diff --git a/packages/cadmium/src/main.rs b/packages/cadmium/src/main.rs
index 5afb76fb..ec6fbce2 100644
--- a/packages/cadmium/src/main.rs
+++ b/packages/cadmium/src/main.rs
@@ -17,7 +17,88 @@ use truck_shapeops::{and, or, ShapeOpsCurve, ShapeOpsSurface};
 use truck_topology::{Shell, Solid};
 
 fn main() {
-    topological_naming();
+    // topological_naming();
+    stacked_cubes();
+}
+
+fn stacked_cubes() {
+    let mut el = EvolutionLog::new();
+
+    // Create the Top Plane
+    let top_plane_id = el.append(Operation::CreatePlane {
+        nonce: "the top plane".to_string(),
+    });
+    el.append(Operation::SetPlaneName {
+        plane_id: top_plane_id.clone(),
+        name: "Top".to_string(),
+    });
+    let set_plane = el.append(Operation::SetPlane {
+        plane_id: top_plane_id.clone(),
+        plane: Plane::top(),
+    });
+
+    // Create the sketch
+    let sketch_id = el.append(Operation::CreateSketch {
+        nonce: "top sketch".to_string(),
+    });
+    el.append(Operation::SetSketchName {
+        sketch_id: sketch_id.clone(),
+        name: "Sketch1".to_string(),
+    });
+    el.append(Operation::SetSketchPlane {
+        sketch_id: sketch_id.clone(),
+        plane_id: top_plane_id.clone(),
+    });
+
+    // make a square
+    el.append(Operation::AddSketchLine {
+        sketch_id: sketch_id.clone(),
+        start: (0.0, 0.0),
+        end: (0.0, 100.0),
+    });
+    el.append(Operation::AddSketchLine {
+        sketch_id: sketch_id.clone(),
+        start: (0.0, 100.0),
+        end: (100.0, 100.0),
+    });
+    el.append(Operation::AddSketchLine {
+        sketch_id: sketch_id.clone(),
+        start: (100.0, 100.0),
+        end: (100.0, 0.0),
+    });
+    el.append(Operation::AddSketchLine {
+        sketch_id: sketch_id.clone(),
+        start: (100.0, 0.0),
+        end: (0.0, 0.0),
+    });
+    // Add a handle to pull the extrusion from
+    let handle_id = el.append(Operation::AddSketchHandle {
+        sketch_id: sketch_id.clone(),
+        position: (20.0, 20.0),
+    });
+
+    // extrude the square
+    let extrusion_id = el.append(Operation::CreateExtrusion {
+        nonce: "first extrusion".to_string(),
+    });
+    el.append(Operation::SetExtrusionName {
+        extrusion_id: extrusion_id.clone(),
+        name: "Extrude1".to_string(),
+    });
+    el.append(Operation::SetExtrusionSketch {
+        extrusion_id: extrusion_id.clone(),
+        sketch_id: sketch_id.clone(),
+    });
+    el.append(Operation::SetExtrusionHandles {
+        extrusion_id: extrusion_id.clone(),
+        handles: vec![handle_id.clone()],
+    });
+    el.append(Operation::SetExtrusionDepth {
+        extrusion_id: extrusion_id.clone(),
+        depth: 100.0,
+    });
+
+    el.git_log();
 }
 
 fn topological_naming() {
@@ -204,10 +285,10 @@ fn main_2() {
         extrusion_id: extrusion_id.clone(),
         sketch_id: sketch_id.clone(),
     });
-    let set_ext_clicks_commit = el.append(Operation::SetExtrusionClicks {
-        extrusion_id: extrusion_id.clone(),
-        clicks: vec![(50.0, 50.0)],
-    });
+    // let set_ext_clicks_commit = el.append(Operation::SetExtrusionClicks {
+    //     extrusion_id: extrusion_id.clone(),
+    //     clicks: vec![(50.0, 50.0)],
+    // });
     let finished_rectangle_commit = el.append(Operation::SetExtrusionDepth {
         extrusion_id: extrusion_id.clone(),
         depth: 10.0,
@@ -238,7 +319,7 @@ fn main_2() {
     el.cherry_pick(extrusion_id);
     el.cherry_pick(name_ext_commit);
     el.cherry_pick(set_ext_sketch_commit);
-    el.cherry_pick(set_ext_clicks_commit);
+    // el.cherry_pick(set_ext_clicks_commit);
     let finished_circle_commit = el.cherry_pick(finished_rectangle_commit).unwrap();
     let rotated_circle_commit = el.cherry_pick(rotated_rectangle_commit).unwrap();
 
diff --git a/packages/cadmium/src/oplog/mod.rs b/packages/cadmium/src/oplog/mod.rs
index 91e55fba..e896077f 100644
--- a/packages/cadmium/src/oplog/mod.rs
+++ b/packages/cadmium/src/oplog/mod.rs
@@ -339,9 +339,9 @@ pub enum Operation {
         extrusion_id: Sha,
         sketch_id: Sha,
     },
-    SetExtrusionClicks {
+    SetExtrusionHandles {
         extrusion_id: Sha,
-        clicks: Vec<(f64, f64)>,
+        handles: Vec<Sha>,
     },
     SetExtrusionDepth {
         extrusion_id: Sha,
@@ -417,13 +417,13 @@ impl Operation {
                 extrusion_id,
                 sketch_id,
             } => hasher.update(format!("{extrusion_id}-{sketch_id}").as_bytes()),
-            Operation::SetExtrusionClicks {
+            Operation::SetExtrusionHandles {
                 extrusion_id,
-                clicks,
+                handles,
             } => {
                 hasher.update(format!("{extrusion_id}").as_bytes());
-                for (x, y) in clicks {
-                    hasher.update(format!("{x}-{y}").as_bytes())
+                for sha in handles {
+                    hasher.update(format!("{sha}").as_bytes())
                 }
             }
             Operation::SetExtrusionDepth {
@@ -552,13 +552,13 @@ impl Operation {
                     sketch_id.to_owned()[..num_chars].to_string()
                 )
             }
-            Operation::SetExtrusionClicks {
+            Operation::SetExtrusionHandles {
                 extrusion_id,
-                clicks,
+                handles,
             } => {
                 let mut click_str = String::new();
-                for (x, y) in clicks {
-                    click_str.push_str(&format!("({}, {}) ", x, y));
+                for sha in handles {
+                    click_str.push_str(&format!("{} ", sha.to_owned()[..num_chars].to_string()));
                 }
                 format!(
                     "SetExtrusionClicks: {} {}",