use sphere for side holder cuts, so no supports needed

planter.py

@@ -28,8 +28,9 @@ result = Workplane().polyhedron(*outer_poly)
 
 holder_angle_offset = 20
 
+
 result = (
-    result.workplane(offset=-38)
+    result.workplane(offset=-35)
     .makePolygon(
         regularPolygon(
             nSides=4,
@@ -40,7 +41,7 @@ result = (
         forConstruction=True,
     )
     .vertices()
-    .cylinder(10, 7, combine="cut")
+    .sphere(8, combine="cut")
 )
 
 cone = cq.Solid.makeCone(planter_radius, 33, planter_height + 95)