diff --git a/jspm.config.js b/jspm.config.js
index 504d761..7f91def 100644
--- a/jspm.config.js
+++ b/jspm.config.js
@@ -159,6 +159,7 @@ SystemJS.config({
     "github:*/*.json"
   ],
   map: {
+    "js-yaml": "npm:js-yaml@3.9.0",
     "clipper-js": "github:Doodle3D/clipper-js@1.0.2",
     "three.js": "github:mrdoob/three.js@r83",
     "assert": "npm:jspm-nodelibs-assert@0.2.0",
@@ -421,6 +422,17 @@ SystemJS.config({
       "map": {
         "Breush/clipper-lib": "github:Breush/clipper-lib@patch-1"
       }
+    },
+    "npm:js-yaml@3.9.0": {
+      "map": {
+        "argparse": "npm:argparse@1.0.9",
+        "esprima": "npm:esprima@4.0.0"
+      }
+    },
+    "npm:argparse@1.0.9": {
+      "map": {
+        "sprintf-js": "npm:sprintf-js@1.0.3"
+      }
     }
   }
 });
diff --git a/package.json b/package.json
index 9a267e0..21cd75b 100644
--- a/package.json
+++ b/package.json
@@ -8,6 +8,7 @@
     "dependencies": {
       "Doodle3D/clipper-js": "github:Doodle3D/clipper-js@master",
       "clipper-js": "github:Doodle3D/clipper-js@1.0.2",
+      "js-yaml": "npm:js-yaml@^3.9.0",
       "json": "github:systemjs/plugin-json@^0.1.2",
       "three.js": "github:mrdoob/three.js@r83",
       "worker": "github:casperlamboo/plugin-worker@master"
@@ -77,7 +78,9 @@
       }
     }
   },
-  "dependencies": {},
+  "dependencies": {
+    "js-yaml": "^3.9.0"
+  },
   "devDependencies": {
     "jspm": "^0.17.0-beta.28"
   }
diff --git a/src/Slicer.js b/src/Slicer.js
index e8f4f5b..2fe66ec 100644
--- a/src/Slicer.js
+++ b/src/Slicer.js
@@ -1,4 +1,5 @@
 import * as THREE from 'three.js';
+import Settings from './Settings.js';
 import slice from './sliceActions/slice.js';
 import SlicerWorker from './slicerWorker.js!worker';
 
@@ -28,13 +29,13 @@ export default class {
     return this;
   }
   sliceSync(settings) {
-    return slice(this.geometry, settings);
+    return slice(this.geometry, new Settings(settings));
   }
   slice(settings) {
     const slicerWorker = new SlicerWorker();
 
     const geometry = this.geometry.toJSON();
-    const { config } = settings;
+    const { config } = new Settings(settings);
 
     return new Promise((resolve, reject) => {
       slicerWorker.onerror = reject;
diff --git a/src/index.js b/src/index.js
index 6b0fb50..2f930c2 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,6 +1,18 @@
 import Slicer from './Slicer.js';
-import Settings from './Settings.js';
-import printerSettings from './settings/printer_settings.json!json';
-import userSettings from './settings/user_settings.json!json';
+import defaultSettings from './settings/default.yml!text';
+import printerSettings from './settings/printer.yml!text';
+import materialSettings from './settings/material.yml!text';
+import qualitySettings from './settings/quality.yml!text';
+import yaml from 'js-yaml';
 
-export { Slicer, Settings, printerSettings, userSettings };
+const ds = {
+    base: yaml.safeLoad(defaultSettings),
+    printer: yaml.safeLoad(printerSettings),
+    material: yaml.safeLoad(materialSettings),
+    quality: yaml.safeLoad(qualitySettings)
+};
+
+export { 
+  Slicer, 
+  ds as defaultSettings
+};
diff --git a/src/settings/quality.yml b/src/settings/quality.yml
index 9a823c6..716071d 100644
--- a/src/settings/quality.yml
+++ b/src/settings/quality.yml
@@ -1,6 +1,9 @@
 low:
+  title: "Low"
   layerHeight: .2
 medium:
+  title: "Medium"
   layerHeight: .15
 height:
+  title: "High"
   layerHeight: .1
diff --git a/src/sliceActions/calculateLayersIntersections.js b/src/sliceActions/calculateLayersIntersections.js
index 5187827..f127b2a 100644
--- a/src/sliceActions/calculateLayersIntersections.js
+++ b/src/sliceActions/calculateLayersIntersections.js
@@ -3,7 +3,7 @@ import * as THREE from 'three.js';
 export default function calculateLayersIntersections(lines, settings) {
   console.log('calculating layer intersections');
 
-  const { layerHeight, dimensionsZ } = settings.config;
+  const { layerHeight, dimensions: { z: dimensionsZ } } = settings.config;
 
   const numLayers = Math.floor(dimensionsZ / layerHeight);