by peter mentha - south west institute of tafe 1 mark out materials
TRANSCRIPT
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By Peter Mentha - South West Institute of TAFE
1
Mark Out Materials
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105-1/1 2
Plan and sequence Task
• Plan– How to go about the task
• Sequence task– Organise tasks to be in logical order
• Resources and materials– Get the most out of resources and material
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106-1/1 3
Necessary plumbers skills
Plumbers need to be able to:
• Read plans
• Calculate dimensions
• Transfer dimensions to practical work
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107-109-1/1 4
Drawing development methods
Methods include:
• Parallel line development
• Radial line development
• Triangulation
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107-1/3 5
Parallel line development
• Used to develop cylinders and boxes
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107-2/3 6
Parallel line development
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107-3/3 7
Parallel line development
• Cylinder development
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108-1/3 8
Radial line development
• Used to develop objects such as cones
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108-2/3 9
Radial line development
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108-3/3 10
Radial line development
• Cone development
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109-1/2 11
Triangulation
• Used to develop objects such as pyramids or transition from square to round
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109-2/2 12
Triangulation
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109-3/3 13
Triangulation
• Transition development
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14
Development methods
• Parallel Line Development
• Radial Line Development
• Triangulation
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15
Drawing Equipment
• You will require:
– Pencils (suggested: 2H construction, HB lining-in)– Compass– Ruler– Eraser– A3 paper– Masking tape or drawing clips– Drawing board with T square and set squares or
drawing machine
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16
Development Tasks1 Right rectangular prism
2 Cylindrical prism
3 Cone 4 Square pyramid
5 Equal size right angle pipe branch
6 Unequal size right angle pipe branch
7 Right angle bend in square duct
8 Horizontal cut-off cone
9 Cylinder cut at 45 degrees
10 Square to round transition
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Task 1 Right rectangular prism 17
DevelopmentPLAN
SIDE ELEVATIONFRONT ELEVATION
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Task 2: Cylindrical prism 18
ELEVATION
PLAN
Development
1 2 3 4 5 6 7 8 9 10 11 12 1
1
2
3 45
6
7
8
91011
12
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Task 3: Cone 19
31 2
4
5
6
7
8
9
10
11
12
1
ELEVATION
PLAN
1
2
3 45
6
7
8
91011
12
Development
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Task 4: Square pyramid 20
PLAN
ELEVATION
Development
True length
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Task 5: Equal size right angle pipe branch
21
1
2
3 45
6
7
8
91011
12
1 2 3 4 5 6 7 8 9 10 11 12 1
A
BA
BPLAN
ELEVATION
Development
Development
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Task 6: Unequal size right angle pipe branch
22
a g
b f
c e
l a
A
BA
BPLAN
ELEVATION
1
2
34
5
6
7
8
910
11
12
1 2 3 4 5 6 7 8 9 10 11 12 1
d
l hk i
j
j d
al b
k c
i e
h fg
b c d e f g h i j ka
Development
Development
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Task 7: Right angle bend in square duct
23
5 mm Groove seam
A
B
5 mm Laps
B
A
Development
DevelopmentPLAN
ELEVATION
½ ½
7 ½ mm 7 ½ mm
5 mm
5 mm
5 mm
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Task 8: Horizontal cut-off cone 24
3
1 2
4
5
6
7
8
9
10
11
12
1
Development
PLAN
ELEVATION
1
2
34
5
6
7
8
910
11
12
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Task 9: Cylinder cut at 45 degrees
25
a
b
cd
e
f
g
h
ij
k
l
abl
ck
dj
ei
fhg
a b c d e f g h I j k l a
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Task 10a: Square to round transition
26
PLAN
ELEVATION
1
2
3 45
6
7
12
1110
a b
d c
e
c bd e a
1, 2 12, 3 11, 4 10, 5 9, 6 8, 7
9
8
Length and colours of lines we need for development
a-2, a-3, b-5, b-6, c-8, c-9, d-11, d-12
a-1, a-4, b-4, b-7, c-7, c-10, d-10, d-1
1-2, 2-3, 3-4, 4-5, 5-6, 6-7, 7-8, 8-9, 9-10, 10-11, 11-12, 12-1
a-b, b-c, c-d, d-a
e-1
d-e
True lengths
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Task 10b: Square to round transition
27
1
12
11
10
9
87 6 5
43
2
1
e
d
c
b
a
ePLAN
ELEVATION
1
2
3 45
6
7
12
1110
a b
d c
e
c bd e a
1, 2 12, 3 11, 4 10, 5 9, 6 8, 7
9
8
True lengths
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JUST ONE MORE CLICK
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The END
Plumbing Department of South West Institute of TAFEPlumbing Department of South West Institute of TAFE