Tuesday, 18 September 2012

Evaluation

Did you solve the problem?

I solved the problem I have successfully constructed a clock.

What do you think of the overall design? What changes would you make?

I think my overall design was pretty good and if I could, I would change the smudged paint on my clock and make it prettier.

Was your project well planned and organised? Did you allow enough time to complete all of the steps?

I think my time management was pretty well, apart from the start when I missed 2 lessons of filing my timber but I fixed that problem up by reducing the amount of timber I had tto file.

Did you select appropiate materials? Would you change materials next time?

I think I selected appropiate materials and no, I wouldn't change the materials next time.

What manufactering problems did you encounter?

I encountered problems such as the size of the layers not matching with the timber and other layers, filing the timber and painting the plastic. I solved the layers not matching problem by using baking paper to trace over the layer and then transfer it onto the cardboard, the filing timber problem by reducing the amount of timber I have to file and the painting problem by being more careful and using a smaller paint brush.

What are the views of other people regarding your design? What changes have they suggested?

The view of other people is that my clock is really cute and they suggest I could've filed the timber a bit more.

I used the following things in my clock:

  • Timber
  • Cardboard
  • Thermoplastics
  • Paint
  • Glue

My design and my completed project:



P.S. Sorry about the picture of the completed project, I don't know how to switch it to horizontal

Sustainability

I have used the following materials in my project:

  • Timber
  • Cardboard
  • Paint
  • Thermoplastic
  • Glue

Plastics are very bad for the environment because some people throw things such as plastic bottles out when they can be reused, this causes a huge impact on our environment because people burry them underground in the hopes of them decomposing by themselves but they actually take over 50 years to do so! Imagine what our planet would be like in 50 years time, plastic would be EVERYWHERE. Another important reason is because some of the plastic bags we throw out get carried away by the wind and into the ocean. Sme animls such as turtles will mistake them for jellyfish and they will actually eat them! Therefore the bag would block their airway, causing them to suffocate to death.

Steps My Family and I can take to Reduce Plastic Consumption and Protect the Environment:

  • Not littering plastic
  • Reusing plastic and other materials
  • Bringing lunch to school using a container
  • Buyinge reusable water bottle instead of plastic

Painted Clock

During the weekened, I painted my clock so it was ready for putting the mechanisms in this week. I encountered some troubles such as paint smudging and not knowing where the head and tummy are but I overcame all these problems. But some of the parts of my clock still has a bit of black thing smudged onto it.


P.S. I painted around the clock so when Mr Andrews cut it out, the border wouldn't be see-through
 
 

Thirteenth Lesson


Today I got my clock vacuum formed!!!!!!!!!!!! When the plastic was heating up, I was panicing because I was really scared that my layers were going to get stuck but it turned out better than I thought. Only one eye got stuck in there, I wasn't really surprised because I had a lot of trouble glueing it down so it was a bit unstable but I'm very happy that the other one didn't fall off :)

Night Before Thirteenth Lesson

Throughout the last few days at home, I have finished cutting my layers and have also glued them on. For that I really have to give credit to my dad because he supplied iron filers, stanley knife, sandpaper and even a hot glue gun. This enabled me to cut out my layers and glue them on without stressing that I have to glue it on really quickly at the start of the vacuum forming lesson. A difficulty I encountered while cutting out my layers was that the shape of garfield's face on my mold was different to the actual picture so I had difficulty when I was glueing the eyes on. But in the end I solved the problem by drawing garfield's face onto the mold and then using baking paper to trace out the eyes and finally I traced around the eyes, onto cardboard. Another thing that I had to watch out was that the layers cannot be bigger than the layer and timber beneath it, this is because when the thermoplastic sets, you cannot pull your clock out entirely because the layer jutting out will be stuck. The last problem was glueing the eyes. The eyes were too small to use a dab of glue because the eyes are smaller than the dab so after it dries, there will just be glue jutting out from under the eyes. What I did was I quickly put someone glue on a piece of cardboard and then using a toothpick, I took a tiny aount of glue and stuck the eyes on. The process was very hard and time-consuming but it was better than having glue sticking out from the bottom.

I hope my clock tomorrow won't encouter the 'layer stuck' problem.

P.S. I'm sorry about the picture of garfield, I don't know how to turn it horizontally.




Twelfth Lesson

Today was the last lesson before the vacuum forming lesson, I tried to finish as much layers as I can so I didn't have to do it for homework and also because we have 3 tests on Friday this week so I have to try and make time to study. During the lesson today, I made garfield's arm, hand and the first layer of his eyes. I am pretty happy with my progress, I only have 2 layers of his eyes, 1 layer of his leg and the stars and stuff on his hat. Since we are vacuum forming next lesson I think it will be useful if I researched about it now.

Vacuum forming:

Vacuum forming is the process of heating thermoplastics and then securing it around a mold by applying vacuum pressure.

  1. Sheet of plastic is clamped into place above the mold
  2. Plastic is heated until pliable (soft)
  3. Plastic is pulled down onto the mold
  4. Plastic is pulled down around the mold by vacuum pressure
Examples of vacuum forming:

  • Packaging
  • Acrylic bowls
  • Shop fronts

Monday, 17 September 2012

Eleventh Lesson

Last lesson for filing today, thank God I didn't have to file right to the edge of the picture otherwise I am certain I wouldn't be in the position I am in now. Today I just have to perfect the legs, other than that I only have to check the other parts to make sure that they are in the correct shape. We have camp next week so that means we will miss 2 lessons so Mr Andrews told us that our layers have to be prepared and ready the second lesson on the week after camp.

Have to work extra hard now!