Cutting Base Molding

Base moldings and many other moldings can be cut on a compound miter saw. The setup of the saw depends on molding characteristics and application. Perform practice cuts on scrap material to achieve best results:

1.Always make sure moldings rest firmly against fence and table. Use hold-down, crown molding vise or C-clamps, whenever possible, and place tape on the area being clamped to avoid marks.

2.Reduce splintering by taping the cut area prior to making the cut. Mark the cut line directly on the tape.

3.Splintering typically happens due to an incorrect blade application and thinness of the material.

Note: Always perform a dry run cut so you can determine if the operation being attempted is possible before power is applied to the saw.

Crown Molding

Your compound miter saw is suited for the difficult task of cutting crown molding. To fit properly, crown molding must be compound-mitered with extreme accuracy. The two surfaces on a piece of crown molding that fit flat against the ceiling and wall 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°.

In order to accurately cut crown molding for a 90° inside or outside corner, lay the molding with its broad back surface flat on the saw table.

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

Bevel/Miter Settings

Settings for standard crown molding lying flat on compound miter saw table.

Note: The chart below references a compound cut for crown molding only when the angle between the walls equals 90°.

 

 

Bevel

Miter

 

 

Type of Cut

Key

Setting

Setting

Procedure

 

 

 

 

 

 

 

 

 

 

 

 

Inside corner – Left

IL

33.9°

31.6°

1.

Position top of molding against fence.

Side

 

 

Right

2.

Miter table set at RIGHT 31.6°.

 

 

 

 

3.

LEFT side is finished piece.

 

 

 

 

 

 

Inside corner –

IR

33.9°

31.6° Left

1.

Position bottom of molding against fence.

Right Side

 

 

 

2.

Miter table set at LEFT 31.6°.

 

 

 

 

3.

LEFT side is finished piece.

 

 

 

 

 

 

Outside corner –

OL

33.9°

31.6° Left

1.

Position bottom of molding against fence.

Left Side

 

 

 

2.

Miter table set at LEFT 31.6°.

 

 

 

 

3.

RIGHT side is finished piece.

 

 

 

 

 

 

Outside corner –

OR

33.9°

31.6°

1.

Position top of molding against fence.

Right Side

 

 

Right

2.

Miter table set at RIGHT 31.6°.

 

 

 

 

3.

RIGHT side is finished piece

 

 

 

 

 

 

27

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Jet Tools JMS-12SCMS manual Cutting Base Molding, Crown Molding, Bevel/Miter Settings
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JMS-12SCMS specifications

The Jet Tools JMS-12SCMS is a standout in the world of sliding compound miter saws, designed specifically for professionals and serious hobbyists alike. This sophisticated tool combines power, precision, and versatility, making it an essential addition to any workshop.

At the heart of the JMS-12SCMS is its robust motor, which delivers an impressive 15 amps of power. This strength allows it to handle a wide variety of materials, from hardwoods to softer composites, making it ideal for intricate cuts and heavy-duty applications. With a maximum cutting capacity of 12 inches, the JMS-12SCMS can effortlessly slice through larger workpieces with ease, providing the kind of versatility that woodworkers crave.

One of the primary features of the jet saw is its innovative sliding mechanism. This sliding arm design allows for expanded cutting capacity, so users can achieve precise crosscuts and bevels without the need for additional tools. The smooth glide feature ensures that the saw moves effortlessly along its track, significantly reducing friction and wear.

The JMS-12SCMS also boasts a dual bevel capability, allowing for bevel cuts up to 45 degrees left and right. This feature is particularly useful for complex projects that require intricate angles, giving users the flexibility to make precise adjustments without having to flip the workpiece. Additionally, the miter angle can be adjusted to a range of 60 degrees to the right and 52 degrees to the left, providing a comprehensive cutting range for any project.

For enhanced accuracy, this tool includes an easy-to-read digital display for miter and bevel angles, allowing users to set their cuts with confidence. The built-in laser guide further aids in precision, ensuring that every cut is exactly where it's needed.

Safety is always a priority, and the JMS-12SCMS incorporates several features to keep users protected. The saw’s blade guard effectively shields users from accidental contact with the blade, while the electric brake stops the blade quickly after the trigger is released, minimizing the risk of injury.

In conclusion, the Jet Tools JMS-12SCMS is an exceptional tool that combines robust power, innovative features, and a focus on safety. Its advanced technologies and user-friendly design make it a top choice for those seeking reliability and precision in their woodworking projects. Whether you're a professional contractor or a dedicated DIY enthusiast, the JMS-12SCMS will undoubtedly exceed your expectations.
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