flower pot + generation script

.gitignore

@@ -0,0 +1 @@
+stl/

flower_pot.py

@@ -0,0 +1,79 @@
+#!/bin/python3
+from __future__ import annotations
+
+import subprocess
+import sys
+from pathlib import Path
+
+
+BASE_DIR = Path(__file__).resolve().parent
+SCAD_DIR = BASE_DIR / "flower_pot"
+OUT_DIR = BASE_DIR / "stl"
+
+
+def ask_float(prompt: str) -> float:
+    while True:
+        try:
+            value = float(input(prompt).strip())
+            if value <= 0:
+                print("Please enter a positive number.")
+                continue
+            return value
+        except ValueError:
+            print("Please enter a valid number.")
+
+
+def render_scad(scad_file: Path, out_file: Path, base_radius: float, wall_height: float, wall_height_tray: float) -> None:
+    cmd = (
+        f'openscad '
+        f'-D base_radius={base_radius} '
+        f'-D wall_height={wall_height} '
+        f'-D wall_height_tray={wall_height_tray} '
+        f'-o "{out_file}" '
+        f'"{scad_file}"'
+    )
+
+    result = subprocess.run(
+        ["bash", "-lc", cmd],
+        cwd=BASE_DIR,
+        text=True,
+        capture_output=True,
+    )
+
+    if result.returncode != 0:
+        print(f"\nFailed to render {scad_file.name}")
+        if result.stdout:
+            print(result.stdout)
+        if result.stderr:
+            print(result.stderr, file=sys.stderr)
+        raise SystemExit(result.returncode)
+
+    print(f"Generated {out_file}")
+
+
+def main() -> None:
+    if not SCAD_DIR.exists():
+        raise SystemExit(f"Missing SCAD directory: {SCAD_DIR}")
+
+    base_radius = ask_float("Flower pot radius (base_radius) in mm: ")
+    wall_height = ask_float("Flower pot height (wall_height) in mm: ")
+    wall_height_tray = ask_float("Tray height (wall_height_tray) in mm: ")
+
+    OUT_DIR.mkdir(parents=True, exist_ok=True)
+
+    pot_scad = SCAD_DIR / "pot.scad"
+    tray_scad = SCAD_DIR / "tray.scad"
+
+    if not pot_scad.exists():
+        raise SystemExit(f"Missing file: {pot_scad}")
+    if not tray_scad.exists():
+        raise SystemExit(f"Missing file: {tray_scad}")
+
+    render_scad(pot_scad, OUT_DIR / "pot.stl", base_radius, wall_height, wall_height_tray)
+    render_scad(tray_scad, OUT_DIR / "tray.stl", base_radius, wall_height, wall_height_tray)
+
+    print("\nDone.")
+
+
+if __name__ == "__main__":
+    main()

flower_pot/pot.scad

@@ -0,0 +1,67 @@
+// --- Parameters ---
+base_radius = 45;    
+slot_depth = 2;      
+floor_thickness = 1.5; 
+
+total_base_h = slot_depth + floor_thickness;
+
+wall_height = 110;   
+wall_thickness = 1.5;
+flare_angle = 10;    
+
+hole_d = 8;
+slot_width = 8;      
+$fn = 500;            
+
+// --- assembly ---
+difference() {
+    flower_pot_body();
+    // radial slots
+    translate([0, 0, -0.1]) 
+        linear_extrude(height = slot_depth + 0.1)
+            radial_slots_pattern();
+    // drainage holes
+    translate([0, 0, -0.1]) 
+        linear_extrude(height = total_base_h + 0.2)
+            holes_pattern();
+}
+
+// --- modules ---
+module flower_pot_body() {
+    top_x_outer = base_radius + wall_height * tan(flare_angle);
+    top_x_inner = top_x_outer - (wall_thickness / cos(flare_angle));
+    
+    rotate_extrude() {
+        polygon(points = [
+            [0, 0],                               
+            [base_radius, 0],                     
+            [top_x_outer, wall_height + total_base_h], 
+            [top_x_inner, wall_height + total_base_h], 
+            [base_radius - wall_thickness, total_base_h], 
+            [0, total_base_h]                   
+        ]);
+    }
+}
+
+module radial_slots_pattern() {
+    // 6 slots
+    for(a = [0 : 60 : 359]) {
+        rotate([0, 0, a])
+            translate([base_radius / 2, 0, 0])
+                square([base_radius + 5, slot_width], center = true);
+    }
+}
+
+module holes_pattern() {
+    union() {
+        circle(d = hole_d);
+        
+        for(r = [18, 30]) { 
+            for(a = [0 : 60 : 359]) {
+                rotate([0, 0, a]) 
+                    translate([r, 0, 0]) 
+                        circle(d = hole_d);
+            }
+        }
+    }
+}

flower_pot/tray.scad

@@ -1,6 +1,6 @@
 // --- Parameters ---
 base_radius = 55;
-wall_height = 20;
+wall_height_tray = 20;
 thickness = 1.5;
 flare_angle = 20;
 $fn = 500;
@@ -11,8 +11,8 @@ rotate_extrude() {
     polygon(points = [
         [0, 0],
         [base_radius, 0],
-        [base_radius + wall_height * tan(flare_angle), wall_height],
-        [base_radius + wall_height * tan(flare_angle) - (thickness / cos(flare_angle)), wall_height],
+        [base_radius + wall_height_tray * tan(flare_angle), wall_height_tray],
+        [base_radius + wall_height_tray * tan(flare_angle) - (thickness / cos(flare_angle)), wall_height_tray],
         [base_radius - thickness, thickness],
         [0, thickness]
     ]);