add cutout at the bottom for screw so it sits flat

planter.py

@@ -99,27 +99,29 @@ screw = ButtonHeadScrew(
     size="M16-2", fastener_type="iso7380_1", length=10 * MM, simple=simple
 )
 
+bottom_radius = planter_radius / 1.85
+
 scaled_screw = screw.scale(0.90)
 
 screw_result = (
     Workplane()
-    .makePolygon(star(outerRadius=22, innerRadius=13, n=8))
-    .extrude(10)
+    .makePolygon(star(outerRadius=bottom_radius / 4.5, innerRadius=13, n=8))
+    .extrude(8)
     .union(scaled_screw)
 )
 
 result = result.workplane(offset=planter_height / 2).cylinder(80, 65, combine="cut")
 
-result = (
-    result.workplane(offset=(planter_height / 2) - 27)
-    .makePolygon(
-        regularPolygon(
+bottom_polygon = regularPolygon(
     nSides=11,
-            radius=planter_radius / 1.85,
+    radius=bottom_radius,
     thetaStart=holder_angle_offset,
     thetaEnd=360 + holder_angle_offset,
-        )
-    )
+)
+
+result = (
+    result.workplane(offset=(planter_height / 2) - 27)
+    .makePolygon(bottom_polygon)
     .extrude(10)
 )
 
@@ -138,6 +140,16 @@ cut_tapered = Workplane().union(tapered_circle).cut(tapered_circle_inner)
 
 result = result.union(cut_tapered)
 
+result = (
+    result.workplane(offset=(planter_height / 2) - 25)
+    .makePolygon(bottom_polygon)
+    .extrude(5)
+)
+
+result = result.workplane(offset=(planter_height / 2) - 25).cylinder(
+    8, bottom_radius / 3, combine="cut"
+)
+
 assembly = cq.Assembly()
 
 assembly.add(screw_result, loc=cq.Location((0, 0, 0)))