Hello Rhino Team, I appreciate all the ongoing development work on Rhino. I have a specific question regarding constraint-based sketching: Over the past few years, we have seen some experimental constraint tools in Rhino WIP, but there has not been a clear update on whether a fully integrated para…

[image] Ftzuk: They were asking what you think about releasing it as a plugin. The code that has been written is too deeply integrated with the core to simply release as a plug-in.

[image] Tom_P: [Screenshot 2026-02-17 at 16.25.09] The Rhino command „Revolve“ is history enabled. Rhino examples usually revolve a curve with many points and spans. In NURBS modeling, however, it is preferable to draw each curve individually and cleanly, building to corners and with oversho…

[image] UAS-Design: curve individually and cleanly that s the power of constraints of parasolid kernel and others - for sure not of rhino with very limited history. curve boolean produces ugly micro edges - see this topic

[image] Tom_P: curve boolean produces ugly micro edges I was wondering why it does this couple days ago :confused:

Hi friends! I also have been frustrated by the lack of parametric sketch constraints. I also keep finding myself wanting a more contemporary parametric design tree similar to engineering focused CAD applications. But I LOVE rhino, and one of the reasons why I love rhino is the community of brillian…

Hi @pmpetros Yes love that thread you posted. See my reply to it. RM

[image] wim: The developers asked for feedback that would allow them to define that project better but felt that this feedback never came. [image] Rhino 8 WIP Feature: Constraints It felt a little like a solution hunting for a problem. What would be helpful for kickstarting this when work …

[image] wim: a very specific and detailed example of what you would like to see Hi Wim, here is a very specific and detailed example of what i would like to see. I would very much like to have the sketch constraints functionality that Joshua Kennedy demonstrated in 2022 in Rhino: https://m.…

[image] Wim Dekeyser: isn’t going to move that project in any way… 15 years ago Did you know something about that plug in or developer?

It’s just sad to be honest, this kind of reply. I for sure have use cases where rhino is quicker. But it is not about that. We are not talking about if rhino is better in some things. We are talking about features we want that are awesome and are really game changers. That is what you want in a new…

Will Rhino 9 Include a Parametric Sketch Constraints System?

Rhino

brvdln (Brv) February 23, 2026, 7:45am 40

This was an old closed topic; here there were already some early developments of constraint-based modeling.

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Will Rhino 9 Include a Parametric Sketch Constraints System?

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