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Manufacturing and workshop practice
Marking out
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Created by
Nomagugu Mlilwana
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Cards (10)
Surface
used
with
a mark
out
lines
for
reference
surface
Vernier
height
gauge
is
used
parallel
with
the
height
,
like
a
vertical vernier caliper
Jacks
and
wedges
are
used
to
prevent
slipping
on
uneven
surfaces
Vee
blocks
are
for
holding circular workpieces
during
machining
Engineers' squares
are
used
for
setting
square
edges
and
surfaces
Combination
set
square
and
protractor head
are
used
for
marking
out
angles
Square head
is
used
for
marking
out
lines
at
right angles
to
each
other
Datum lines
are
used
as
a
guide
for
machining workpieces
Datum
point
is
the
point
from
which
all
measurements
are
taken
,
establishing
a
reference
for
work
Datum
(
edge
),
datum
(
centre
)
,
and
datum
(
centre
line
)
are
types
of
datums
used
in
engineering
drawings