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Субтрактивный профиль

Субтрактивная спираль

Верстак "PartDesign"

Описание

Субтрактивный профиль по траектории создает субтрактивное твердое тело в активном теле, перемещая один или несколько эскизов (также называемых поперечными сечениями) по открытому или замкнутому контуру. После чего созанная форма вычитается из существующего твердого тела. Субтрактивный профиль часто применяется совместно с инструментами: спираль и связующая форма для создания резьбы; подробности см. в руководстве по созданию резьбы.

Применение

1. There are several ways to invoke the tool:
   • Press the Subtractive pipe button.
   • Select the PartDesign → Create an substractive feature → Subtractive pipe option from the menu.
2. In the Select feature dialog, select a sketch to be used as first cross-section and click OK.
   • Alternatively, a sketch or a face of a 3D object (introduced in 0.20) can be selected before starting the tool. You will not get this dialog then.
3. In the Pipe parameters under Profile, press the Object button.
4. Select the sketch to be used as path in the 3D view:
   • Alternatively, edges of the body can be selected by pressing Add Edge and selecting edges in the 3D view.
5. To use more than one cross-section, under Section transformation set the Transform mode to Multisection; press Add Section then select a sketch in the 3D view. Repeat for each additional cross-section.
6. Set options if needed and click OK.

Опции

Section Transformation:

• Select Constant to use a single profile
• Select Multisection to use multiple profiles

Section Orientation:

• Standard
  • This keeps the cross section shape perpendicular to the path. This is the default setting.
• Fixed
  • Orientation set by first profile and constant throughout. This deactivates the alignment to the path normal vector. That means that the cross-section shape will not rotate with the path. Sweep along a circle to see the effect.
• Frenet
  • Create minimum possible twisting of profile. For more info, see Frenet-Serret Formulas
• Auxiliary
  • Specify secondary path to guide pipe.
  • For each point P along the sweep path, there will be a corresponding point Q on the auxiliary path.
  • As the profile is swept, it will be transformed such that the PQ line is the normal of the sweep path.
  • If Curvelinear equivalence is set, then the Q points are scaled proportionally along the sweep path, regardless of is length.
• Binormal
  • Specify binormal vector in X, Y and Z

Corner Transition

• Transformed
• Right
• Rounded

Свойства

• ДанныеLabel: name given to the operation, this name can be changed at convenience.
• ДанныеRefine: true or false. If set to true, cleans the solid from residual edges left by features. See Part RefineShape for more details.
• ДанныеSections: lists the sections used.
• ДанныеSpine Tangent: true or false (default). True extends the path to include tangent edges.
• ДанныеAuxiliary Spine Tangent: true or false (default). True extends the auxiliary path to include tangent edges.
• ДанныеAuxiliary Curvelinear: true or false (default). True calculates normal between equidistant points on both spines.
• ДанныеMode: profile mode. See Options.
• ДанныеBinormal: binormal vector for corresponding orientation mode.
• ДанныеTransition: transition mode. Options are Transformed, Right Corner or Round Corner.
• ДанныеTransformation: Constant uses a single cross-section. Multisection uses two or more cross-sections. Linear, S-shape and Interpolation are currently not functional.

Примечания

Субтрактивный профиль

Субтрактивная спираль

Верстак "PartDesign"