Bosch CM10GD - Saw Operations: Miter Cut Information; Pitch Angle and Crown Molding Cutting Guides

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 Miter Cuts
Pitch angle information – The top section of
the miter scale shows angle settings required
t
o cut roof rafters to the “Pitch Angle”
system. 2/2, 4/12, 6/12, etc., are all pitch
angles. This system is based on using the
English “inches.” A 6/12 pitch angle roof
equals a ratio of 6" “rise” for every 12" “run”
(see Figure 45).
Figure 45. Pitch Angle Cutting – Common Roof Rafters
12
12
12/12
RO
O
F AN
GLE
=
45
°
(S
L
OPE)
RA
F
TER
RISE
RUN
12 RUN
6
6/12
R
O
O
F
A
N
G
LE
=
26.
56°
(S
LOP
E
)
RISE
R
AF
TER
Crown molding information – There are miter
position settings for compound-cutting crown
molding flat on the table. Crown molding with
38° “spring angle” uses the 31.6 setting (with
detent) and crown molding with 45° “spring
angle” uses the 35.3 setting. NOTE: This
cutting method also requires that specific
bevel angles are set – see Cutting Crown
Molding on page 50.
Saw Operations
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