fix gear shaft diam, log gear pitch when created

src/mesh/api.js

@@ -347,7 +347,7 @@ let add = {
                 h.label('twist angle'),
                 h.input({ value: opt.twist || 0, size: 5, id: "gtwist" }),
                 h.label('shaft diameter'),
-                h.input({ value: opt.shaft || 10, size: 5, id: "gshaft" }),
+                h.input({ value: opt.shaft || 5, size: 5, id: "gshaft" }),
                 h.button({ _: "create", onclick() {
                     gengear(
                         api.modal.bound.gteeth.value,

src/mesh/build.js

@@ -118,7 +118,7 @@ const modal = api.modal = {
 let pinner;
 // transient logging window bottom/left
 const log = api.log = {
-    age: 10000, // age out lines more than 10 seconds old
+    age: 600000, // age out lines more than 10 minutes old
 
     data: [],   // last n messages
 
@@ -187,7 +187,9 @@ const log = api.log = {
 };
 
 // bind endpoint for worker to log in the ui
-gapp.broker.subscribe("mesh.log", log.emit);
+gapp.broker.subscribe("mesh.log", msg => {
+    log.emit(msg);
+});
 
 // welcome dialog
 api.welcome = function(version = "unknown") {

src/mesh/tool.js

@@ -813,6 +813,8 @@ mesh.tool = class MeshTool {
             for (var i = 0; i < numTeeth; i++) {
                 gear.appendAll(rotate(points, -i * 2 * pi / numTeeth));
             }
+
+            mesh.log(`gear pitch radius: ${p.round(3)}`);
         }
 
         return gear;

src/mesh/work.js

@@ -410,7 +410,7 @@ let model = {
             poly.addInner(
                 newPolygon().centerCircle({
                     x:0, y:0, z:0
-                }, shaft, Math.min(20+shaft,100))
+                }, shaft / 2, Math.min(20 + shaft,100))
             );
         }
         let verts = poly.extrude(z || 15);