Extrude to an External Reference Surface

Extrude to an External Reference Surface
Emil Rindell

Emil Rindell

Jonas Bryntesson

Jonas Bryntesson

Henrik Andersson

Henrik Andersson

September 15, 2026

Emil Rindell

Emil Rindell

Jonas Bryntesson

Jonas Bryntesson

Henrik Andersson

Henrik Andersson

September 15, 2026

Extrude - up to external reference surface with v2027

Version 2027 introduced the ability to extrude toward the surface of another part. This means you can now use a point or surface from another part as a mirror plane or as a “stop” for an extrusion.

Download the 3D scene used in the video.

NOTE: Keep in mind that this type of “reference” requires that the referenced object remain stable over time, continue to exist, and not change “too much.” If the reference is lost, the model will no longer be able to maintain its properties and will therefore cease to function. Therefore, it may be necessary to apply one or more constraints to ensure that this “rule” holds up over time, which can be a step that makes the model more complex and requires more time to consider how it should function.

One clear advantage of IRONCAD is that there are alternative ways to create similar properties (e.g., mirroring with TriBall) where you don’t have to create or use this type of “live reference.” Of course, it’s also useful when needed and can save a lot of time.

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