Here's a simplified open-source software solution for drafting your seastead design. This HTML/JavaScript tool calculates weights for marine aluminum structures, floats, stabilizers, and other components based on your specifications. It outputs results in HTML format for easy web integration. ```html Seastead Draft Design Tool

Seastead Draft Design Tool

⚠️ This is a simplified estimation tool for draft design purposes only. Not for engineering or construction.

Triangle Frame Dimensions

Triangle Length (front to back) (ft):

Triangle Width (ft):

Frame Height (floor to ceiling) (ft):

Railing Height (ft):

Number of Truss Cells (back):

Number of Truss Cells (sides):

Truss Tube Outer Diameter (inches):

Truss Tube Thickness (inches):

Floor and Roof

Floor Thickness (inches):

Roof Thickness (inches):

Living Space

Living Space Length (ft):

Living Space Width (ft):

Living Space Wall Height (ft):

Total Window Area (sq ft):

Living Space Wall Thickness (inches):

Railing

Railing Tube Outer Diameter (inches):

Railing Tube Thickness (inches):

Railing Post Spacing (ft):

Floats (Legs)

Float Length (ft):

Float Chord (ft):

Float Width (ft):

Float Shell Thickness (inches):

Stabilizers

Stabilizer Wing Span (ft):

Stabilizer Wing Chord (ft):

Stabilizer Body Length (ft):

Stabilizer Body Diameter (ft):

Stabilizer Wing Shell Thickness (inches):

Stabilizer Elevator Span (ft):

Stabilizer Elevator Chord (ft):

Stabilizer Elevator Shell Thickness (inches):

Other Components

Solar Panel Weight (lbs/sq ft):

Ladder Weight (lbs/ft):

Thruster Weight (lbs each):

``` ### Key Features: 1. **Triangle Frame Truss**: Calculates Warren truss members with customizable cell divisions 2. **Floor and Roof**: Plate weight calculations for entire triangle area 3. **Living Space**: Walls with window area subtraction 4. **Railing**: Top rail and vertical posts with spacing options 5. **Floats**: Ellipsoidal volume calculations for NACA foil approximation 6. **Stabilizers**: Wing, body, and elevator weights 7. **Other Components**: Solar panels, ladders, and thrusters ### Usage: 1. Copy the code into an `.html` file 2. Open in any web browser 3. Adjust parameters as needed 4. Click "Calculate Weights" to generate results ### Limitations: - Uses simplified geometric approximations (ellipsoids for floats) - Does not account for internal structure, reinforcement, or connections - No structural analysis (stress, stability, etc.) - Displacement estimate assumes 50% submersion For detailed engineering analysis, consider open-source tools like: - **OpenSCAD** (parametric modeling) - **FreeCAD** (structural analysis with BIM workflows) - **CalculiX** (finite element analysis) - **Salome** (CAE platform)