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90° V Notches
The
90
degree
V
notch
is
not
as
difficult
as
you
think
it
would
be.
The
minimum
size
of
the
V
notch
would
be
according
to
the
illustration
at
center
right.
If
extra
clearance
is
desired
then
ten
or
fifteen
thousandths
can
be
added
to
the
D2
dimension.
Remember
whatever
you
add
to
the
D2
dimension
half
of
it
needs
to
be
added
to
the
D3
dimension.
The
notch
is
located
by
placing
the
V
in
the
middle
of
the
bend
deduction
mold
lines,
D1
(which
is
where
the
brake
punch
is
located
for
forming).
The
angle
between the V is 90 degrees.
D1 = Length - (B.D)/2
D2 = FLANGE - B.D. + Flange
D3 = D2 ÷ 2
The 90 degree V-Notch with
relief slot. The D2 and D3
depth dimensions are figured
the same way.