seedling tray: add water tray and pressing tool

seedling_tray.py

@@ -20,28 +20,30 @@ def render_scad(
     rows: int,
     cell_size: float,
     tray_height: float,
+    water_tray_height: float,
     render_mode: str,
 ) -> None:
-    cmd = (
-        f'openscad '
-        f'-D cols={cols} '
-        f'-D rows={rows} '
-        f'-D cell_size={cell_size} '
-        f'-D tray_height={tray_height} '
-        f'-D \'render_mode="{render_mode}"\' '
-        f'-o "{out_file}" '
-        f'"{scad_file}"'
-    )
+    cmd = [
+        "openscad",
+        "-D", f"cols={cols}",
+        "-D", f"rows={rows}",
+        "-D", f"cell_size={cell_size}",
+        "-D", f"tray_height={tray_height}",
+        "-D", f"water_tray_height={water_tray_height}",
+        "-D", f'render_mode="{render_mode}"',
+        "-o", str(out_file),
+        str(scad_file),
+    ]
 
     result = subprocess.run(
-        ["bash", "-lc", cmd],
+        cmd,
         cwd=BASE_DIR,
         text=True,
         capture_output=True,
     )
 
     if result.returncode != 0:
-        print(f"\nFailed to render {scad_file.name}")
+        print(f"\nFailed to render {scad_file.name} ({render_mode})")
         if result.stdout:
             print(result.stdout)
         if result.stderr:
@@ -61,6 +63,7 @@ def main() -> None:
     rows = ask_int("Number of rows (rows): ")
     cell_size = ask_float("Inner cell size in mm (cell_size): ")
     tray_height = ask_float("Tray height in mm (tray_height): ")
+    water_tray_height = ask_float("Water tray wall height in mm (water_tray_height): ")
 
     OUT_DIR.mkdir(parents=True, exist_ok=True)
 
@@ -68,7 +71,7 @@ def main() -> None:
     if not scad_file.exists():
         raise SystemExit(f"Missing file: {scad_file}")
 
-    # Render the tray only
+    # seedling tray
     render_scad(
         scad_file,
         OUT_DIR / "seedlings-tray.stl",
@@ -76,10 +79,11 @@ def main() -> None:
         rows,
         cell_size,
         tray_height,
+        water_tray_height,
         "tray_only",
     )
 
-    # Render all plates in a grid
+    # removable plates
     render_scad(
         scad_file,
         OUT_DIR / "plates.stl",
@@ -87,9 +91,34 @@ def main() -> None:
         rows,
         cell_size,
         tray_height,
+        water_tray_height,
         "plates_only",
     )
 
+    # water tray
+    render_scad(
+        scad_file,
+        OUT_DIR / "water-tray.stl",
+        cols,
+        rows,
+        cell_size,
+        tray_height,
+        water_tray_height,
+        "water_tray_only",
+    )
+
+    # pressing tool
+    render_scad(
+        scad_file,
+        OUT_DIR / "pusher-tool.stl",
+        cols,
+        rows,
+        cell_size,
+        tray_height,
+        water_tray_height,
+        "tool_only",
+    )
+
     print("\nDone.")