When the edge has been properly trued, put on the face marks suitable for the face edge.
29. Finishing the Second Edge.
—A line gaged from the face edge indicates the proper stopping place in planing the second edge. This line, if lightly made, should be half planed off.
As the line is parallel with the face edge, no straight edge test is necessary. The try-square test for squareness, the beam being held against the face side, must be frequently applied when approaching the gage line.
Where the amount of waste stock to be planed is about an eighth of an inch, the plane-iron may be set a little deeper than average. When near the line, however, it must be set quite shallow. If the waste stock measures more than three sixteenths of an inch, the rip-saw should be used, sawing parallel to the gage line and about one-eighth of an inch away from it.
30. Finishing the Second Side.
—Lines gaged from the face side on the two edges show the amount to be planed.
The test for this side is made by placing the straight-edge across the piece from arris to arris as the planing proceeds, to see that the middle shall be neither high nor low when the gage lines have been reached. No other test is necessary; a little thought will show the reason.
Never attempt to work without lines. If by mistake you plane out your line, take the piece to your instructor at once, unless you have been otherwise directed, that he may tell you what to do.