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Roughing Process gibbscam

The Roughing process creates offset, zig zag, and face milling routines designed to remove material quickly. Cut shape selection for roughing is very similar to contouring.

Proc A 1 pocket A

Selecting a closed 2D contour for the cut shape will create a roughing routine to remove material from the inside of the selected closed shape. This is no different than standard 2D machining.
Selecting a 2D contour and a solid (or sheet) for the cut shape will create a toolpath based on the selected shape. That toolpath will then be projected down in Z onto the body. The Z moves of the toolpath will only be modified where it would have gone into the selected solid (or sheet).
Selecting a body for the cut shape will create toolpath that will pocket out the body (or face) from the stock. The stock is used as the outer shape for the pocket.
Individual faces on a model can also be selected for the cut shape; this allows for individual pockets to be machined. To machine selected pockets, select the bottom face of the pocket for the cut shape.

The toolpath at the final Z depth (specified by the floor Z) is calculated first. Each pass will be calculated from that depth and moved up in Z by the specified Z step amount. If the pass at the floor Z depth cuts into a selected solid or sheet, that pass will not be created, and the next pass (a step above) will be the final pass. The system will continue creating steps up in Z until the surface Z level is encountered. No pass will be created above the surface Z.

When Use Stock is unchecked, the stock definition is ignored. Roughing a solid will machine all selected faces, meaning that a pocket can be machined by simply selecting the floor (if the pocket’s floor is flat).

When Use Stock is active, toolpath will be confined to the current stock definition even if the part extends past the stock. The only exception is any value defined in the open pocket dialogs, which specifically allow a tool to move beyond the stock. Note that any passes above the stock will be omitted but passes below the stock will still be generated to the final Z depth.

If a fully-selected solid is being roughed, the tool will machine inward from the stock definition to remove material. The term “fully-selected” refers to all the faces the tool can see being selected. This does not include faces on the backside. A partially-selected solid will not use the stock to create a larger area to rough but will trim the pocket to stay inside of the stock definition.

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