TREND T3-USA, Руководство по установке, использованию и обслуживанию

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Guide bush
fitted to
router.
E
d
D
Template
FORMULA
(D - d)
E =
2
-13-
Using the Guide Bush
The 5/8” guide bush (1) is fastened to the
router’s base from beneath using the two M5
countersunk machine screws (2) and two nuts
(3) supplied.
Routing with a Template
The guide bush is used in conjunction with a
template when the routing operation is repetitive
or the work piece is complex in shape. The
template is fixed to the upper surface of the work
piece. A bit is chosen with a diameter which will
pass through the center of the bush leaving
enough clearance. The bit can be straight or
shaped. The router can then be guided around
the template so that the shape of the template
will be replicated.
Making the Template
The template is cut from 1/4” MDF, plywood or
plastic to the shape required. The guide bush
offset needs to be allowed for when calculating
the shape of the template. The template must
be smaller by an amount equal to the difference
between the ‘outer edge of the guide ring’ and
the ‘outer edge of the bit’. See below for the
offset calculation. The edge of the template must
be free of imperfections as these will be
replicated in the final work piece.
Calculations for template offset
Template
Template
guide bush
Workpiece
Guide
bush ring
Cutter
2
1
3
Using a template
to rout an edge
straight.
Alternatively it can
be used for cutting
shapes or making
panelling grooves.
T3 - USA