Tuesday, 18 September 2012

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

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