diff --git a/crates/fj-kernel/src/algorithms/sweep.rs b/crates/fj-kernel/src/algorithms/sweep.rs
index d93883c01..3dad26b5d 100644
--- a/crates/fj-kernel/src/algorithms/sweep.rs
+++ b/crates/fj-kernel/src/algorithms/sweep.rs
@@ -154,7 +154,7 @@ mod tests {
 
     use crate::{
         algorithms::Tolerance,
-        geometry::{Surface, SweptCurve},
+        geometry::Surface,
         shape::{Handle, Shape},
         topology::{Cycle, Edge, Face},
     };
@@ -230,8 +230,7 @@ mod tests {
 
             let cycles = shape.insert(Cycle::new(vec![ab, bc, ca]))?;
 
-            let surface =
-                Surface::SweptCurve(SweptCurve::plane_from_points([a, b, c]));
+            let surface = Surface::plane_from_points([a, b, c]);
             let surface = if reverse { surface.reverse() } else { surface };
             let surface = shape.insert(surface)?;
 
diff --git a/crates/fj-kernel/src/geometry/surfaces/mod.rs b/crates/fj-kernel/src/geometry/surfaces/mod.rs
index b71a5dc77..219864dcd 100644
--- a/crates/fj-kernel/src/geometry/surfaces/mod.rs
+++ b/crates/fj-kernel/src/geometry/surfaces/mod.rs
@@ -2,7 +2,7 @@ pub mod swept;
 
 pub use self::swept::SweptCurve;
 
-use fj_math::{Point, Transform, Vector};
+use fj_math::{Line, Point, Transform, Vector};
 
 use crate::geometry;
 
@@ -40,6 +40,16 @@ impl Surface {
         })
     }
 
+    /// Construct a plane from 3 points
+    pub fn plane_from_points(points: [impl Into<Point<3>>; 3]) -> Self {
+        let [a, b, c] = points.map(Into::into);
+
+        let curve = Curve::Line(Line::from_points([a, b]));
+        let path = c - a;
+
+        Self::SweptCurve(SweptCurve { curve, path })
+    }
+
     /// Create a new instance that is reversed
     #[must_use]
     pub fn reverse(self) -> Self {
diff --git a/crates/fj-kernel/src/geometry/surfaces/swept.rs b/crates/fj-kernel/src/geometry/surfaces/swept.rs
index ca5bdfd2a..d3458126f 100644
--- a/crates/fj-kernel/src/geometry/surfaces/swept.rs
+++ b/crates/fj-kernel/src/geometry/surfaces/swept.rs
@@ -13,15 +13,6 @@ pub struct SweptCurve {
 }
 
 impl SweptCurve {
-    /// Construct a plane from 3 points
-    #[cfg(test)]
-    pub fn plane_from_points([a, b, c]: [Point<3>; 3]) -> Self {
-        let curve = Curve::Line(Line::from_points([a, b]));
-        let path = c - a;
-
-        Self { curve, path }
-    }
-
     /// Create a new instance that is reversed
     #[must_use]
     pub fn reverse(mut self) -> Self {