Scroll Saw- Parts, Types and its operation

Scroll Saw is utilized for fine work with wood. This is used in places where the power and speed of an electrical saw are blended with the accuracy of an Exact knife or fine handheld blade. These machines have a slender blade with 400-1800 strokes up and down in a minute. A Scroll Saw not only cuts wood, but it is also used to cut plastic, thin metal, Plexiglas, and some other materials.

Parts of a Scroll Saw

All of these have standard parts, few of them are common to all.

A flat table- Material to be sawed is placed on this table.

Arm- Extension to the table

Tip-links the saw blade

Hole- It’s in the table where the motor below the table is linked to the blade.

Base- has legs and the motor or saw the bottom.

Throat- Distance from the back of the saw to the blade.

For home use, it’s throat is about 16″ and a professional scroll has 12-30.

Principle of operation

The principle of working is identical to a band saw wherein to cut, one has to move to oppose the saw blade, but a primary difference is that in a Scroll Saw, a reciprocating blade is utilized whereas in a band saw, the blade is in a continuous loop.

The internal profiles are easier to cut and drill one hole in the piece on which you are working and then insert the blade of the scroll saw through, and then the blade is mounted on the arm.

Types of Blades

Standard tooth blade-Evenly spaced teeth and same size teeth.

Metal blade- Smaller and closer teeth.

Wood blade-Larger teeth with larger space in between to dust off the sawdust while you are cutting.

Skip-tooth blade-Teeth is spaced or skipped and are widely spaced for cooling.

Different types of cuts using a Scroll Saw.

Exterior Cuts

Trace a line or a pattern on the material that you want to work on, for a standard cut. Lay the wood or any other working material flat on the table. Make sure that you have placed the blade with the right tension on it. Switch on the saw. Bring the blade in contact with the wood. Blades being thin, tend to drift off the pattern or line while cutting. Steer the wood as you do in a car. Adjust wherever needed pushing the wood ahead. Create lines and waves; zigzag patterns angled turns and many more. One can make interior cuts as well.

Interior Cuts

These cuts are made by drilling a small hole in the working material. This should be big enough for the blade of the saw to fit in. Ensure that the drilling of the hole is ideally vertical or very close to it. Remove the hook from the motor and the bottom tip of the blade. Now place it into the wood hole, back into the saw table. Then reattach this to the motor. Ensure there is good tension and then etch the pattern traced, a spiral, a circle, or a maze pattern.

Thus a best Scroll saw makes etching, designing, and fine working on any material easy and convenient.