Design and Technology Flashcards
Disc Sander Safety
- wear PPE
- Turn on extractor to avoid breathing in toxic dust
- only sand to smooth the edge
- use both hands
- gently move side to side
- ensure area is free of debris
- place timber on left side only
Scroll Saw Safety
- it is a power machine
- cuts curves in tin pieces of wood, plastic and metal
- various blade styles
- up and down motion
- teeth on blade point down
- hold down material to avoid bouncing
- use both hands to guide and provide pressure
Orthographic Drawings
Top
Front Side
provide measurements
make sure it all lines up
Linear Economy
once you’ve used it, it is typically thrown away and it becomes waste
e.g. bottles, coffee cups, textiles
It’s a straight line ———–>
Take, make, use, dispose
Circular Economy
Designed to benefit businesses, society, and the environment. All about finding ways to use resources more efficiently by reusing, repairing or recycling.
how does textiles contribute to the linear economy?
textile products are made, used, and disposed of. a mere 15% of discarded clothing and textiles are collected for reuse, recycling, or downcycling, while the remainder is sent for landfill and incineration.
how can we use the circular economy to reduce textile waste?
Once clothes cannot be used anymore, recycling them into new clothes allows the value of the materials to be captured at different levels.
Algorithms
a set of rules and calculations to conduct an action
- many factors
- considers time and engagement
- shows relevant content
Advantage of Block Coding?
easy to learn, visual, fast
Disadvantage of Block Coding?
Basic, limited capabilities
Variable examples
fails
Basic
shows leds
Input
on button A pressed
Loops
repeat 4 times
do
Variables
fails , pause, seconds
