Silverline Dovetail Jig 300mm - Manual (Page 7)

6
GB
6. Insert the vertical piece of wood from below into the front of the jig.
The wood should pass behind the front clamp assembly, and be in
contact with the vertical edge of the frame
7. Position the left side of the wood against the left-hand side Vertical
Stop Bar (8)
8. As per the horizontal clamp adjust the clamp so that the wood can be
inserted and secured simply by operating the clamping lever
9. Align the vertical wood so the height is parallel with the horizontal
wood as shown in Fig B
10.Move the vertical clamping lever to the down position to lock the
wood in place
Adjusting of the template position
To adjust the position of the Template (7) to allow for correct positioning
loosen the Template Position Knobs (3) and adjust the template position to
suit the thickness of the wood making sure the template is even on both
sides. The tips of the template should be approximately 2.5mm back from
the front edge of the vertical piece of wood. Ensure the template is kept
parallel with the jig body.
Adjusting the fence
The fence controls how deep the female dovetail slots are by limiting the
movement of the base of the router. There are no set values of distance as
this value depends on the size of the router base and the thickness of the
wood. The formula for this is:
Distance = (2 x thickness of vertical wood) + (½ width of router base)
– (cutter radius)
This is measured from the fence to the end of the fingers on the Template
(7). If you have used the recommended ½
" dovetail cutter, the cutter radius
value will be 6.35mm ( 1 ⁄
4
")
Note: If using a router without a completely round base (possibly a router
that has 2 flat sides to its base) measure the distance from the centre of
the base to the edge closest to the centre of the base. When operating the
router remember to work to the base side you have measured to. If you set
to the widest distance of the base there is a risk of the cutter coming into
contact with the jig if you then use the side of the base closest to the cutter.
Cutting a dovetail joint
1. Ensure both the router and jig are set up using the instructions above,
including using scrap wood in the jig if this is your first dovetail joint
2. Wear any necessary personal protective equipment including a face
mask especially if there is any risk of toxic particles (for example, from
man-made composite woods)
3. Set the router to a speed that does not exceed that of the maximum
speed of the dovetail cutter
4. Place the router onto the Template (7) with the router cutter not
touching the wood but close to it in an ideal position to start cutting
5. Hold the router securely and turn on, allow the motor to reach full
speed
6. Carefully begin cutting, allowing the router guide bush to follow the
slots of the template, entering the slot on the left side and following
the curve of the slot so that the guide bush is against the right side
of the slot when leaving the slot. Do not cut into slots individually but
instead cut in one process carefully going around the shape of the
template. The end result will look like Fig C
7. While operating the router make sure the cutter does not contact any
part of the jig and do not lift the router while cutting. Once the cut
is complete, switch off the router and allow the cutter time to stop
rotating before removing carefully from the template
• Once the cut has been made, remove the wood from the jig and check
the joint. A correctly cut joint should be neither too loose nor too tight to
connect. Using a light mallet can be used to tap the joint into place if it
is a tight joint.
• If the joint is not correct or if more practising is required, saw off the ends
of the test pieces so they can be used again
Optional Accessories
Contact your Silverline stockist for a range of accessories suitable for use
with this product including;
245122 – 10 Piece Guide Bush Set in Case (including a 11.1mm ( 7 ⁄
16
")
guide bush)
792084 – 12 Piece ¼ " Router Bit Set (including a ½" 14° dovetail cutter)
656577 – 24 Piece ¼ " Router Bit Set (including a ½" 14° dovetail cutter)
Maintenance
Keep your dovetail jig clean. Do not allow dust to build up around the jig.
Clean regularly with a soft brush or vacuum, clean resin off with a suitable
solvent
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