The air cannon was mounted on a base of our design that will allow for rapid testing and evaluation of accuracy and precision. Using our testing data, we will then engage targets at known distances for points.
This project was a lot of fun. In the beginning of it it was dull and not fun, we had to learn how to work an arduino, and how to make it do all these different sequences to help the cannon fire. The arduino was suppose to tell when we were going to launch it and it was suppose to have lights warning but we didn’t have time to make all that work. Before the arduino process we had to design a stabilizer to support the cannon. Our stabilizer was the first one done out of the class and it was a very cool design.
This it the design of our stabilizer, we drew this out to get an idea of what it will look like and what we needed to build it.
We added more ideas to our first design before actually making anything, the final design included the base we were going to make and the stabilizer.
We had multiple ways to make our stabilizer but the way we chose to make a box out of the laser and put it together with our hands, the box had pegs and holes in it so each one could fit into it and stay. Then we made the part that is holding the cannon together, it is a piece of wood with two holes in it to go around the cannon.
This is what our stabilizer looked like when it was finished and when it was on the cannon.
After we designed and built our stabilizer we had to put together everything for the cannon and glue it together and then add our stabilizer on to it. The stabilizer was a little harder to put on but we eventually got it.
Me and Taylor cutting the piece of PVC pipe so we can put it together and be ready to put the stabilizer on.
When we finished cutting out all the pieces of PVC pipe we had to put it all together with PVC glue and PVC cement.
All the parts before we put it together.
The cannon put all together glued and cemented. Without the stabilizer.
We had an idea at first for our base idea for the cannon but we had changed it because mr. Twilley had told us we should keep it low for more stability.
Once we had finished the stabilizer building process and putting it on the cannon, we had to start probably the hardest, dumbest and worst part of the project. The Arduino.
Us making a light light up.
The Arduino was maybe the longest part of the project and the hardest, once we had finished it we started to design the base.
Our very first base idea.
When we finished putting together the cannon and put on the stabilizer we did all the finishing touches for the design for our base, which took us many classes to finish designing, then start to build it.
A picture of what our base will look like when we're done cutting out.
Once we were finished designing our base for the cannon we got to making it. The building portion of the base took very long. We had to so many pars for the building part of the base. First we had to take our design and put it on onshape. Then when we finished putting doing that we had to send it to the shop-bot. With the shop-bot it cut out the design we had sent to it.
When we were done cutting out the base from the shop-bot for the first time and we had to get them off because there were these tabs to hold the in, Twilley broke one of our pieces.
After that happened we had to cut out again and this time Twilley didn't break anything and we got to start building.
Me nailing our base together, the first step of the base construction.
After we put together the bottom of the base we had to put the entire thing together, this part was maybe the most fun part for me because i like using the tools in the shop, i like cutting out the wood and putting it together.
A picture of the base construction, we had two parts of the base we had the part that moved which was the x looking shape, then we had the part that held the cannon which was the other part.
We had a circular shape piece of wood between the two x shaped pieces of wood the helped it move left and right.
The wood circle on the middle is what helps it rotate.
After putting all the pieces together we had to put the cannon on and make ways to adjust the heights we shoot from.
The cannon put together and the first design we had to change the heights.
gWhile we were finishing putting together the base and putting the final touches on it we had to start making the height changing thingys.
The very first cutting out for our changing the height of the cannon.
During mid-terms me and Taylor stayed after to cut out the height adjusters, we stayed for like 3 hours cutting out the adjusters and when we were cutting them out the shop-bot messed up the first adjuster, it ended up cutting into the adjuster and me and Taylor were both really mad.
The shop bot cutting through our height adjusters.
Once we were done cutting out the adjusters for the cannon we had to put them on, measure the length of each one and then what the angle was.
The height adjuster before we cut them out on the shop-bot.
Once we finished building the cannon and putting everything together we had to test, the first test was just to see how far each shot would go with that pressure.
We had the cannon part where the ball was shot out of on the bottom but we changed it so we could shoot further because when it was at that height it didn't shoot far.
When we went to shoot our cannon after the other group did we loaded it up and filled it with the air pressure and found out that our valve was broken and had to change it out with another one, then we got to shoot and it didnt go far then we flipped it.
After we had the practice to shoot the cannon we got to shoot distance and shoot at a object. The object was a tarp with a bucket on top, the tarp was 5 points and the bucket was 10 points.
First we shot for distance and had the pressure set at 75, we had to shoot at three different heights the first angle went the farthest out of the three because it was the highest.
When we were shooting our cannon we scored a total of 25 points, we hit the tarp 3 times for 15 points and the bucket for 10 points, our group and the other group tied for points, we all had 16 shots.
Our group member revision.
After the project was done and all we had to do was do the final testing but the weather was to bad so we had a final group talk about everyones project, the discussion was very rich amd every talked amd it was cool to see what peopl thought of my group and what they did for theirs.
All in all the project was really fun and it wasnt really hard exept for the arduino if i had to change one thing for my project it would probally be the material we used it wasnt appealing to the eye but the stabilizer looked amazing.
In the end of the project i found out the i am not good with arduino but i am good with hands on work. If we work with tools and cutting things out i can do the easily, i really liked building and putting the entire cannon together, i didn't work with onshape much that was Taylor, he was the onshpe guy, i was the construction guy with Ronald and Marcus was helping both me and Taylor. I liked my group and wouldn't leave them, we all worked really well together and did every step for the project and it looked really good.