"Voussoir" Stereotomic design plugin for Grasshopper

Voussoir — Grasshopper Plugin Release (v1.1.0)

Hi everyone,
We're excited to share the first public release of Voussoir, a Grasshopper plugin focused on parametric stereotomic vault generation and voussoir-block modelling.


What Voussoir does

Voussoir introduces a set of tools designed to:

  • Generate base vault geometry — create base surfaces for barrel vaults from simple guide lines/curves (springer lines + vault profile).
  • Divide vaults into voussoirs — automatically subdivide vault surfaces into spanwise and lengthwise voussoirs, defining intrados planes, contact surfaces, and longitudinal/transversal division planes.
  • Generate solid voussoirs with intrados, extrados and contact surfaces — suitable for modelling or fabrication.
  • Generate springers (trapezoid or wall-based) based on the vault geometry and the voussoirs closest to each springer line.

The aim is to make vault design more parametric, intuitive, and fabrication-ready inside Rhino/Grasshopper.

Components

Component Role
BVSrf Base vault surface: define springer lines + profile → vault surface
BVDivG Vault division: create division grid for voussoirs
VoussPlnr Solid voussoir blocks from division planes
SprT / SprW Springer generation (trapezoid or wall-based)
ArcH / CatH / ParH Utilities: create arc, catenary, or parabola by height

Who it’s for

Architecture studios, students, heritage researchers, digital-fabrication workflows.
If you design vaults, stereotomic geometry, or block-based masonry — Voussoir aims to speed up your process.

Learn more at: https://stbim.arq.up.pt/voussoir_gh/


Get it now

Install via Rhino’s Package Manager → “Voussoir”
or download from → https://www.food4rhino.com/en/app/voussoir?lang=en


Future plans

  • Additional vault types (groin, ribbed, etc.)
  • Parametric joint & block-pattern control
  • UI improvements for streamlined vault design

Feedback, bug reports, or feature requests are welcome.



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This plugin is one of the products of the research on steretomy, of which you can also visit this page: https://ssc.arq.up.pt/