Ortho to lower edge curve

During machining the tool axis is always orthogonal to the selected lower curve.

Working with Ortho to lower edge curve, morphing between two curves or parallel to curve must be enabled

$source\side_tilt_definitions_ortho_lower_edge_curve1.jpg$

Hit the "Advanced" button for advanced options

$source\side_tilt_definition_advanced_button_dialog.jpg$

and the advanced options windows pops up

$source\advanced_options_for_tilting_relative_to_cutting_direction_dialog_1.jpg$

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