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Rectangular narrow faces are planed in the following working steps:
- Coarse unevenness is removed by the jack plane and the smooth plane.
- Subsequently, the narrow face is worked by means of the trying plane,
. the trying plane is moved completely over the total length of the workpiece;
. a square, planed strip held by one hand at the face of the plane facilitates the rectangular move of the trying plane.
Figure 26 Handling of the trying
plane for planing of narrow faces
1 trying plane, 2 held strip, 3 workpiece
Exact planing of rectangular narrow faces is checked as follows:
- Straightness by
. applying a batten onto the narrow face;
. joining workpieces belonging together according to the light-gap method.
- Squareness by placing a 90° steel square to the wide face.
When sighting, a hardly noticeable light gap must be visible between the square and narrow face.
Figure 27 Checking of squareness of
the wide face to the narrow face
1 back square, 2 narrow face (square), 3 light gap (not square)
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