diff --git a/.gitignore b/.gitignore
index 53b0e4b..25dcdde 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 
 jspm_packages/*
 example/test.gcode
+node_modules/*
 
 build.js
 
diff --git a/example/app.js b/example/app.js
index c90aeec..4ee2141 100644
--- a/example/app.js
+++ b/example/app.js
@@ -12,7 +12,7 @@ doodle3DManager.addEventListener('boxappeared', ({ box }) => {
 
   box.addEventListener('disconnect', () => {
     console.log('disonnect to box', box);
-  })
+  });
 
   box.addEventListener('update', ({ state }) => {
     console.log(state);
diff --git a/package.json b/package.json
index 51e08e8..40487f4 100644
--- a/package.json
+++ b/package.json
@@ -50,5 +50,8 @@
         }
       }
     }
+  },
+  "dependencies": {
+    "jspm": "^0.17.0-beta.25"
   }
 }
diff --git a/src/api/network.js b/src/api/network.js
index 0348bc2..af15500 100644
--- a/src/api/network.js
+++ b/src/api/network.js
@@ -14,9 +14,7 @@ export default class Network {
     return rest.get(`${ this.api }network/status`);
   }
   assosiate(ssid, phrase, recreate = false) {
-    const data = { ssid, recreate, phrase };
-
-    return rest.post(`${ this.api }network/associate`, data);
+    return rest.post(`${ this.api }network/associate`, { ssid, phrase, recreate });
   }
   disassociate() {
     //not tested
@@ -27,9 +25,7 @@ export default class Network {
     return rest.post(`${ this.api }network/openap`, {});
   }
   remove(ssid) {
-    return rest.post(`${ this.api }network/remove`, {
-      'ssid': ssid
-    });
+    return rest.post(`${ this.api }network/remove`, { ssid });
   }
   signin() {
     return rest.get(`${ this.api }network/signin`);
diff --git a/src/api/printer.js b/src/api/printer.js
index 1d1a53d..47bf979 100644
--- a/src/api/printer.js
+++ b/src/api/printer.js
@@ -20,13 +20,22 @@ export default class Printer {
     return rest.post(`${ this.api }printer/heatup`, {});
   }
   print(gcode = '', first = false, start = false, last) {
-    const data = { gcode, first, start, last };
-
-    return rest.post(`${ this.api }printer/print`, data);
+    return rest.post(`${ this.api }printer/print`, { gcode, first, start, last });
   }
   stop(gcode = '') {
-    const data = { gcode };
+    return rest.post(`${ this.api }printer/stop`, { gcode });
+  }
+  async _sendBatch(gcode, start, index) {
+    try {
+      const response = await this.print(gcode, start, start);
 
-    return rest.post(`${ this.api }printer/stop`, data);
+      console.log(`batch sent: ${ index }`);
+    } catch(error) {
+      console.log(`failed sending batch: ${ index }`);
+
+      await sleep(1000);
+
+      await this._sendBatch(gcode, index);
+    }
   }
 }
diff --git a/src/doodle3dbox.js b/src/doodle3dbox.js
index dfb7da6..fd3c6fe 100644
--- a/src/doodle3dbox.js
+++ b/src/doodle3dbox.js
@@ -33,7 +33,7 @@ export default class Doodle3DBox extends EventDispatcher {
   }
   setAutoUpdate(autoUpdate = true, updateInterval = 1000) {
     this.updateInterval = updateInterval;
-    if (this.autoUpdate === autoUpdate) return;
+    if (this.autoUpdate === autoUpdate) return this;
 
     this.autoUpdate = autoUpdate;
     if (autoUpdate) this._update();
@@ -69,7 +69,7 @@ export default class Doodle3DBox extends EventDispatcher {
 
       // const progress = await this.printer.progress();
 
-      await this._sendBatch(batch, start);
+      await this.printer._sendBatch(batch, start, index);
 
       start = false;
       lastIndex = index + 1; //skip next \n
@@ -92,18 +92,4 @@ export default class Doodle3DBox extends EventDispatcher {
       await sleep(this.updateInterval);
     }
   }
-  async _sendBatch(gcode, start) {
-    try {
-      const response = await this.printer.print(gcode, start, start);
-      // maybe do something with failing response
-
-      console.log(`batch sent: ${ index }`);
-    } catch(error) {
-      console.log(`failed sending batch: ${ index }`);
-
-      await sleep(1000);
-
-      await this._sendBatch(gcode, index);
-    }
-  }
 }
diff --git a/src/doodle3dmanager.js b/src/doodle3dmanager.js
index 46d0615..3b8ddac 100644
--- a/src/doodle3dmanager.js
+++ b/src/doodle3dmanager.js
@@ -18,13 +18,13 @@ export default class Doodle3DManager extends EventDispatcher {
       wifiboxid: 'Node JS Server',
       localip: '127.0.0.1:3000'
     }*/];
-    this.checkNonServerBoxes = false;
+    this.checkNonServerBoxes = true;
 
     this.autoUpdate = false;
   }
   setAutoUpdate(autoUpdate = true, updateInterval = 1000) {
     this.updateInterval = updateInterval;
-    if (this.autoUpdate === autoUpdate) return;
+    if (this.autoUpdate === autoUpdate) return this;
 
     this.autoUpdate = autoUpdate;
     if (autoUpdate) this._update();
@@ -39,12 +39,11 @@ export default class Doodle3DManager extends EventDispatcher {
     }
   }
   async _checkNew() {
-    let boxes;
+    let boxes = [];
     try {
       boxes = await rest.get(`${ this.api }list.php`);
     } catch(error) {
       console.warn('fail connecting to Doodle3D server');
-      return;
     }
 
     if (this.checkNonServerBoxes) boxes = boxes.concat(this.nonServerBoxes);