Added rounded_top_rectangle().

readme.md

@@ -6728,6 +6728,7 @@ Cylinder with a rounded end.
 |:--- |:--- |
 | `rounded_corner(r, h, r2, ir = 0)` | 2D version |
 | `rounded_cylinder(r, h, r2, ir = 0, angle = 360)` | Rounded cylinder given radius `r`, height `h`, optional internal radius `ir` and optional `angle` |
+| `rounded_top_rectangle(size, r, r2)` | Make a rounded rectangle with a rounded top edge |
 
 ![rounded_cylinder](tests/png/rounded_cylinder.png)
 

tests/rounded_cylinder.scad

@@ -27,6 +27,9 @@ module rounded_cylinders() {
 
     translate([30, 10])
         rounded_cylinder(10, 20, 3, 5, 270);
+
+    translate([65, 10])
+        rounded_top_rectangle([30, 20, 5], 3, 2);
 }
 
 rounded_cylinders();

utils/rounded_cylinder.scad

@@ -45,3 +45,22 @@ module rounded_cylinder(r, h, r2, ir = 0, angle = 360) //! Rounded cylinder give
     rotate_extrude(angle = angle)
         rounded_corner(r, h, r2, ir);
 }
+
+module rounded_top_rectangle(size, r, r2) { //! Make a rounded rectangle with a rounded top edge
+    hull() {
+        translate([size.x / 2 - r, size.y / 2 - r])
+            rounded_cylinder(r = r, h = size.z, r2 = r2, angle = 90);
+
+        translate([-size.x / 2 + r, size.y / 2 - r])
+            rotate(90)
+                rounded_cylinder(r = r, h = size.z, r2 = r2, angle = 90);
+
+        translate([-size.x / 2 + r, -size.y / 2 + r])
+            rotate(180)
+                rounded_cylinder(r = r, h = size.z, r2 = r2, angle = 90);
+
+        translate([size.x / 2 - r, -size.y / 2 + r])
+            rotate(270)
+                rounded_cylinder(r = r, h = size.z, r2 = r2, angle = 90);
+    }
+}