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PD > 3.2 marking out techniques > Flashcards

3.2 marking out techniques Flashcards

1
Q

specialist marking tools

paper and wood

A

pencil

mortise gauge- mortise and tenon joint

marking gauge - line parallel to an edge

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2
Q

specialist marking tools

polymers

A

craft knife- polypropylene

scriber- show bend or fold line

chinagraph pencil - draw a bend line on acrylic

drywipe marker- draw a bend line on acrylic

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3
Q

specialist marking tools

metal

A

scrribber

center punch- position of a hole

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4
Q

measuring tools

A

odd leg callipers

internal callipers

external callipers

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5
Q

odd leg calllipers

A

line parallel to edge

metals
sheet polymers

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6
Q

internal callipers

A

distance between two opposite sides

channelor hole

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7
Q

external callipers

A

external distance such as thickness, external diameter

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8
Q

square

A

set square

engineers square

mitre square

stry square

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9
Q

set square

A

papers
boards

lines 
40degrees
30
60
90
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10
Q

try square

A

wood
manufactured board

90degrees from edge

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11
Q

mitre square

A

wood
manufactured board

lines 45 degrees
mitre joints

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12
Q

engineers square

A

metal
90degrees
from edge

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13
Q

micro meter

A

diameters
external thicknesses

manual or digital

+- 0.02mm

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14
Q

vernier callipers

A

depths
external or internal measurements

digital

+- 0.001mm

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15
Q

densitometer

A

used to determine the degree of darkness optical density

digital reading

printing inks for papers and boards

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16
Q

dividers

A

distance between two pints

also circles on sheet wood
metal
polymer

17
Q

jigs

A

speeding up the marking and machining processes

holds the work, guides the tool

drilling jig- guide a drilll into the correct position on the material without the need for marking

18
Q

fixture

A

Holds work in given position while manufacturing process takes place

19
Q

go/ no go gauges

A

speed up the proccess of finding dimensionally inaccurate products in a volme production

made with maximum and minimum allowance/ allowable dimension

the product is placed into the gauge, if it is an acceptable size it goes forward, if not it is rejected

PD (9 decks)

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