Skip to main content
P
PC_143651128-Gravel
8-Gravel
October 27, 2025
Solved

Negative geometry of a model (turbine rotor) in Creo 10

  • October 27, 2025
  • 1 reply
  • 298 views

Hello all,

 

since there is no direct way of creating negative volume of a part (at least as far as I know-being relative rookie) I wonder if there is any, still relatively quick, way of doing that in Creo 10. With that I have in mind Ansys Space Claim 3D modeller where it is possible to close the model with planes and create volume inside of complex geometry and these defined planes. I would want a volume of water that fills inside of a turbine rotor. 

 

Thank you for your comments, suggestions...

Best regards!

Best answer by tbraxton

You can use multibody Boolean operations to subtract one body from another. This would enable you to create a closed volume around the turbine rotor and then subtract the rotor volume from the enclosing volume body.

Subtract Bodies

 

The Merge/Cut-out functionality to do this. You can also copy the body surfaces of the rotor and use this closed quilt to bring the rotor geometry into an external dependent model (using external copy geometry) and then you can solidify the quilt to remove material in the target model.

1 reply

tbraxton
22-Sapphire II
tbraxton22-Sapphire IIAnswer
22-Sapphire II
October 27, 2025

You can use multibody Boolean operations to subtract one body from another. This would enable you to create a closed volume around the turbine rotor and then subtract the rotor volume from the enclosing volume body.

Subtract Bodies

 

The Merge/Cut-out functionality to do this. You can also copy the body surfaces of the rotor and use this closed quilt to bring the rotor geometry into an external dependent model (using external copy geometry) and then you can solidify the quilt to remove material in the target model.

    Terms & ConditionsAccessibility statement