COMPLETING THE PATTERN OF 3MM HOLES
6
Extending Rows Left and Right (Figure 11)
Completing the remaining columns (Figure 12)
Extra Large Bench Method (Figure 13)
In order to extend the pattern of holes to the left or to the
right, position a Parf Stick as shown and secure with a pair of
3mm Pins. The Pins should be as far apart as possible in order
to maintain the accuracy of the layout.
It is recommended that the Pins are at least 6 x 96mm apart
(they are 7 x 96mm in Figure 11).Should a larger bench top be
constructed then the Triangle Extension Method should be
adopted (see below).
Position the Parf Sticks vertically, as shown, and fix with
a pair of 3mm Pins. Drill the 3mm holes.
In order to create an extra large bench top start by creating the
basic 10 x 10 square of 3mm holes (121 holes).Then extend to the
left and right at the top shown at A (1st) and A (2nd) using two
Parf Sticks forming a 6 - 8 - 10 triangle.
Figure 12
Figure 11
Figure 13
Once the top row has been extended to the left and right
perform a similar operation for the lower area shown at B (1st)
and B (2nd). Then complete the new columns with a single Parf
Stick, held by two 3mm Pins in a similar fashion to that shown
in Figure 10 which completes the blue and green area of holes.
The remaining holes in the pink area can be created by
extending the columns marked with the blue arrows
downwards and then filling in using a method similar to
that in Figure 9.
