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The Pencil Mill cycle is used to clean up material remaining from a previous (finishing) cycle, for example cusps left at the end of a Parallel Lace cycle and consists of a single pass along internal surface edges and intersections.
You can select any number of surfaces for this cycle which will then detect all internal intersections and place a toolpath at that point. The order of machining should, where possible, try to link intersections together to form a continuous path. This will have the effect of keeping the tool down on the surface.
A "shortest path" between successive curves will be taken to reduce the length of non-cutting moves.
As part of the data input for this cycle, you will be able to define containment boundaries. Any pencil curves outside the specified boundaries will be discarded and those that cross the boundaries will be trimmed to their edges.
The Pencil Mill cycle only supports ballnose cutters.
Please note that all pre-version 5.75 pencil milling cycles will default to using the Long Link Type 'Optimised'.