General Tools 880 User Manual
2. BASICS OF CROWN MOLDING
TERMINOLOGY
Interior wall corner
Interior (INT) joint
Exterior wall corner
Exterior (EXT) joint
4. INSERT POSITIONING
For a 45◦spring angle
Insert is not needed.
Markings on the insert
quickly help you to position the insert for the
correct spring angle of
38 or 52 degrees.
Positioning of insert for 38◦cuts.
5. JIG ALIGNMENT
Cutting sequences are simplified by guide marks
embossed on the jig top. All interior (INT) and
exterior (EXT) corner miters for left-side moldings are made on the left side of the blade; cuts
to the right-side moldings are made on the right
side of the saw blade.
TOP markings
for LEFT side
cutting.
B. FABRICATING YOUR
CROWN MOLDING
1. MEASURI
Measure interior (INT) or exterior (EXT) corners.
Divide the angle in half and set the saw blade to
this number.
NG AND LAYOUT
Measuring
the interior
joint angle
Left Inside Right Inside
Crown moldings may be installed
either-side up, however, the
spring angles will be different.
Left outside Right outside
3. CROWN KING PRODUCT OVERVIEW
Positioning of insert for 52◦cuts.
38◦spring angle
Incorrect ceiling angle Correct ceiling angle
52◦spring angle
Detail of left side jig positioning.
TOP markings
for RIGHT side
cutting.
Measuring
the exterior
joint angle.
Set the saw
at ½ of the
measured
angle
The Crown King jig lets you cut perfectly mitered
interior (INT) and exterior (EXT) corner joints—
right out of the box—on 38, 45, or 52 degree
(spring angle) crown moldings. Moldings are cut
the way they look on the wall.
Incorrect wall angle
To check molding angle before cutting, place molding
in jig; the wall face angle should be vertical and the
top (ceiling) angle horizontall. ). If the ceiling angle is
not horizontal, rotate or remove/insert yellow plastic
adapter until angle is correct.
Correct wall angle
Detail of right side jig positioning.
Position the jig and the molding on the miter saw
table with the jig against the saw fence as far
back from the saw blade as needed. Moldings
are hand-held for cutting.
Mark the location of the jig on the fence for future
reference.Then either clamp the jig, set the rail
end stop or hand hold the workpiece fo
r cutting.
Measuring the test cut – (Front view)
Measuring the test cut – (Rear view)
3. MOLDING INSTALLATION
After cutting, test-fit moldings in place.
A CUTTING GUIDE FOR CROWN MOLDINGS
Professionally Cut Crown Molding...
Easily and Precisely
TABLE OF CONTENTS
A. UNDERSTANDING THE PRODUCT
1. BASIC DESCRIPTION
Clamping is optional but not required.
2. BASIC MITRE CUTTING
To easily obtain an accurate miter cut length, first
set your saw at the proper angle for your cut
(right or left) and set the Crown King jig on the
saw table, at the mark you previously made.
Place a piece of scrap molding into the jig and
make a test cut. With the piece still in the jig,
measure from the bottom of the jig to the cut
edge. This is the measurement you will need
to offset your fi
nal cuts.
When making final cuts, extend your molding
(wall length) mark beyond the jig by this same
distance and cut the molding as shown. Repeat
the procedure when making cuts on the opposite
angle.
Set work piece at same measured distance –
(Rear view)
Then make the cut – (Rear view)
It’s as easy as that!
The yellow angle insert can also be used as an
installation guide; hold the insert against the wall
to check 38◦and 45◦angles, or against the ceiling to check 52◦angles.
GENERAL TOOLS & INSTRUMENTS
80 White Street New York, NY 10013-3567
PHONE (212) 431-6100 FAX (212) 431-6499
TOLL FREE (800) 697-8665
www.generaltools.com
880 User’s Manual 03/01/2013
2. BASICS OF CROWN MOLDING
3. CROWN KING PRODUCT OVERVIEW
4. INSERT POSITIONING
5. JIG ALIGNMENT
B. FABRICATING YOUR CROWN MOLDING
1. MEASURING AND LAYOUT
2. BASIC MITER CUTTING
3. MOLDING INSTALLATION
A. UNDERSTANDING THE PRODUCT
1. BASIC DESCRIPTION
A
B
The jig consists of two pieces:
A. the gray jig molded at a 45◦spring angle
B. a versatile and reconfigurable yellow insert
for 38◦and 52◦spring angles.
©2013 GENERAL TOOLS & INSTRUMENTS
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