Lesson Notes By Weeks and Term v4 - SHS 3
ENGINEERING MATERIALS, TOOLS AND MACHINES
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ENGINEERING MATERIALS, TOOLS AND MACHINES
Download the Lessonotes Mobile Ghana app for faster lesson access on Android and iPhone.
Subject: Applied Technology
Class: SHS 3
Term: 1st Term
Week: 10
Grade code: 3.2.1.LI.5
Strand code: 2
Sub-strand code: 1
Content standard code: 3.2.1.CS.1
Indicator code: 3.2.1.LI.5
Theme: METAL TECHNOLOGY
Subtheme: ENGINEERING MATERIALS, TOOLS AND MACHINES
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Welcome, future engineers and innovators! Today, we are moving beyond traditional tools like lathes and welding machines to explore a revolutionary technology called 3D Printing, also known as Additive Manufacturing. Imagine being able to design a spare part for your mother's blender, a custom phone case, or even a model of a new building, and then bringing it to life, layer by layer, right in your workshop. This technology is changing how we create things, from small businesses in Accra making custom jewellery to large factories prototyping car parts. Understanding 3D printing will give you a powerful skill for problem-solving and entrepreneurship in modern Ghana.
This section breaks down everything you need to know about 3D printing. A. What is 3D Printing?
3D Printing, or Additive Manufacturing, is the process of creating a three-dimensional object from a digital file.
Think of it this way: Traditional (Subtractive) Manufacturing: You start with a big block of wood or metal and cut, drill, and carve away material until you get your desired shape. You are *subtracting* material. 3D Printing (Additive) Manufacturing: You start with nothing and build the object from the ground up, one thin layer at a time. You are *adding* material.
The most common type of 3D printing for schools and small businesses is called Fused Deposition Modeling (FDM) or Fused Filament Fabrication (FFF). This is the type we will focus on. B. How an FDM 3D Printer Works