Cutting Crown Molding; Laying Molding Flat On The Miter Table - Craftsman 315.2121O0 Owner's Manual

CUTTING CROWN MOLDING
Your compoundmiter saw does an excellent job of
cutting crown molding. In general, compound miter
saws do a better job of cuffing crown moldingthan
any other tool made.
In order to fit properly,crown molding must be com-
pound m/tared with extreme accuracy.
The two contact surfaces on a piece of crown molding
that fit fiat against the ceiling and the wall of a room
are at angles that, when added together, equal
exactly 90 °. Mcet crown molding has a top rear angle
(the sectionthat fits fiat against the ceiling) of 52° and
a bottom rear angle (the section that fits fiat against
the wall) of 38 °.
52° CEIUNG
W
A
L
L FENCE
• LEFTSIDE,INSIDE CORNER
• RIGHTSIDE,OUTSIDE CORNER
MITER TABLE
O O
LAYING MOLDING
FLAT
ON THE
MITER TABLE
See Figure 32.
To use this method for accurateiy cuttingcrown
moldingfor a 90 ° inside or outside comer, lay the
moldingwith its broad beck surfacefiat on the miter
table and against the fence.
When settingthe beval and miter angles for com-
pound miters, remember that the settingsare interde-
pendent; changing one angle changes the other angle
as well.
Keep in mind that the angles for crownmoldingsare
very precise and difficultto set. Since it is very easy
for these angles to shift,all settingsshouldfirst be
tested on scrap molding.Also mostwalls do not have
angles of exactly 90", therefore, you will need to fine
tune your settings.
CORNER
FENCE
OUTSIDE
CORNER
BOTTOM EDGEAGAINST FENCE :
• RIGHT SIDE,INSIDE CORNER
OUTSIDE CORNER
MITER TABLE
O O
CROWN MOLDING FLATON MITER TABLE
Fig. 32
25