Rebating - DeWalt DW1251 Adjustment And Operating Instructions

Fig. 42
(v) Now, tilt the motor to its 90° position on the bevel
scale so that the Shaping Head is horizontal.
(vi) Before operating the machine you should now mount
the special Shaping Head guard and adjust its
position depending on the depth of knife profile you
intend to use (Fig. 39).
Position the yoke assembly on the arm so that only
the amount of knife profile required extends in front of
the fence. The height of the Shaping Head above the
table will depend on the height of your material and
the position the moulding is to trace on it. If the
Shaping Head needs to be in a position otherwise
obstructed by the fence, you have the following two
options:
EITHER A. Cut away a section of the existing fence
to provide sufficient space for the block
and guard to protrude through it*.
OR B. Position two pieces of timber (of the same
thickness as the fence provided) in the
fence position, one on either side of the
moulding block.
"Note:- If you choose option A, it is recommended that
you replace the modified fence with a complete
new fence for normal sawing operations.
(viii) Having locked the yoke assembly into position on the
arm with the rip lock and positioned the guard so that
it just clears the material, feed the material firmly and
evenly along the fence from the right into the shaper
cutters. Maintain positive pressure.
IMPORTANT:Use a piece of waste wood as a
pusher (Fig. 41) to make sure your
hand keeps a safe distance from the
knives.
(viii) An infinite variety of profiles can be cut using the
Shaping Head by varying the height of the cutter
presented to the wood (Fig. 42).
NOTE:Figs. 39/40 feature the DeWalt Premium
Quality Shaping Head which is designed for
the more intense, larger profile
shaping/rebating applications. There is also
available, however, a general-duty shaping
head (Fig. 43), which is perfectly satisfactory
for slow-feed, fine-finish applications and has
a similarly wide range of compatible cutters.
PUSHER
SPRING
Fig. 41
Fig. 43
12.2 Rebating
Fig. 45
(i) With the straight-edged knives mounted, the
Shaping/Moulding Head can also be used for narrow
rebating, in the same way as described above.
(ii) If wider rebates are required, then a Dado Head
should be fitted (see separate instructions) but the
guard used should be that intended for the Shaping
Head. The operation, using the Dado Head in this
way, is the same as with the Shaping Head (Fig. 44).
Note the use of home-made wooden springs to help
in ensuring the timber is held firmly against the fence
while cutting progresses (see Fig. 41).
(iii) Again the motor can be tilted for bevelled rebate
cutting.
(iv) If the rebating is necessary for a mortice and tenon
joint, then the Dado Head can be used in the normal
cross-cut position with repeated passes of the Head
across the material until the required width of rebate
has been obtained (Fig. 45).
Fig. 44
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