RIDGID R4121 manual Laying Molding Flat on the Miter Table, Ceiling, Inside Corner Fence

Page 31

OPERATION

CUTTING CROWN MOLDING

The compound miter saw does an excellent job of cutting crown molding. In general, compound miter saws do a better job of cutting crown molding than any other tool made.

In order to fit properly, crown molding must be compound mitered with extreme accuracy.

The two contact surfaces on a piece of crown molding that fit flat against the ceiling and the wall of a room are at angles that, when added together, equal exactly 90°. Most crown molding has a top rear angle (the section that fits flat against the ceiling) of 52° and a bottom rear angle (the section that fits flat against the wall) of 38°.

LAYING MOLDING FLAT ON THE MITER TABLE

See Figure 38.

To use this method for accurately cutting crown molding for a 90° inside or outside corner, lay the molding with its broad back surface flat on the miter table and against the fence.

When setting the bevel and miter angles for compound miters, remember that the settings are interdependent; changing one angle changes the other angle as well.

Keep in mind that the angles for crown molding are very precise and difficult to set. Since it is very easy for these angles to shift, all settings should first be tested on scrap molding. Also most walls do not have angles of exactly 90°; therefore, you will need to fine tune your settings.

 

52°

CEILING

 

 

38°

 

 

W

 

 

A

 

 

L

 

 

L

 

FENCE

TOP EDGE AGAINST FENCE =

LEFT SIDE, INSIDE CORNER

RIGHT SIDE, OUTSIDE CORNER

MITER TABLE

When cutting crown molding by this method, the bevel angle should be set at 33.85°. The miter angle should be set at 31.6° either right or left, depending on the desired cut for the application. See the chart below for correct angle settings and correct positioning of crown molding on miter table.

The settings in the chart below can be used for cutting All Standard (U.S.) crown molding with 52° and 38° angles. The crown molding is placed flat on the miter table using the compound features of your miter saw.

Bevel

 

 

 

 

Angle

 

 

 

Type of Cut

Setting

 

 

 

 

 

 

 

 

 

 

 

Left side, inside corner

33.85°

 

1.

Top edge of molding against fence

 

 

2. Miter table set right 31.62°

 

 

3.

Save left end of cut

 

 

 

 

 

 

 

Right side, inside corner

33.85°

 

1.

Bottom edge of molding against fence

 

 

2. Miter table set left 31.62°

 

 

3.

Save left end of cut

 

 

 

 

 

 

 

Left side, outside corner

33.85°

 

1.

Bottom edge of molding against fence

 

 

2. Miter table set left 31.62°

 

 

3.

Save right end of cut

 

 

 

 

 

 

 

Right side, outside corner

33.85°

 

1.

Top edge of molding against fence

 

 

2. Miter table set right 31.62°

 

 

3.

Save right end of cut

 

 

 

 

 

 

 

 

 

 

INSIDE

CORNER

FENCE

OUTSIDE CORNER

 

BOTTOM EDGE AGAINST FENCE =

RIGHT SIDE, INSIDE CORNER

LEFT SIDE, OUTSIDE CORNER

MITER TABLE

CROWN MOLDING FLAT ON MITER TABLE

Fig. 38

 

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Contents OPERATOR’S Manual Introduction Table of ContentsRead ALL Instructions General Safety Rules Blade Coasts After Being Turned OFF  Before Making a CUT, be Sure ALL ADJUST- Ments are Secure Specific Safety RulesSpecific Safety Rules Symbol Name DESIGNATION/EXPLANATION SymbolsSymbol Signal Meaning ServiceElectrical Connection Cord Length Wire Size A.W.GElectrical Double InsulationGlossary of Terms Scale FeaturesProduct Specifications MiterBlade Wrench Storage Know Your Compound Miter SAW12 IN. Blade AMP MotorSliding Miter Fences Switch TriggerREPEAT-A-CUT SELF-RETRACTING Lower Blade GuardCombination WRENCH, 12 mm Tools NeededPhillips Screwdriver Combination Square Framing Square HEX KEY, 1/16 Installed on ToolLoose Parts Blade Washer Bolt Work Clamp Dust BAG HEX KEYTrace Holes AssemblyUnpacking Mounting HolesDust BAG Installing the Work ClampTo install the work clamp Dust GuideBlade Laser Guide Loosen Tighten Installing the BladeTighten Securely To Prevent Guard Movement BladeAligning the Laser Guide Line Cutting a Slot in the Zero Clearance Throat PlateBroken Line Miter Lock Lever Lift to Unlock Push Down to Lock Adjusting the Miter Lock LeverTo adjust Squaring the SAW Blade to the FenceView of Blade Square with Fence Push Back To Lock Bevel Adjusting the Bevel Lock LeverAdjusting the Bevel Pivot Travel Pivot AdjustmentCorrect View of Blade Squaring the Blade to the Miter TableSee Figures 24 Blade Bevel Lock LeverApplications OperationCutting with Your Compound Miter SAW See Figures 28 To bypass preset index pointsTo Miter CUT / Cross CUT To align with miter scaleBevel Scale Stop PIN Bevel CUT Clamp To Bevel CUTSee Figures 30 Bevel LockCompound Miter CUT To Compound Miter CUTLong Workpiece Supporting Long WorkpiecesClamping Wide Workpieces 45 x 45 Compound Miter CUTTo attach the auxiliary fence to the saw Making AN Auxiliary FenceAuxiliary Fence Cutting Compound Miters COMPOUND-ANGLE Settings for Popular Structures38˚/52˚ 45˚/45˚ Cutting Crown Molding38˚ / 52˚ 45˚/45˚ Angle Miter / Bevel MITER/BEVELCeiling Laying Molding Flat on the Miter TableInside Corner Fence Making a Crown Molding JIG Using a Crown Molding JIGCrown Molding JIG Right Cutting Warped MaterialSee Figures 40 WrongGeneral Maintenance AdjustmentsMaintenance To Adjust the Laser GuideProceed as follows when replacement is required Brush ReplacementChanging the Batteries Checking Motor Belt Tension and Replacing the Belt AccessoriesHOW to Obtain Service What is not Covered WarrantyDAY Satisfaction Guarantee Policy What is Covered Under the 3 Year Limited Service WarrantyModel No R4121 Serial No Customer Service Information

R4121 specifications

The RIDGID R4121 is a powerful and versatile table saw that has made a significant impact in the woodworking and construction industries. This innovative tool is designed to meet the needs of both professional contractors and DIY enthusiasts, offering a blend of performance, precision, and portability.

One of the standout features of the R4121 is its robust 15-amp motor, which provides ample power to handle a wide range of cutting tasks. This motor delivers a no-load speed of 5,000 RPM, allowing users to rip through hardwoods, softwoods, and composite materials with ease. The saw's 10-inch blade gives users the ability to make clean, straight cuts, while the adjustable blade height and angle settings enable bevel cuts and varied depths for more complex woodworking projects.

Portability is a key characteristic of the RIDGID R4121. With its compact design and lightweight construction, it can be easily transported to job sites or moved around the workshop. The saw features a sturdy folding stand that can be set up quickly, providing stability while saving valuable space when not in use. This makes it an ideal choice for those who need a dependable table saw that doesn’t sacrifice performance for portability.

In terms of safety, the R4121 is equipped with an array of features designed to protect users during operation. It includes a blade guard for added protection, an anti-kickback pawl for preventing kickbacks, and an emergency stop switch for quick shutdown in case of an unexpected emergency. These safety features enhance user confidence, making it a smart choice for both novice and experienced woodworkers.

The Ridgid R4121 also incorporates advanced technologies to enhance usability and precision. The rack and pinion fence system ensures accurate and consistent cuts, allowing users to make easy adjustments for various workpieces. Additionally, the miter gauge included with the saw provides added versatility for cross-cutting and angled cuts, making it suitable for a diverse array of projects.

Overall, the RIDGID R4121 is a well-rounded table saw that excels in performance, safety, and convenience. Whether you’re tackling home improvement tasks or working on larger construction projects, this tool is designed to deliver reliability and professional-grade results, making it a valuable addition to any workshop. With its combination of power, portability, and precision, the R4121 is poised to become a favorite among users who demand quality and performance in their woodworking tools.
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