Hour long revision recap Flashcards
What plastic is used in 3d printing
PLA
What makes PLA plastic different from normal plastics
Its a biopolymer, and is biodegradable
What does plasticity mean
How easily a plastic can be bent, or changed shape, without cracking or breaking
What is a digital vernier calliper
The very accurate measuring thing
What is the very accurate measuring thing
A digital vernier calliper
What is a coping saw used to cut
woods or plastics, especially to cut bends
What is a tenon saw used for
Cutting straight cuts in wood
What is a tri-square
Used to draw 90 degree angle
What is used to draw a 90 degree angle
Tri-square
What is the saw to cut straight cuts in wood
Tenon saw
What is the saw to cut curved cuts in wood or plastic
coping saw
What is a plain head or slotted scredriver
Flat, one line screwdriver
What is a flat, single line screwdriver
Plain head screwdriver. Or slotted scredriver
What is a pozidriv head screwdriver
Cross roads
What is a mallet
Used to hit chisels
What is a marking gauge
Used to score parallel lines
What is used to score parallel lines
A marking gauge
What is a rasp
A very course file
What is the name of a very course file
A rasp
What is a hacksaw used for
To cut through metals
What is the real name for sandpaper
Abrasive paper
What is used to mark metal
Scriber
what is a ball pein hammer
Hammer used to hammer metals, e.g to change its shape
What are the three types of file
Flat file
Round file
Three square file
Which file has a triangular cross section
Three square file
What is a centre punch
Used to leave an indentation on metal, so a drill will not slip
What is used to hit a centre punch
A ball pein hammer
What is used to leave an indentation on metal so drills wont slip
A centre punch
What are tin snips
They are “pliers” used to cut thin sheet metal
Why are tin snips better than a hacksaw
They leave a cleaner finish
What is used to cut thin sheet metal
Tin snips
What are the 3 types of permanent joins in metal
Soldering
Brazing
Welding
What is soldering
Melting a low melting point metal (solder), around a joint
What is brazing
Similar to soldering, but using brazing rods, which melt at 800 degrees C
What metal is used in brazing, and what is the melting point
Brazing rods, melts at 800 degrees C
What is welding
Melting a strong filler metal, to join two pieces of metal
What are nuts
The thing that screws on to bolt (smaller)
What are bolts
The rod with a thread
What is used to stop nuts shaking loose
Spring washers, keeps tension on the nut
What are nylock nuts
Have a blue nylon insert, which the bolt cuts a thread into, stoping shaking loose
What are the nuts used on aeroplanes
nylock nuts
What is managed forestry
Planting trees as you cut them down
What does FSC stand for
forestry stewardship council
Why be sustainable?
People are more inclined to purchase sustainable products
Governments can pass laws, giving an environmental standard for products
What are plastics made from
Oil
What are the 6 rs
reduce
reuse
recycle
rethink
repair
refuse
