diff --git a/src/drawArc.js b/src/drawArc.js
index 2218a1a..586f5b0 100644
--- a/src/drawArc.js
+++ b/src/drawArc.js
@@ -122,6 +122,7 @@ export function drawArc4(mouseLoc, toPush) {
     points
   );
   arc.geometry.attributes.position.needsUpdate = true;
+  arc.geometry.computeBoundingSphere()
   arc.userData.ccw = ccw;
 
   return ccw
diff --git a/src/drawEvents.js b/src/drawEvents.js
index c745409..64ec487 100644
--- a/src/drawEvents.js
+++ b/src/drawEvents.js
@@ -33,6 +33,7 @@ export function drawOnClick1(e) {
 
     } else {
 
+      console.log(this.hovered)
       if (this.hovered.length) {
 
         this.constraints.set(++this.c_id,  //??? why incremennt before not after
@@ -41,6 +42,8 @@ export function drawOnClick1(e) {
             [this.hovered[this.hovered.length - 1].name, this.toPush[0].name, -1, -1]
           ]
         )
+        this.hovered[this.hovered.length - 1].userData.constraints.push(this.c_id)
+        this.toPush[0].userData.constraints.push(this.c_id)
         this.updateOtherBuffers()
   
       }
@@ -59,6 +62,8 @@ export function drawOnClick1(e) {
           [this.hovered[this.hovered.length - 1].name, this.toPush[0].name, -1, -1]
         ]
       )
+      this.hovered[this.hovered.length - 1].userData.constraints.push(this.c_id)
+      this.toPush[0].userData.constraints.push(this.c_id)
       this.updateOtherBuffers()
 
     }
@@ -110,11 +115,11 @@ export function drawOnClick2(e) {
   // a this.mode == "" will prevent event chain from persisisting
   if (this.mode == "line") {
 
-    if (this.hovered.length >= 2) {
+    if (this.hovered.length>=2) {
       this.constraints.set(++this.c_id,  //??? why incremennt before not after
         [
           'points_coincident', -1,
-          [this.hovered[this.hovered.length - 2].name, this.hovered[this.hovered.length - 1].name, -1, -1]
+          [this.hovered[this.hovered.length - 2].name, this.toPush[1].name, -1, -1]
         ]
       )
       this.updateOtherBuffers()
@@ -127,13 +132,12 @@ export function drawOnClick2(e) {
   } else if (this.mode == "point") {
     this.drawOnClick1(e)
   } else if (this.mode == "arc") {
-    this.snap = false
 
-    if (this.hovered.length >= 2) {
+    if (this.hovered.length>=2) {
       this.constraints.set(++this.c_id,  //??? why incremennt before not after
         [
           'points_coincident', -1,
-          [this.hovered[this.hovered.length - 2].name, this.hovered[this.hovered.length - 1].name, -1, -1]
+          [this.hovered[this.hovered.length - 2].name, this.toPush[1].name, -1, -1]
         ]
       )
       this.updateOtherBuffers()
diff --git a/src/mouseEvents.js b/src/mouseEvents.js
index 36bd547..763e574 100644
--- a/src/mouseEvents.js
+++ b/src/mouseEvents.js
@@ -1,6 +1,7 @@
 import * as THREE from '../node_modules/three/src/Three';
 import { raycaster, setHover } from './shared';
 import { onDimMoveEnd } from './drawDimension'
+import { connectAdvanced } from 'react-redux';
 
 let ptLoc
 
@@ -18,7 +19,7 @@ export function onHover(e) {
 
   let hoverPts;
 
-  
+
   if (this.obj3d.userData.type != 'sketch') {
     this.selpoints[0].visible = false // hide selpoint[0] before each redraw
     raycaster.layers.set(1)
@@ -34,7 +35,7 @@ export function onHover(e) {
 
   const thresh = this.snap ? 1 : 0.0001
   if (hoverPts.length) {
-    console.log('here', hoverPts)
+    // console.log('here', hoverPts)
     let minDist = Infinity;
     for (let i = 0; i < hoverPts.length; i++) {
       if (!hoverPts[i].distanceToRay) continue;
@@ -70,9 +71,14 @@ export function onHover(e) {
       for (let x = 0; x < idx.length; x++) {
         let obj = hoverPts[idx[x]].object
 
-        // if (!this.snap || (this.snap && x < idx.length-1) ) {
+        if (this.snap) {
+          if (idx.length==1 || x != idx.length - 1) {
+            setHover(obj, 1, false)
+          }
+        } else {
           setHover(obj, 1, false)
-        // }
+        }
+
 
         if (this.obj3d.userData.type != 'sketch' && obj.userData.type == 'point') {
           ptLoc = obj.geometry.attributes.position.array