"Z" Dimension
Before making a template (or using the edge of the workpiece) for shaper cutting, the "Z" dimension must be established in order to determine the shape and size of the finished stock. The "Z" dimension is the difference between the innermost part of the cutter edge and the outside diameter of the ball bearing follower (collar). See Figure 28.
Note: The "Z" dimension can be either positive or negative.
The "Z" dimension is positive if the cutter is larger than the collar bearing.
The "Z" dimension is negative if the cutter is smaller than the collar bearing.
Figure 28
Depth of Cut
The depth of cut is the distance from the outside circumference edge of the collar (which the work rides against) to the outside edge of the cutter. The depth of cut is determined by the position of the fence relative to the cutterhead and/or by the use of shaper collars (see Figure 29).
Straight Edge Shaping
Straight edge shaping is always performed with the workpiece against the fence. Use only push sticks and hold downs to keep the workpiece on position.
Figure 29
Do not use a miter gauge to feed material along the fence face. The work- piece can bind and cause kickback. Failure to comply may cause serious injury!
To set up:
1.Disconnect or unplug the machine from its power source.
2.Check to see that the fence faces are parallel, properly in line or offset if necessary, and securely tightened.
3.Rotate the cutters and inspect for clearance.
4.Lock the spindle.
5.Install all necessary guards.
6.Reconnect power to the machine.
7.Take a trial cut on a piece of scrap the same thickness as workpiece.
Note: Only a short cut is necessary to determine if the profile, depth, and height of cut is correct.
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