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Using the Trammel to Cut Circles
The optional circle cutter (trammel) permits the jigsaw to cut circular holes in a workpiece from the minimum and maximum sizes shown in the table below.
| Min | Max | Min | Max |
| Inch | Inch | mm | mm |
Radius | 113/16 | 59 | 46 | 1500 |
Diameter | 35/8 | 118 | 92 | 3000 |
The optional circle cutting trammel attachment mounts to the underside of the optional guide rail base (see page 10). The circle cutting attachment contains the following features:
►►
►► Clamping knob to lock the trammel at the desired radius.
►► Index pointers and trammel points for either right- or left- hand mounting to the jigsaw base.
►► Trammel points for either clockwise or counterclockwise cutting directions.
►► Trammel point pin with
Trammel Point
Pin Storage
Clockwise
Trammel Point
Index
Pointers
Clamping
Knob
Counterclockwise
Trammel Point
Cutting
Indicator
Guide Rail
Base
1.Identify the location of the center of the arc or circle you wish to cut.
2.Drill a 4mm (5/32") hole at the center of the arc or circle.
3.Loosen the clamping knob and extend the tape measure until the index pointers are pointing to the desired radius. The radius is 1/2 the diameter of a circle.
4.Retighten the clamping knob.
5.Insert the trammel point pin through the trammel point of the circle cutter, and into the hole you drilled into the workpiece above.
►► There are 2 trammel points on the circle cutter. One is for clockwise rotation and the other for counterclockwise rotation. Use the trammel point that is directly across from the sawblade when the circle cutter is mounted to the jigsaw.
6.Install the desired sawblade into the saw. If the radius/ diameter of the cut is small, use a scrolling sawblade. For larger diameter circles, the high side set teeth of the FSG blades will probably work best.
7.Install the guide rail base on the saw as described on page 10.
8.If you are cutting a full circle, you will need a starting point for the sawblade that lines up with your circle.
a.Using a pencil and the cutting indicator, trace out a portion of the circle where you will manually begin cutting.
b.Drill a hole on the
c.Use this starting hole to manually begin cutting the
9.Place the jigsaw onto the circle cutter and continue with the cut.
10.Before completing the cut, make sure that both the waste piece and the saved piece are supported.
Underside
of Jigsaw
16 | Carvex PS420 Series |