diff --git a/documentation/qudio/index.html b/documentation/qudio/index.html
index 8342170..ebeec69 100644
--- a/documentation/qudio/index.html
+++ b/documentation/qudio/index.html
@@ -138,7 +138,7 @@ h2, h3, h4 {
 
 		<ul>
 			<li>JBL On Stage IIIP - can be found on ebay for little money<br/><span style="color:red;">Caution:</span> The older On Stage III with the mini USB port will probably <em>not work!</em> I tried several and they either did not power the Raspberry Pi properly or I had noise issues that I could not resolve.</li>
-			<li>The <a href="https://github.com/tliero/qudio/tree/master/case">case, which consists of four parts</a>. I printed mine in standard PLA.</li>
+			<li>The <a href="https://github.com/tliero/qudio/tree/master/case">case, which consists of four parts</a>. I printed mine in standard PLA. You can also <a href="https://cad.onshape.com/documents/2762d09f63c9b517c9286983/w/eb40037adee1466d85023e8d/e/802477ccf62b15a257cef26e">copy and modify it on OnShape.com</a></li>
 			<li>Raspberry Pi Zero W with a micro SD card a pin header</li>
 			<li><a href="images/IMG_20190122_091336.jpg" data-fancybox="part" data-caption="CJMCU-5102 with 10 k&#8486; resistor">CJMCU-5102 plus a 10 k&#8486; resistor</a>, some PCM5102A based module or any other I2S DAC that is supported by volumio. Search for 'pHAT DAC'. A USB sound card will not work, since the USB port is used by the webcam.</li>
 			<li><a href="images/IMG_20190122_091612.jpg" data-fancybox="part" data-caption="TCRT5000 sensor module">TCRT5000 reflective sensor module</a></li>
@@ -540,12 +540,11 @@ sudo reboot</code></pre>
 Intro-Video
 Live-Bild Kamera-Einstellung
 LED im Case
-Test-QR
-Link zu OnShape https://cad.onshape.com/documents/2762d09f63c9b517c9286983/w/eb40037adee1466d85023e8d/e/802477ccf62b15a257cef26e
 
 deactivate microphone?
 deactivate RasPi LED
-12 mm caps?
+
+helpful commands: tail -f /tmp/qudio.log etc.
 </pre>
 
 	</div>