Adjusting the speed

The speed can be adjusted to suit the workpiece being cut. The variable speed dial (1) is located at the top of the saw for convenient adjustment of the speed.

1.Turn the saw on by lifting the on/off switch (1).

2.Turn the dial in a clockwise direction for a faster speed and in an anti-clockwise direction to reduce the speed.

3.Determine the optimum speed by making a trial cut in a scrap piece of material.

Note. Using the correct speed for

the job increases the life of the saw blade.

Selecting the correct speed

The below table shows the most appropriate blade and speed to be used for different materials and applications.

Scroll saw operation

1.Ensure that the table insert is in place and flush with the table.

2.To start the saw lift up the on/off switch (1).

3.Adjust the speed to suit the workpiece being cut.

4.To begin the cut guide the wood into the moving saw blade, the blade teeth cut only on the down stroke.

5.The saw will not cut wood by itself, you allow the saw to cut wood by guiding the wood into the blade as it moves.

6.The drop foot (8) should always be lowered until it just rests on top of the workpiece to prevent your workpiece from lifting during operation but not so much that the workpiece drags. To lower or raise the drop foot loosen the drop foot locking knob (9) and position the drop foot so it rests on top of the work piece. Retighten the drop foot locking knob.

7.Ensure that you feed the wood into the blade slowly because the teeth of the blade are very small and they can only remove wood when they are on the down stroke.

8.The blade will flex backwards when applying feed pressure. Too much feed pressure will cause blade breakage.

9.Best results are achieved when cutting wood less than 25mm thick.

10.When cutting wood thicker than 25mm, the user must feed the wood into the blade very slowly, increase blade tension and take extra care not to bend or twist the blade while cutting in order to maximise blade life.

11.Teeth on scroll saw blades wear quickly and as a result must be replaced frequently for best cutting results. Scroll saw blades generally stay sharp for 30 minutes to 2 hours of cutting.

12.Once finished push the on/off switch down to turn off the saw and unplug the tool from the power point to prevent unauthorised use.

Blade Teeth

Width

Thickness

Strokes

Material and Application

per Inch

per Minute

 

 

 

 

 

 

 

 

6 - 10

2.8mm

0.5mm

1200–1600

Hard and soft woods from 5mm to 50mm thick

plastics, paper, felt

 

 

 

 

10 - 15

2.8mm

0.5mm

600–1200

Wood, plastics, extremely thin cuts in materials

2.5mm to 13mm thick

 

 

 

 

15 - 18

2.4mm

0.3mm

400–600

Tight radius work in thin materials 2.5mm to 3mm thick.

Wood, veneer, fiber, plastic.

 

 

 

 

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Global Machinery Company LS1620 instruction manual Adjusting the speed, Selecting the correct speed, Scroll saw operation