October's Projects

This picture is a picture of a piece of the rod cut off from the lathe. We had to be very careful with the rod because the side where the part was cut off was very hot due to friction. We also did cut the rod a small bit and that ended up making the rod smoother.

The picture above is a picture of a woman who works at the acceptance department at Massachusetts Institute of Technology (MIT). She was in a video that says that they only have around 15 minutes to check each application so the best way to fit all important projects done in a blog where all the work is compressed and described    

This picture is rough draft of a service cart we had decided to make to make the tank mobile. However we ran into a few problems such as the height from the ground and the measurements. This led to me critically thinking about all the factors that could come into play when designing the service cart.

My after picture is a picture of the same hold downs, however this time labeled in big letters and in sharpie so no one can miss the items. Now if Mr. G sends someone who has no experience with the equipment to retrieve the hold downs all they have to do is look for the kit labeled “Hold Downs” and save a lot more time which is key in a 40 minute engineering class.

Above it shows two box cutters and a piece of cardboard cut into a slice. One of the cutters was more sharp than the other and we were taught that we had to be careful when cutting cardboard because it will take many passes to cut the cardboard and that will lead to uneven cutting and not aesthetically pleasing.

This picture is the 2-D figure all drawn out to scale which if put together will be an exact replica of the brick. I measured the brick with a ruler and got all of the dimension correct and then started to draw the dimensions on the piece of paper.

This after picture shows the 2-D drawing folded to stand up and put together. I used masking tape to connect the sides together and the top to the sides. I also tried to cut the doors out but it was very difficult and I ran out of time so i had to deal with it. The cube also includes my name on front to make sure that the cube was my work.

The picture above shows my penny battery put together and being measured with a voltmeter and my id in the picture to prove that the batter was mine. As shown in the picture my battery has a measurement of 0.755 volts and I achieved those volts my wetting the cardboard in between and playing around with the ratio of salt to water on the cardboard.

This picture shows the different types of rust. The title of the paper is “Oxidation” and is shows the name and color for a few of very popular metals. Copper turns green, zinc turns black, and iron turns reddish.

This after picture shows the box finally labeled with its contents. This is crucial because whenever someone is in a hurry all they have to do is look for the box labeled with “Voltmeters” instead of looking around the huge room like an idiot and looking very unorganized and very unprofessional in front of people who are expecting efficiency and organization.

This after picture is a picture of my own pennies filed down and finished with sandpaper to get rid of any little pieces of copper left on the penny. The least amount of pennies needed is two pennies, one penny shaved with zinc and another completely left alone covered in copper.

The picture above is a picture of a voltmeter reading 1.4 volts on my penny. In order to read correctly one of the points has to be on one end of the battery and the other on the other side. My penny battery has 3 layers, 2 pennies shaved until showing zinc and one penny all copper at the bottom.

The picture above is a picture of me measuring my penny battery modified to reach 2.4 volts. I added 2 more layers of pennies in order to reach the desired volts because the more layers equals the more volts. I could have reached 2.4 by adding more salt to the cardboard or wetting the cardboard more, however the period ended and i needed to take a picture and the closest I got to was 2.2 volts

The pictures show me reaching 3.2 volts and me lighting up an LED light with the penny battery. I had to do both because I was behind on my work so I had to kill two birds with one stone in order to get back on track and get a full grade for this week. Both 3.2 volts and the LED took 5 shaved pennies and 1 full copper penny.

This after picture displays a piece of the mask given to me compared with the same piece from a complete mask. As you can see the piece that was provided to me is broken and therefore I couldn’t finish the full construction of the mask. However, one solution to this problem was that we could 3-D print the same piece and replace it to fully finish the mask and make it functional.

Above there is a diagram that Mr. G drew up as a lesson to teach us. The picture contains different phases of the next project that we will take on, a flashlight made by us. The phases include attaching a LED (Light Emitting Diode) to the battery, making a circuit, and adding it to a flashlight.

The after picture above displays two wires being soldered together by a soldering iron and metal. I placed the soldering iron below the wire and waited until the wire got hot enough to melt the metal and fuse the two wires together. The picture also includes my ID so that I could prove that it is my work and so that no one can take credit for my work.