Friday, September 23, 2016

Cereal Pamphlet Project

Names: Aidan Sochowski, Dru Tibbetts, Anthony Valiaveedu, Mykyta Solonko     

     For this project we measured the amount of iron in a couple of breakfast cereal. We later researched the need of iron in the body and how much the person needs. We also looked up the problems that can occur if too much iron is consumed. Below is our project. For some reason, the same image is shown four times instead of one. 

Monday, August 29, 2016

Golf Ball Challenge Lego Mindstorms


   For this challenge in PLTW, a mindstorm robot had to pick up a ball, drive it under a ramp, and put it into a box. The ramp is slanted with the lowest part closer to the box. It is to our advantage to make the robot as short as possible so that it does not have to drive for a long time alongside the ramp. We were allowed to use 3 motors. We used 2 for the wheels and one for the claw(to pick up the ball). Our robot is easily able to fit under the middle of the ramp.

Below is the greatest run EVER!

Below is one of our failed runs...(It is hard to see, the ball did not roll into the box)

Saturday, April 30, 2016

Arduino Obstacle Avoiding Robot

Recently, I have made an obstacle avoiding arduino robot. This robot drives around the floor and doesn't crash into walls. I used an HC-SR04 ultrasonic sensor for this robot in order to detect the distance from the nearest object. I also used 2 6-volt continuous servo motors in order to move the robot forward. I used an Arduino, breadboard, and some wires. I used a 9 volt battery to power the arduino and a 4 AAA battery pack to power the motors. I made the chassis out of cardboard and made the front wheel from two mineral water caps. I 3d modeled and printed a part to hold the wheel in the front. For science, I had to build circuits. For technology, I had to utilize an arduino, program it, and use the 3D printer. For Engineering, I had to construct the chassis and 3D model the part in Autodesk Inventor. For math, I had to calculate the dimensions of the cardboard chassis and for the 3d modeling. I also had to find the conversion formula to connect the width of the returning ultrasonic signal to distance in cm and inches. 

Robot

video

Sunday, March 13, 2016

Puzzle Cube Reflection

During this project, I glued wooden pieces together to form a 2.25x2.25 inch puzzle cube. The cube has 5 unique pieces that fit together. The total amount of small cubes used was 27. I later used a laser engraver to engrave inspirational quotes on the puzzle cube for each of the six sides. I used autodesk inventor to model each part and then I put the together. I made a document set with each part dimensioned. I collected results from people and observed that STEM students to better on this puzzle cube. A graph can be seen below. 

Graph of average results on the puzzle cube



The separate time of each individual can be found below.



I made a video about me finding parts of the cube and putting them together. It can be found below. 



Below, you can find more pictures of myself in progress of building my project. 
Wood glue that kept my cubes together 
Multiview of one of my parts

Laser Engraver





Thursday, February 11, 2016

Arduino Servo Motor Lock


      After completing one of the projects in the Arduino Starter Kit, I decided to change it up and make it a little bit more secure. Instead of simply doing 3 knocks on a piezo, I decided to make it password protected. I attached 5 pushbuttons to the Arduino digital pins and used digitalRead to read their current state. At first, the password didn't work and I had to look in the internet for answers. I found an easy way to do it and got acquainted with static int in C++. If the person's password is wrong, a piezo will play something similar to a police siren and the RGB Led will alternate blue and red colors. At first I used, 2 normal leds, but later decided to use something more interesting. The RGB led can light up as green, blue, or red and any combination of those colors. If the user gets the password right, the servo in the box will turn and enable the person to open the box. After 5 seconds, it will automatically close. I was previously thinking about using an LCD screen to display text depending if you entered the right combination or not. Later, I found out that it took up too much space on the breadboard and too many of the digital pins. I needed 5 digital pins for the buttons, one for the piezo, 1 for the servo motor, and 3 for my RGB Led. I ran into some difficulties when trying to use PWM on some of my digital pins. I found out that if you use a servo motor and/or piezo, certain digital pins will not be able to use Pulse Width Modulation. Because of that, my jumper cables were a mess and I had to reposition some components on the breadboard. I cut 3 holes in a cardboard box: one for the wire, one through the lid, and one through the box. The plastic part of the servo motor sticks out through two of the holes, potentially blocking the user from accessing the contents of the box. Below you can see some photos and a video of my creation in actions. I am thinking about making a youtube video on how to build this.
Servo motor inside the box
video





My Breadboard

Wednesday, January 27, 2016

GBS Engineering Day

We had 96 student from springman and attea. We first did a lab calculating the bounce height of balls. We later packaged a fragile potato chip in a soft container for safe delivery. The students had a lot of fun and got many maker projects. I enjoyed helping little makers!

Wednesday, January 6, 2016

Personality Quiz Website

   Over the course of the last 2 weeks, Anthony Kang and I made a website. The website is a personality quiz that upon completion tells you which STEM teacher your personality is closer to. We used jQuery, Javascript, HTML, and CSS. The website calculates the percentage of your personality matching a specific person. It took a while to complete because of our lack of programming knowledge. At the end, I learned how to use <form> in HTML and how to use jQuery along with javascript. This project made me understand that even with my limited js knowledge, I can still do something. 

   Originally, it was Anthony Kang's idea. We went to the library over winter break and planned it out. Whenever a user clicks one of the questions, the question disappears, the next one appears, and the answer is recorded. At the end the photo of the person you are more like shows up. The characters used were Mr. Cowhey, Mr. Sinde, and John Cena. Temporary link: tinyurl.com/stempersonality

Tuesday, January 5, 2016

Virtual Reality

     Today I got to experience virtual reality. Some can be very cheap, like the google cardboard. It is about $30. Something better can cost $250 like the oculus rift. VR can be used to treat people with autism and help sports players. I can also help get rid of stage fright for people. A person can practice their speech in front of a virtual audience. Of course, it can also be used for entertainment. Playing games, what I experienced today, is extremely fun, addictive, and realistic. Sensors are used to determine where a person moves his  head. A gyro sensor tracks movements. There is one in every iPhone which makes the use of google cardboard possible. Then the image on screen is adjusted accordingly. Each eye has a different view, just like in real life.

Penny Hockey Project

     I recently finished my Penny Hockey board. The project is relatively easy to make and the materials are very cheap. If I were to do this again, I would make sure that my wood is the exact length and that I line it up well before nail gunning it. Now my wood has space between the connections. It looks ok, but the holes are very obvious and ruin the first impression. I need to work on improving my skills of using tools and making more precise measurements. Some of the tolls that we used are the Miter Saw, Table Saw, Band Saw, Nail Gun, and Cordless Drill. We took safety quizzes for each tool so that we can be safe when operating them. The sandpaper tool curved the wood on my board and made me have holes at the connections.
     For autodesk, we at first made all the parts with the appropriate dimensions. Then we had to constrain all the parts together to form the board. For the document set, we labeled individual parts and dimensioned them. We made a parts list and a title page. It was confusing how to include enough dimensions but not too many for the assembly. I felt that I dimensioned just enough because using mathematics you are able to find any dimensions you need. I was afraid to overdimension. If I were to do this again, I would invest more time in sanding the board, rounding the edges, and maybe painting the wood. 

My Penny Hockey Project