diff --git a/src/geo/base.js b/src/geo/base.js
index 8326834e..4a19313b 100644
--- a/src/geo/base.js
+++ b/src/geo/base.js
@@ -465,7 +465,7 @@
     // two with the greatest delta to pass to the earcut algorith, then returns
     // an unwrapped array in the original dimensions
     function triangulate(array, holes, dims) {
-        let narray, d1, d2;
+        let narray;
         if (dims === 2) {
             narray = array;
         } else {
@@ -482,8 +482,7 @@
             for (let i=0; i<dims; i++) {
                 delta[i] = max[i] - min[i];
             }
-            console.log({delta: delta.slice()});
-            let dmax = 0; //d1, d2, dmax = 0;
+            let dmax = 0, d1, d2;
             for (let i=0; i<dims; i++) {
                 if (delta[i] > dmax) {
                     dmax = delta[i];
@@ -511,7 +510,6 @@
                 oa[e++] = array[ ai + j ];
             }
         }
-        console.log({d1, d2, array, narray, ec, oa});
         return oa;
     }
 
diff --git a/src/mesh/api.js b/src/mesh/api.js
index df369b68..4c453e45 100644
--- a/src/mesh/api.js
+++ b/src/mesh/api.js
@@ -405,10 +405,6 @@ let tool = {
                 id: m.id, opt
             }).then(data => {
                 if (data) {
-                    // mesh.api.group.new([new mesh.model({
-                    //     file: `healed`,
-                    //     mesh: data.vertices
-                    // })]).floor().centerXY().setSelected();
                     m.reload(
                         data.vertices,
                         data.indices,
diff --git a/src/mesh/model.js b/src/mesh/model.js
index e56ecf07..8855b71c 100644
--- a/src/mesh/model.js
+++ b/src/mesh/model.js
@@ -162,17 +162,27 @@ mesh.model = class MeshModel extends mesh.object {
             return;
         }
         worker.model_rebuild({
+            mode: opt.mode || 'slice',
             matrix: this.matrix,
             id: this.id
         }).then(data => {
-            let points = [];
-            for (let i=0; i<data.length;) {
-                points.push(new THREE.Vector3(data[i++], data[i++], data[i++]));
+            let { vertices, lines } = data;
+            if (vertices) {
+                mesh.api.group.new([new mesh.model({
+                    file: `healed`,
+                    mesh: data.vertices
+                })]).floor().centerXY().setSelected();
+            }
+            if (lines) {
+                let points = [];
+                for (let i=0; i<lines.length;) {
+                    points.push(new THREE.Vector3(lines[i++], lines[i++], lines[i++]));
+                }
+                let material = new THREE.LineBasicMaterial( { color: 0xdddddd } );
+                let geometry = new THREE.BufferGeometry().setFromPoints(points);
+                let segments = this.lines = new THREE.LineSegments(geometry, material);
+                space.scene.add(segments);
             }
-            let material = new THREE.LineBasicMaterial( { color: 0xdddddd } );
-            let geometry = new THREE.BufferGeometry().setFromPoints(points);
-            let lines = this.lines = new THREE.LineSegments(geometry, material);
-            space.scene.add(lines);
         });
     }
 
diff --git a/src/mesh/work.js b/src/mesh/work.js
index 3fd5103f..140b78c4 100644
--- a/src/mesh/work.js
+++ b/src/mesh/work.js
@@ -245,26 +245,6 @@ let model = {
         let tool = analyze(id, opt);
         log(`${id} | unrolling...`);
         let unrolled = tool.unrolled();
-
-        // log(`${id} | intersecting...`);
-        // let box = new THREE.BoxGeometry(10000, 10000, 10000).attributes.position.array;
-        // box = base.CSG.Solid.fromPositionArray(box);
-        //
-        // let solid = base.CSG.Solid.fromPositionArray(unrolled);
-        // // let inter = box.intersect(solid);
-        // let inter = solid.union(solid.clone());
-        // let ears = inter.polygons
-        //     .map(p => p.vertices.map(v => v.pos))
-        //     .map(a => {
-        //         let pa = a.map( v => [ v.x, v.y, v.z ]).flat().map(v => v.round(2));
-        //         let ec = base.util.triangulate(pa, undefined, 3);
-        //         console.log({pa, ec});
-        //         return ec;
-        //     });//.flat();
-        //
-        // console.log({solid, inter, ears, ef: ears.flat()});
-        // unrolled = ears.flat();
-
         return {
             vertices: unrolled.toFloat32(),
         };
@@ -316,11 +296,30 @@ let model = {
     },
 
     rebuild(data, send) {
-        send.async();
         let { id, matrix, mode } = data;
         log(`${id} | rebuilding...`);
         let points = translate_encode(id, matrix);
         log(`${id} | ${points.length} points`);
+
+        if (mode === 'csg') {
+            log(`${id} | intersecting...`);
+            let box = base.CSG.Solid.fromPositionArray(
+                new THREE.BoxGeometry(3000, 3000, 3000)
+                    .toNonIndexed().attributes.position.array
+            );
+            let solid = base.CSG.Solid.fromPositionArray(points);
+            let solution = box.intersect(solid);
+            let vertices = solution.polygons
+                .map(p => p.vertices.map(v => v.pos))
+                .map(a => {
+                    let pa = a.map( v => [ v.x, v.y, v.z ]).flat();
+                    let ec = base.util.triangulate(pa, undefined, 3);
+                    return ec;
+                }).flat().toFloat32();
+            return { vertices };
+        }
+
+        send.async();
         let layers = [];
         base.slice(points, {
             autoDim: true,
@@ -357,7 +356,7 @@ let model = {
             });
         }).finally(() => {
             log(`${id} | rebuild complete`);
-            send.done(layers);
+            send.done({ lines: layers });
         });;
     }
 };