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Geometry Repair
Manage CAD, FE, and 2D parametric sketch geometry.
Sketching
Create and edit 2D parametric sketch geometry.
Slots
Sketch and edit slots.

Welcome
What's New
View new features for HyperMesh CFD 2026.
Get Started
Learn the basics and discover the workspace.
Onboarding Resources
Discover HyperMesh CFD functionality with interactive tutorials and community resources.
Solution Layers
Solution-centric workflows allow you to traverse through modeling environments using a dedicated UI layer.
Manage Files and Data
Create, open, import, and save models.
Convert
Use the Convert tool to convert entire models between data types.
Geometry Repair
Manage CAD, FE, and 2D parametric sketch geometry.
- Sketching
  Create and edit 2D parametric sketch geometry.
  - Introduction to Sketching
    Learn about sketching basics including the sketch plane, legend, constraints, context menu options, and construction geometry.
  - Variables
    Create and assign variables to parameterize a model. This allows you to quickly iterate and compare design concepts by tweaking the values of the variables.
  - New Sketch
    Start a new sketch and select a sketch plane.
  - Project
    Project selected geometry onto the sketch plane as construction geometry.
  - Intersect
    Extract curves resulting from the intersection of the sketch plane with selected parts.
  - Point/Lines
    Sketch and edit a point, line, polyline, or line-arc.
  - Rectangles
    Sketch and edit a rectangle.
  - Polygons
    Sketch and edit a parallelogram or a regular polygon.
  - Circles
    Sketch and edit a circle.
  - Ellipses
    Sketch and edit an ellipse or an elliptical arc.
  - Slots
    Sketch and edit slots.
  - Arcs
    Sketch and edit an arc.
  - Splines
    Sketch and edit a spline.
  - Dimension
    Use the Dimension tool to define and/or constrain the dimensions of a sketch.
  - Image Plane
    Create an image plane that you can use as a background reference image, so you can trace lines and curves to start your design.
  - Transform
    Translate or rotate sketch entities.
  - Trim/Break
    Trim or split a sketch curve.
  - Extend
    Extend or shorten an entity of a sketch curve.
  - Fillet
    Round the corners of 2D sketch curves to create fillets with the same radius or different radii.
  - Offset/Mirror
    Offset or mirror a sketch curve.
  - Pattern
    Create a linear or circular pattern of sketch entities.
- Geometry
  Create, edit, and cleanup geometry.
- Discrete Geometry
  Work with discrete geometry like FE Geometry and floating elements.
- Model Build and Assembly
  Create, organize, and manage parts and subsystems.
Meshing
Generate surface/volume mesh by defining mesh controls, or interactively create and edit 2D surface mesh.
Setup
Prepare your model and run the simulation.
Post-Processing
Post-process the simulation results by creating visualizations and measurements.
Design Exploration
Once the baseline model is prepared, you can define morph volumes, morph geometry, create design shapes and run DOE studies. These tool work for both AcuSolve and ultraFluidX-based workflows.
Automation
Automate simulation processes with templates and utility scripts.
Solver Help
More resources for AcuSolve and ultraFluidX solvers.

View All Altair HyperWorks Help

Slots

Sketch and edit slots.

Sketch a Slot

Sketch a slot by defining the start and end points, mid and end points, arc center and end points, or three arc points.

On the Sketch ribbon, select one of the Slots tools.

Figure 1.
Select a face or plane as the sketch plane.

Sketch a slot:


To sketch this	Do this
Slot by 2 Points Figure 2.	Click to set the end points of the slot, and then click to set the width of the slot.
Midpoint Slot Figure 3.	Click to set the midpoint and end of the slot, and then click to set the width of the slot.
Arc Slot by Center and Ends Figure 4.	Click to set the center of the circle that defines the slot, click to set the end points of the slot, and then click to set the width of the slot.
Arc Slot by 3 Points Figure 5.	Click to set the end points of the slot, click to set the radius at the middle of the slot, and then click to set the width of the slot.

Tip: Select the Create Dimension checkbox to automatically create dimension constraints with the slot:

Figure 6.

The center line of the slot is created as construction geometry.

Right-click and mouse through the check mark to exit, or double-right-click.

Edit a Slot

Reposition, resize, or apply a sketch constraint to a slot.

Edit the slot:


To	Do this
Reposition a slot	Select the line and drag it, or Reposition the end points.
Adjust the length of a slot	Drag the point if there is no dimension, or Select the line, then enter a dimension to specify the length.
Adjust the width of a slot	Select the end curve and then enter a dimension to specify the width, or drag the arc end point if there is no dimension for the width.
Change the diameter	Select the sketch curve, then enter a radius.
Apply a sketch constraint	Right-click a sketch curve, then select a sketch constraint on the context menu.
Convert a sketch curve into construction geometry	Right-click a sketch curve, then select Construction. Construction geometry is used as a reference to line up or define other geometry.
Hide dimensions	Deselect Show dimensions in the Preferences.

Right-click and mouse through the check mark to exit, or double-right-click.