Festool Domino DF 500 - Manual (Page 22)

22 Domino DF 500 Tenon Joiner
Calibrating the Horizontal Position Gauge
The horizontal position gauge (also called the sight gauge)
is used for aligning Domino tenons to a pencil mark on the
workpiece. If the gauge is not perfectly centered over the
mortising slot, the two workpieces will not be aligned
when the joint is assembled.
Calibration Procedure
1.
Take two pieces of scrap wood, and draw a thin line on
each piece where a tenon is to be placed.
2.
Set the mortise slot width to the narrow setting (page
8).
3.
With the middle line of the sight gauge lined up on the
pencil line, plunge a mortise slot into each piece of
wood.
4.
Join the two pieces of wood together without glue, and
examine the alignment of the original pencil lines.
5.
If the pencil lines are not aligned, loosen the two
screws on the sight gauge and slide the gauge
sideways as noted in the upper image.