diff --git a/src2/main/mesh.js b/src2/main/mesh.js
index a3ec115c..0dda69ad 100644
--- a/src2/main/mesh.js
+++ b/src2/main/mesh.js
@@ -373,7 +373,7 @@ function space_init(data) {
         let obj = int?.object;
         if (obj) api.selection.drag({ start: int.object });
         if (obj) obj.sketch_item?.sketch.drag({ start: int.object });
-        return event?.altKey ? undefined : api.objects(selection.count() ? true : false);
+        return selection.count() ? api.objects(true) : undefined;
     });
 
     // called two ways:
diff --git a/src2/mesh/build.js b/src2/mesh/build.js
index 05862ac8..35f2a210 100644
--- a/src2/mesh/build.js
+++ b/src2/mesh/build.js
@@ -442,6 +442,7 @@ function ui_build() {
             div({ class: "menu-items" }, [
                 menu_item('Bounds', () => { selection.boundsBox({ toggle: true }) }, 'B'),
                 menu_item('Normals', () => { api.normals() }, 'N'),
+                hr(),
                 menu_item('WireEdges', () => { api.wireedges() }, 'W'),
                 menu_item('WireFaces', () => { api.wireframe() }, [ 'bi-shift', 'W' ]),
                 hr(),
diff --git a/src2/mesh/history.js b/src2/mesh/history.js
index 0e922593..209e7f8d 100644
--- a/src2/mesh/history.js
+++ b/src2/mesh/history.js
@@ -78,6 +78,7 @@ class History {
     }
 
     do(type, data) {
+        console.log({ type, data });
         switch (type) {
             case 'move': {
                 let { set, dx, dy, dz } = data;
diff --git a/src2/mesh/model.js b/src2/mesh/model.js
index 1627e593..65d5a237 100644
--- a/src2/mesh/model.js
+++ b/src2/mesh/model.js
@@ -169,7 +169,6 @@ class MeshModel extends meshObject {
     qrotate(quaternion) {
         this.log('model-rotate', quaternion.toArray());
         this.geometry.applyQuaternion(quaternion);
-        this.geometry._model_invalid = true;
         this.updateBounds();
     }
 
@@ -177,7 +176,6 @@ class MeshModel extends meshObject {
         if (x === 1 && y === 1 && z === 1) return;
         this.log('model-scale', ...arguments, this.bounds);
         this.geometry.scale(x, y, z);
-        this.geometry._model_invalid = true;
         this.updateBounds();
     }
 
@@ -185,7 +183,6 @@ class MeshModel extends meshObject {
         if (!(x || y || z)) return;
         this.log('model-translate', ...arguments);
         this.geometry.translate(x, y, z);
-        this.geometry._model_invalid = true;
         this.updateBounds();
     }
 
@@ -237,8 +234,10 @@ class MeshModel extends meshObject {
     // when geometry updates, recompute bounds for ray intersections
     // and sync data to worker and indexed db
     updateBounds() {
-        if (this._wire)
-        this._wire.geometry.attributes.position.needsUpdate = true;
+        if (this._wire) {
+            this._wire.geometry.attributes.position.needsUpdate = true;
+            this.updateWireEdges();
+        }
         this.attributes.position.needsUpdate = true;
         this.geometry.computeBoundingBox();
         this.geometry.computeBoundingSphere();
@@ -307,10 +306,12 @@ class MeshModel extends meshObject {
         this.log('reload');
         let was = this.wireframe(false);
         let geo = this.mesh.geometry;
+        const oldGeo = geo;
+        geo = new BufferGeometry();
         geo.setAttribute('position', new BufferAttribute(vertices, 3));
-        // signal util.box3expand that geometry changed
-        geo._model_invalid = true;
         geo.computeVertexNormals();
+        this.mesh.geometry = geo;
+        oldGeo.dispose();
         // restore wireframe state
         this.wireframe(was);
         // fixup normals
@@ -443,19 +444,22 @@ class MeshModel extends meshObject {
         if (bool.toggle) {
             bool = !was;
         }
-        // no change
         if (was === bool) {
             return was;
         }
         if (was) {
             this.mesh.remove(this._wire);
-            this._wire?.geometry.dispose();
+            if (this._wire) {
+                this._wire.geometry.dispose();
+                this._wire.material.dispose();
+            }
             this._wire = undefined;
             this.opacity({restore: true});
         }
         if (bool && opt.edges) {
             let edges = new THREE.EdgesGeometry(this.mesh.geometry, opt.edges);
             this._wire = new THREE.LineSegments(edges, materials.wireline);
+            this._wire._edges = opt.edges;
             this.mesh.add(this._wire);
             this.opacity({temp: opt.opacity || 0.15});
         } else if (bool) {
@@ -467,6 +471,15 @@ class MeshModel extends meshObject {
         return was;
     }
 
+    updateWireEdges() {
+        if (this._wire?.isLineSegments) {
+            const newEdges = new THREE.EdgesGeometry(this.mesh.geometry, this._wire._edges);
+            this._wire.geometry.dispose();
+            this._wire.material.dispose();
+            this._wire.geometry = newEdges;
+        }
+    }
+
     normals(bool) {
         let was = this._norm ? true : false;
         if (bool === undefined) {
@@ -574,6 +587,25 @@ class MeshModel extends meshObject {
             this.group = undefined;
             this.removed = 'pending';
         } else {
+            // Clean up geometries and materials
+            if (this._wire) {
+                this._wire.geometry.dispose();
+                this._wire.material.dispose();
+                this._wire = undefined;
+            }
+            if (this._norm) {
+                this._norm.geometry.dispose();
+                this._norm.material.dispose();
+                this._norm = undefined;
+            }
+            if (this.mesh) {
+                this.mesh.geometry.dispose();
+                if (Array.isArray(this.mesh.material)) {
+                    this.mesh.material.forEach(m => m.dispose());
+                } else {
+                    this.mesh.material.dispose();
+                }
+            }
             // manage lifecycle with worker, mesh app caches, etc
             this.destroy();
             // tag removed for debugging