WiFI QR Code Sign

prusaprinters

<p>This is a WiFi sign with a stand that you can use to share your WiFi hotspot SSID and passcode with your guests. Most iOS and Android devices should be capable of interpreting the QR code and will connect to the WiFi network without manual selection of the hotspot or manual entry of the passcode.&nbsp;</p><p>Please note that the model files are provided as examples only. To make your own sign you will need to copy the Tinkercad project to your Tinkercad profile and add your own QR code. The QR code in the model files will only be useful to you if you come to visit me :-)</p><p>Also note that your WiFi SSID and passcode are available to anyone who has the QR code. This is not a major security risk but it is something that you should know.&nbsp;</p><h4><strong>To make your own sign:</strong></h4><ol><li>Generate a QR code for your hotspot SSID and passcode. I used iOS Shortcuts with the “QR Your Wi-Fi” shortcut which you can search for in the Shortcuts Gallery or click here: <a href="https://www.icloud.com/shortcuts/533cefbdfb404896be51e98ae3570ae9">https://www.icloud.com/shortcuts/533cefbdfb404896be51e98ae3570ae9</a>. There are also plenty of web sites that purport to generate WiFi QR codes but in my testing I couldn't find any that generate codes that work. YMMV.</li><li>It's a very good idea to test your QR code before you print the sign. Try deleting your home network from your device (e.g. “Forget this Network”) and then scan the QR code to make sure it will get a new device on your network.</li><li>Convert the QR code bitmap to SVG format. I use Inkscape to do bitmap to SVG conversions but there are plenty of other online and app options.</li><li>Copy this Tinkercad file into your Tinkercad profile and open it as a project: <a href="https://www.tinkercad.com/things/d68DVV0rjMC.">https://www.tinkercad.com/things/d68DVV0rjMC.</a> First, take a look at how the sign is designed, then delete my QR code from the project and import the QR code SVG for your WiFi into the project. Resize and center the QR code so it fits in the space above the WiFi icon on the sign part. In my sign this works out to be approximately 64mm^2. Set the height of the QR code object such that it extends 1mm above the surface of the sign.&nbsp;</li><li>My sign uses Prusaslicer's color change option. You will need to print the sign and stand separately to use color change since the stand is thicker (taller) than the sign. I used 20mm Quality with white PLA filament and 5% infill for the sign and the stand, and switched to black PLA for the color change on the sign. The sign part is thin enough that you may actually want to not use infill (aka 100% infill). I think the sign will actually print faster without it.&nbsp;</li><li>Slice the sign part and use the layer slider in Prusaslicer to select the first layer where the QR code and WiFi icon appear, then click the “+” sign on the slider to set a color change at this layer and re-slice. Use the layer slider to double check the color change point. Once the sign is complete, print the stand.</li><li>Once both parts are finished the sign should friction fit securely into the angled slot on the stand. You can add a couple of drops of CA glue to make it permanent.&nbsp;</li></ol><p>Other ideas: You can resize the sign and print it with embedded magnets to attach it to your refrigerator door, or you can mount it to the wall in a guest room. The sign would also be very useful in an AirBNB, a guest room, hotels, restaurants and other places.&nbsp;</p>