Craftsman 315.212120 Owner's Manual page 25

cu'rI'ING CROWN MOLDING
Your compound miter sew does an excellentjob of
cuttingcrown molding.In general, compound miter
sews do a betterjob of cutting crown moldingthan
any other tool made.
In order to fit properly,crown molding must be com-
pound mitered with extreme accuracy.
The two contact surfaceson a piece of crown molding
that fit fiat against the ceilingand the wall of a room
are at angles that, when added together, equal
exactly 90°. Most crown moldinghas a top rear angle
(the sectionthat fits flat against the ceiling)of 52 ° and
a bottomrear angle (the sectionthat fits fiat against
the wall) of 38 °.
52o CEILING
W
A
L
L FENCE
TOPEDGE AGAINST FENCE:
• LEFTSIDE,iNSIDE CORNER
• RIGHT SIDE,OUTSIOE CORNER
MITER TABLE
O O
LAYING MOLDING FLAT ON THE
MITER TABLE
See Figure32.
To use this methodfor accurately cutting crown
moldingfor a 90 ° inside or outside corner, laythe
molding with its broad back surface fiat on the miter
table and againstthe fence.
When settingthe bevel and miter angles for Com-
poundmiters, remember that the seffings are interde-
pendent;changing one angle Changesthe other angle
as well.
Keep in mind that the angles for crown moldings are
very precisea_nd difficultto set. Since it is very easy
for these angles to shift, all settingsshould firstbe
tested on scrap molding.Also most walls do not have
angles of exactly 90 °, therefore, you will need to fine
tune your settings.
CORNER
OUTSIDE
FENCE CORNER
BoI"roMEDGE AGAINST FENCE:
• RIGHTSIDE,INSIDE CORNER
• LEFTSIDE,OUTSIDE CORNER
MITER TABLE
O O
CROWN MOI.D_IGFLAT ONMITER TABLE
Fig. 32
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