Copy, Extrude & Mirror

Efficiently create repetitive geometry with these duplication tools.

Copy

Create copies of selected geometry at a specified offset.

Quick Copy Mode

  1. Select the geometry to copy
  2. Press Ctrl+C to enter Copy mode
  3. Draw a line to define the copy direction and distance

Copy Dialog

Press Shift+C for more options:

  • Offset Per Copy: Specify X, Y, Z distances in your active length unit
  • Number of Copies: Specify the number of arrayed copies

Extrude

Model geometry fast by extruding selected nodes or members.

Quick Extrude Mode

  1. Select nodes or members
  2. Press Ctrl+E to enter Extrude mode
  3. Draw a line to define the extrusion direction and distance

Extrude Dialog

Press Shift+E for more options:

  • Offset Per Segment: Specify X, Y, Z distances in your active length unit
  • Number of segments: Array extrusion into multiple segments

Extrude behavior:

  • Extruding nodes creates new nodes and connecting members
  • Extruding members creates a frame (new members and connecting members)

Mirror

Create mirrored copies of geometry about a plane.

Mirror Mode

  1. Select the geometry to mirror
  2. Press Ctrl+M to enter Mirror mode
  3. Choose a mirror plane by pressing X, Y, or Z (YZ, ZX, or XY)
  4. Click a point on the canvas to define the mirror location
  5. Choose Keep (Y) to retain the original geometry alongside the mirrored copy, Delete (N) to keep only the mirrored geometry, or Cancel to stop

Loads follow their authored coordinate system during mirror. Global and nodal load components remain aligned with the fixed model axes. Local member forces and temperature gradients mirror with the member as ordinary vectors, while Local member moments mirror as axial vectors under the right-hand rule. Copy and Extrude are translations, so their load components are preserved unchanged.