Hello everyone, To manufacture a sculpture in PMMA, I’m trying to model a set of 8 mm thick panels that will later be glued together. However, I’m having trouble with the angles between the panels, as they are very complex: none of the panels meet at a 90° angle, and everything is skewed. Getting …

Do you want to glue the panels bluntly or with a miter (halving the angle)? Cutting on a 5 axis CNC or manual table saw?

It will be cut using a laser cutter, and the angles will then be refined manually on a table saw. No 5-axis machining is available. At the moment, I’m using the Shell command and then modeling each panel face by face. However, my main challenge is first obtaining completely planar surfaces without…

[image] Thibault Z: However, my main challenge is first obtaining completely planar surfaces without significantly altering the original model, which is proving quite difficult… That’s a different problem. To make an existing surface planar: IPlane with 3Point option and select three points…

To create planar surfaces: Alternative: Use the Plane command. I frequently use the 3 point option. Alternative: Set the CPlane to the desired orientation. The 3 point option may be useful. Create the surface on the CPlane.

Thanks, the Iplane and pull command works well. Do you think that the shell command is the right process to create panels?

as you asked for commands / workflows: _selPlanarSrf (for checking) to make surfaces planar: Gumball → orient to Object → z-Scale to 0 Scale all surfaces so they nicely intersect. _createSolid to get a base-Volume _extrudeSrf to get initial plates _BooleanIntersect (baseVolume with plates) _…

That’s the kind of circular saw a company used, when they built a prototype 2m x 1,5 m for us for an exhibition, only way to cope with so many different angles. Only one attempt, and everything fitted like hand in glove. I was pretty well chuffed. [Lars Jahnke work in progress]

hello this geometry is really not very planar. I used a tool from Grasshopper sort of CreateSolid to make a quite good shape. it is named Voronoi Cell. [image] Then I use one of my tool. with 10 mm thickness (But 8 mm in discussion ??) [image] Coded Finger Joints Grassh…

[image] Thibault Z: Do you think that the shell command is the right process to create panels? I would use OffsetSrf with Solid=Yes rather than Shell. Shell is essentially a combination of removing one or more surfaces from a polysurface and then OfffsetSrf with Solid=Yes. OffsetSrf…

Thanks everyone for your replies! I’m used to working with the company that manufactures my sculptures, but my previous projects were generally simpler and involved more right angles. It seems to me that the advantage of OffsetSrf is that it makes it easier to visualize the resulting edge conditio…

Modeling panels with complex intersecting angles

Rhino

laurent_delrieu (Laurent Delrieu) June 11, 2026, 2:28pm 9

hello

this geometry is really not very planar. I used a tool from Grasshopper sort of CreateSolid to make a quite good shape. it is named Voronoi Cell.

Then I use one of my tool. with 10 mm thickness (But 8 mm in discussion ??)

test box.3dm (12.0 MB)

brep finger.gh (25.7 KB)

If you want to make it yourself, you will need a license at the moment. But I will free these tools in a next release.

Could be nested in 2000 mm 1200 mm sheet.

A convex polyhedron with flat faces and a different number of angles

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Modeling panels with complex intersecting angles

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