D.T KS3

D.T KS3

Materials
Processes
Equipment
1. Fretsaw
2. Machine drills
3. Bench Drill
4. Hand Drill
5. G Cramps
6. Sash Clamps
7. Planes
  1. Smoothing Plane
  2. Jack Plane
8. Try-square
9. Engineer's Square
10. Sliding Bevel
11. Back Saw
12. Coping Saw
13. Hacksaw
14. Centre Square
15. Marking Gauge
16. Mortise Gauge
17. Mortise Chisel
18. Hot Glue Gun
19. Power Hacksaw
20. Hand File
21. Disk Sander
Systems
1. Levers
  1. Fulcrum
  2. Effort
  3. Load
  4. Class 1
    1. See-saw/pliers/crowbar
  5. Class 2
    1. Nutcrackers/wheelbarrows
  6. Class 3
    1. Tweezers
  7. Mechanical advantage = load ÷ effort
  8. Velocity ratio = distance moved by effort ÷ distance moved by load
2. Circuits
  1. Electronics
    1. Components
      1. Discrete
        Resistor
        Fixed
        Protecting components
        Dividing Voltage
        controlling a time delay
        Variable
        Variable resistor- Adjusts via script
        Pre-set potentiometers
        Special
        Thermistors
        Light-dependant resistors (LDRs)
        Values
        Ohms
        R=Ohm
        4R7 = 4.7 Ohms
        K=Kilo-Ohm
        1K8 = 1.8 Kilo-Ohms
        Transistor
        Light-emitting Diode (LED)
        Capacitor
      2. Programmable Components
        Microprocessor
        Multi-function
        Enable Computers to work
        Can be used to control many types of electronic systems
        One can control a range of different functions in a car
        Can Malfunction and fail all processes
        Microcontroller/PIC
        Alternative
        Single-purpose microprocessors
        Enable designers to use the same device to control a wide range of situations
        cheaper than a computer control system
        Controlled by an internal clock
        Series with individual functions can control a car
        If one malfunctions, it doesn't affect the others and can be easily replaced
      3. Joined Conductor
      4. Potentiometer
      5. Preset Potentiometer
      6. Polarised Capacitor
      7. Non-polarised Capacitor
      8. Power Supply
      9. Crossing conductors
      10. Diode
      11. NPN Transistor
      12. Amplifier
      13. Fuse
      14. Resonator
      15. Primary/Secondary Cell
      16. Battery
      17. Single pole throw switch
      18. Single pole double throw switch
      19. Double pole throw switch
      20. Push to make Switch
      21. Push to break Switch
      22. Dry-reed switch
      23. Opto Switch
      24. Relay
    2. Integrated Circuit (IC)
      1. Silicon/Chip
        Very Small
3. Linkages
  1. Pivot
  2. Fixed Pivot
  3. Reverse Motion
  4. Parallel Motion
  5. Bell Crank
  6. Treadle
4. Cams
  1. Cams
    1. Rise
    2. Fall
    3. Dwell
    4. Pear-shaped
    5. Eccentric
    6. Drop
5. Gears
  1. Spur Gears
  2. Gear ratio = number or teeth on driven gear ÷ number of teeth on the driver gear
  3. Output speed = input speed ÷ gear ratio
  4. Compound Gear Trains
  5. Worm Gears
  6. Bevel Gears
  7. Rack and Pinion
6. Pulleys
  1. Belt
  2. Driver
  3. Driven Pulley
  4. Velocity ratio = diameter of the driven pulley ÷ diameter of the driver pulley
  5. Output speed = input speed ÷ velocity ratio
  6. output torque = input torque × velocity ratio.
7. Motion
  1. Rotary Motion
  2. Linear Motion
  3. Reciprocating Motion
  4. Oscillating motion
  5. Chain and Sprocket
  6. Cam and follower
  7. Peg and Slot
  8. Crank, link and slider
8. Close Loop
  1. Open Loop
Design
Structures
Aeronautics
Graphics

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	Criado por Student-8 mais de 9 anos atrás