Also best at OpenSCAD, seemingly for the same reason, at least in terms of "iterate on a design, comparing visual output to target".
+1 gemini models where really the only ones fullt grasping spatial reasoning even compared to opus (at least when i last cared to check it)
Are you manually rendering previews of its OpenSCAD output to create images for it to review, or do you have a workflow that automates that?
I've found Sol excellent at OpenSCAD.
But I don't do "compare visual output to target" as much as 3D reasoning type tasks (eg: "Build a G1 curve where the -X face meets the +Z face" etc)