diff --git a/gridfinity-rebuilt-baseplate.scad b/gridfinity-rebuilt-baseplate.scad
index b06496a..bd3885c 100644
--- a/gridfinity-rebuilt-baseplate.scad
+++ b/gridfinity-rebuilt-baseplate.scad
@@ -321,7 +321,7 @@ module baseplate_lip(height=0, width=l_grid, length=l_grid) {
 
     additional_height = height + BASEPLATE_CLEARANCE_HEIGHT;
 
-    sweep_rounded(width-2*BASEPLATE_OUTSIDE_RADIUS, length-2*BASEPLATE_OUTSIDE_RADIUS)
+    sweep_rounded([width-2*BASEPLATE_OUTSIDE_RADIUS, length-2*BASEPLATE_OUTSIDE_RADIUS])
     translate([translation_x, additional_height, 0])
     polygon(concat(BASEPLATE_LIP, [
         [0, -additional_height],
diff --git a/src/core/gridfinity-rebuilt-utility.scad b/src/core/gridfinity-rebuilt-utility.scad
index 9084fb3..0f0c38a 100644
--- a/src/core/gridfinity-rebuilt-utility.scad
+++ b/src/core/gridfinity-rebuilt-utility.scad
@@ -324,7 +324,7 @@ module block_base(hole_options, off=0, size=[BASE_SIZE, BASE_SIZE], thumbscrew=f
     render(convexity = 2)
     difference() {
         union() {
-            sweep_rounded(base_profile_size.x, base_profile_size.y)
+            sweep_rounded(base_profile_size)
             translate([translation_x, 0, 0])
             polygon(BASE_PROFILE);
 
@@ -448,7 +448,7 @@ module profile_wall2(height_mm) {
 
 module block_wall(gx, gy, l) {
     translate([0,0,h_base])
-    sweep_rounded(gx*l-2*r_base-0.5-0.001, gy*l-2*r_base-0.5-0.001)
+    sweep_rounded([gx*l-2*r_base-0.5-0.001, gy*l-2*r_base-0.5-0.001])
     children();
 }
 
diff --git a/src/helpers/generic-helpers.scad b/src/helpers/generic-helpers.scad
index d8e3a25..3c1a96e 100644
--- a/src/helpers/generic-helpers.scad
+++ b/src/helpers/generic-helpers.scad
@@ -175,11 +175,21 @@ function affine_scale(vector) = [
 
 /**
  * @brief Create a rectangle with rounded corners by sweeping a 2d object along a path.
- *        Centered on origin.
+ * @Details Centered on origin.
+ *          Result is on the X,Y plane.
+ *          Expects children to be a 2D shape in Quardrant 1 of the X,Y plane.
+ * @param size Dimensions of the resulting object.
+ *             Either a single number or [width, length]
  */
-module sweep_rounded(width=10, length=10) {
-    assert(width > 0 && length > 0);
+module sweep_rounded(size) {
+    assert((is_num(size) && size > 0) || (
+        is_list(size) && len(size) == 2 &&
+        is_num(size.x) && size.x > 0 && is_num(size.y) && size.y > 0
+        )
+    );
 
+    width = is_num(size) ? size : size.x;
+    length = is_num(size) ? size : size.y;
     half_width = width/2;
     half_length = length/2;
     path_points = [