How to Use Flex Feature in SolidWorks: Step-by-Step Guide
In SolidWorks, the
Flex feature allows you to bend, twist, taper, or stretch a part by selecting the feature and defining the type of flex and parameters. You start by selecting the part body, then choose the flex type, and adjust the controls to see the deformation in real time.Syntax
The Flex feature in SolidWorks is accessed through the Features toolbar or Insert menu. The main parts of the Flex feature include:
- Flex Type: Choose from Bend, Twist, Taper, or Stretch.
- Selection: Select the solid body or faces to apply the flex.
- Parameters: Define angles, distances, or factors depending on the flex type.
- Deformation Axis: Set the axis or edge around which the flex happens.
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Flex Feature Usage Steps: 1. Select the solid body or faces. 2. Choose Flex type: Bend, Twist, Taper, or Stretch. 3. Set deformation axis or edge. 4. Enter parameters (angle, distance, factor). 5. Preview and confirm the flex.
Example
This example shows how to bend a simple cylindrical part using the Flex feature.
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1. Open your part file with a cylinder. 2. Go to <strong>Insert > Features > Flex</strong>. 3. In the Flex PropertyManager, select <em>Bend</em> as the Flex type. 4. Select the cylindrical body as the selection. 5. Choose the axis along the cylinder length as the deformation axis. 6. Set the bend angle to 45 degrees. 7. Click <em>OK</em> to apply the bend. Result: The cylinder will bend 45 degrees around the chosen axis.
Output
The cylinder part is visibly bent 45 degrees along the selected axis, showing a smooth curve deformation.
Common Pitfalls
- Wrong axis selection: Choosing an incorrect deformation axis can cause unexpected bending or twisting.
- Over-flexing: Applying too large angles or distances may distort the part unrealistically or cause errors.
- Ignoring part constraints: Flexing parts with complex features or mates may break the design intent.
- Not previewing: Always use the preview option to check the deformation before confirming.
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Wrong way: - Selecting a random edge as axis causing the part to twist oddly. Right way: - Carefully select the main axis or edge aligned with the intended deformation direction.
Quick Reference
| Flex Type | Description | Typical Use |
|---|---|---|
| Bend | Bends the part around a selected axis | Curving pipes, brackets |
| Twist | Rotates the part around an axis by an angle | Twisting shafts, springs |
| Taper | Narrows or widens the part along an axis | Creating tapered rods or cones |
| Stretch | Extends or compresses the part lengthwise | Lengthening beams or rods |
Key Takeaways
Use the Flex feature to bend, twist, taper, or stretch parts easily in SolidWorks.
Always select the correct deformation axis to get the desired effect.
Preview the flex deformation before applying to avoid errors.
Avoid extreme flex parameters that can distort or break your model.
Flex works best on simple solid bodies without complex constraints.