In a 4 part tutorial, Junghwo Park explains how to create a simple 1 storey structure in Karamba & Grasshopper and then export the geometry into Revit using IFC formats in Geometry Gym.
The first two tutorials show how this simple structure of beams and shell can be created in Grasshopper and then analyzed in Karamba.
The third and fourth tutorial explain how Geometry Gym can be used to export the geometry created in Karamba into Revit. See Tutorial 3 & 4 – Export a Shell & Beam Structure to Revit with Geometry Gym.
Part 1 – Create the Geometry in Grasshopper
Part 2 – Input into Karamba
Get the reference files here: KarambaToGGymToRevit
These tutorials use Rhinoceros (Version 5 SR12 64bit), Grasshopper (0.9.0076) & Karamba (1.1.0).