Sawfish, because it creates, based on complex triangulated shapes, solid beam and plate geometry with planar sides, which can be sawn using a saw as tool only.

Update - Silkworm is now Open-Source, join us now! https://github.com/ProjectSilkworm/Silkworm   Silkworm is a plugin that translates

Bumblebee is an interoperability library for Microsoft Excel and Grasshopper.

Xylinus Overview Xylinus allows for novel control of 3D printers, generating G code directly from native Rhino and Grasshopper geometries including

A point cloud and 3D scanning library for Grasshopper.

Mouse Rat is a Grasshopper plugin that allows you to select Grasshopper preview meshes directly in the Rhino viewport, using modifier keys.

PRKNG_sqr[Parking Square] is a real-time parking layout calculator on any given site boundaries.

Provides specialized features for yacht/ship design. Adds hull design, hydrostatics, speed/power prediction, weight/cost tracking, and CFD.

Kingfisher is a plug-in for sorting points, curves, and surfaces by coordinate system (X-Y-Z, also curves by their length, and surfaces by their area.

Tools for the design of freeform Timber Plate Structures (TPS

Create your own Virtual Reality experiences and VR meetings for Architecture, Engineering, Construction and Design in seconds

Overview: Description: DTM is a set of Clusters, that allows you to build digital terrain models with ascii grid files. The digital terrain

Stella3D is a plugin developed by Erfan Rezae & Salar Anahid, which simulates the behavior of the particles in a customizable environment.

The Grasshopper plugin ghMath lets you read and execute the calculations defined with sMath mathematical software.

The EllipseCollection.zip file contains six GHPY components to create ellipses from different combinations of points and tangents.

Create minimum surface in grasshopper

gHowl is a set of components which extend Grasshopper's ability to communicate and exchange information with other applications and physical devices

Ibex is a terrain modeling plug-in that interfaces with ASCII files from ArcGIS.

Mondrian inspired 2D composition & neo-plastic 3D form generator

Tetrino (or TetRhino is a .NET wrapper for the TetGen mesh tetrahedralization program.