XII. RUB COLLARS
Rub collars are used when shaping curved or irregular workpieces, such as arched doors or round table tops. They also allow you to perform freehand work.
There are two types of rub collars; solid and
IMPORTANT: The diagrams shown on the following pages denote different methods and arrange- ments for spindle stacking. These diagrams are intended as a source of general reference. Remember to apply all of the safety considerations we have covered to this point, as well as those to come – as they apply to your situation. If you are confused about any of the configurations, DO NOT attempt them. Seek adequate instruction before attempting complex shaper operations.
NOTE: the following illustrations are shown with the guard removed for clarity. DO NOT attempt to operate the shaper without guards or protective devices in place.
A. HOW RUB COLLARS ARE USED
Collars are used to limit the depth of your cuts and are particularly useful when doing pattern work or irregular shaping. The amount of wood to be removed from the workpiece is determined by the diameter of the rub collar and the cutting circle of the cutter. Some hints for the selection of rub col- lars are listed below. PLEASE FOLLOW THE SAFETY MEASURES WE HAVE NOTED THROUGH-
OUT THE MANUAL.
1.Select the appropriate shaper cutter to match your desired profile.
2.Determine if you will be working with a pattern or if the workpiece will rub against the collar.
3.Determine how much wood must be removed to achieve the desired profile.
When only part of an edge is to be milled, as in Figures
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