B. EXAMPLES
Rub collars may be used in any of the following positions:
1.Below the cutter.
2.Above the cutter.
3.Between two cutters.
Suppose you want to mill a 3/8" x 1/2" rabbet. You must have a sufficient amount of uncut wood to provide adequate contact with the rub collar. Remember that the width of the rabbet is controlled by the diameter of the rub collar and the depth of the rabbet is controlled by the spindle height adjust- ment. A rabbet cut is a good example, since you’ll get the same result with the rub collars either above or below the cutter. The following diagrams illustrate different spindle configurations.
Rub collar below the cutter:
Workpiece |
| Spindle |
| Spindle Nut | |
| Cutter | |
| Safety Washer | |
|
| |
|
| Rub Collar |
Table |
| Table |
Spindle Assembly
Figure 17
When the rub collar is used below the cutter, as shown in Figure 17, the progress of the cut can be observed. However, any unintentional movement may lift the workpiece into the cutter, damaging your work and creating an unsafe situation.
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