Openscad

brew install openscad

# Generate a single preview image
./tools/preview.sh model.scad output.png [--camera=x,y,z,tx,ty,tz,dist] [--size=800x600]

# Generate multi-angle preview (front, back, left, right, top, iso)
./tools/multi-preview.sh model.scad output_dir/

# Export to STL for 3D printing
./tools/export-stl.sh model.scad output.stl [-D 'param=value']

# Extract customizable parameters from an OpenSCAD file
./tools/extract-params.sh model.scad

# Check for syntax errors and warnings
./tools/validate.sh model.scad

// Customizable parameters
wall_thickness = 2;        // [1:0.5:5] Wall thickness in mm
width = 50;                // [20:100] Width in mm
height = 30;               // [10:80] Height in mm
rounded = true;            // Add rounded corners

// Model code below
module main_shape() {
    if (rounded) {
        minkowski() {
            cube([width - 4, width - 4, height - 2]);
            sphere(r = 2);
        }
    } else {
        cube([width, width, height]);
    }
}

difference() {
    main_shape();
    translate([wall_thickness, wall_thickness, wall_thickness])
        scale([1 - 2*wall_thickness/width, 1 - 2*wall_thickness/width, 1])
        main_shape();
}

./tools/validate.sh model.scad

./tools/multi-preview.sh model.scad ./previews/

./tools/export-stl.sh model.scad output.stl
# With custom parameters:
./tools/export-stl.sh model.scad output.stl -D 'width=60' -D 'height=40'

{
  "name": "Model Name",
  "description": "Description for MakerWorld",
  "parameters": [...],
  "tags": ["functional", "container", "organizer"]
}

# 1. Create the model (write .scad file)

# 2. Validate syntax
./tools/validate.sh box.scad

# 3. Generate multi-angle previews
./tools/multi-preview.sh box.scad ./previews/

# 4. IMPORTANT: View and validate ALL preview images
#    Use the read tool on each PNG file to visually inspect:
#    - previews/box_front.png
#    - previews/box_back.png
#    - previews/box_left.png
#    - previews/box_right.png
#    - previews/box_top.png
#    - previews/box_iso.png
#    Look for geometry issues, misalignments, or unexpected results.
#    If anything looks wrong, go back to step 1 and fix it!

# 5. Extract and review parameters
./tools/extract-params.sh box.scad

# 6. Export STL with default parameters
./tools/export-stl.sh box.scad box.stl

# 7. Export STL with custom parameters
./tools/export-stl.sh box.scad box_large.stl -D 'width=80' -D 'height=60'

cube([x, y, z]);
sphere(r = radius);
cylinder(h = height, r = radius);
cylinder(h = height, r1 = bottom_r, r2 = top_r);  // cone

translate([x, y, z]) object();
rotate([rx, ry, rz]) object();
scale([sx, sy, sz]) object();
mirror([x, y, z]) object();

union() { a(); b(); }        // combine
difference() { a(); b(); }   // subtract b from a
intersection() { a(); b(); } // overlap only

linear_extrude(height) 2d_shape();
rotate_extrude() 2d_shape();
hull() { objects(); }        // convex hull
minkowski() { a(); b(); }    // minkowski sum (rounding)

circle(r = radius);
square([x, y]);
polygon(points = [[x1,y1], [x2,y2], ...]);
text("string", size = 10);