Issue Description
You need to model a bell-shaped roof for a bay window in Archicad, but the standard Roof tool doesn't provide the necessary curved shape. The roof should have a smooth, curved profile that resembles a bell when viewed from the side. How can this be modeled in Archicad?
Solution
To create a bell-shaped roof in Archicad, use the Shell tool with the Revolving geometry method. This approach allows for precise modeling of curved surfaces, making it ideal for this type of roof.
Follow these steps to achieve the desired result:
- Draw the profile of the roof using the Polyline tool.
- Activate the Shell tool, using the revolving geometry method and Detailed construction method.
- Using Magic Wand (Hold space bar to activate), create the shell profile with the polyline you created.
- Archicad will ask you to define the revolved shell center point or the mirroring axis.
- The window Enter the revolution angle will appear. Set it to 180 degrees, for example.
- Once done, proceed to 3D View. Click on one of the nodes at the center line of the half-bell’s rotating axis.
- On the pet palette, select the Slant Axis command then tilt your shell 90 degrees downwards.
With these steps, you’ll have a properly shaped bell roof that fits seamlessly over the bay window. The Shell tool’s flexibility makes it the best choice for curved designs like this, giving you full control over the shape and orientation. If the roof needs further adjustments—like fine-tuning the curve or refining the edges—you can always tweak the shell settings or edit the profile.