D.T KS3

D.T KS3

1. Materials

2. Processes

3. Equipment

   • Fretsaw
   • Machine drills
   • Bench Drill
   • Hand Drill
   • G Cramps
   • Sash Clamps
   • Planes
     • Smoothing Plane
     • Jack Plane
   • Try-square
   • Engineer's Square
   • Sliding Bevel
   • Back Saw
   • Coping Saw
   • Hacksaw
   • Centre Square
   • Marking Gauge
   • Mortise Gauge
   • Mortise Chisel
   • Hot Glue Gun
   • Power Hacksaw
   • Hand File
   • Disk Sander

4. Systems

   • Levers
     • Fulcrum
     • Effort
     • Load
     • Class 1
       • See-saw/pliers/crowbar
     • Class 2
       • Nutcrackers/wheelbarrows
     • Class 3
       • Tweezers
     • Mechanical advantage = load ÷ effort
     • Velocity ratio = distance moved by effort ÷ distance moved by load
   • Circuits
     • Electronics
       • Components
         • 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
         • 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
         • Joined Conductor
         • Potentiometer
         • Preset Potentiometer
         • Polarised Capacitor
         • Non-polarised Capacitor
         • Power Supply
         • Crossing conductors
         • Diode
         • NPN Transistor
         • Amplifier
         • Fuse
         • Resonator
         • Primary/Secondary Cell
         • Battery
         • Single pole throw switch
         • Single pole double throw switch
         • Double pole throw switch
         • Push to make Switch
         • Push to break Switch
         • Dry-reed switch
         • Opto Switch
         • Relay
       • Integrated Circuit (IC)
         • Silicon/Chip
           • Very Small
   • Linkages
     • Pivot
     • Fixed Pivot
     • Reverse Motion
     • Parallel Motion
     • Bell Crank
     • Treadle
   • Cams
     • Cams
       • Rise
       • Fall
       • Dwell
       • Pear-shaped
       • Eccentric
       • Drop
   • Gears
     • Spur Gears
     • Gear ratio = number or teeth on driven gear ÷ number of teeth on the driver gear
     • Output speed = input speed ÷ gear ratio
     • Compound Gear Trains
     • Worm Gears
     • Bevel Gears
     • Rack and Pinion
   • Pulleys
     • Belt
     • Driver
     • Driven Pulley
     • Velocity ratio = diameter of the driven pulley ÷ diameter of the driver pulley
     • Output speed = input speed ÷ velocity ratio
     • output torque = input torque × velocity ratio.
   • Motion
     • Rotary Motion
     • Linear Motion
     • Reciprocating Motion
     • Oscillating motion
     • Chain and Sprocket
     • Cam and follower
     • Peg and Slot
     • Crank, link and slider
   • Close Loop
     • Open Loop

5. Design

6. Structures

7. Aeronautics

8. Graphics