Automated Vacuum Switch

prusaprinters

<p>Automated vacuum cleaner is device which automatically turns on the cleaner when you turn on e.g. power drill, angle grinder, saw etc.</p><p>AVC has two power outlets and one plug. After connecting Controlled device e.g. Vacuum cleaner into outlet further away from cable and Controlling device e.g. power drill into outlet closer to the cable, connect power cord to the mains power supply.&nbsp;</p><p>By turning on electronic device, microcontroller inside the box detects the current rise and thus turns on the relay which is connected to the power outlet of controlled device (in our case vacuum cleaner).</p><p>You can find automated switches inside pro vacuum cleaners but I wanted to create my own with more features and use it to switch not only cleaning devices but also other devices in many various applications.<br>&nbsp;</p><p>&nbsp;</p><p><strong>* Please be aware that this project contains working with HIGH Voltages. Be careful while making this project and if you are not sure about what you are doing you should always ask certified electrician to help you !!!</strong></p><p><strong>** I do not take any responsibility for possible damages !!!</strong></p><p><strong>*** Be aware that any unprofessional handling with high voltage can harm your health and even kill you !!!</strong></p><p>&nbsp;</p><p>&nbsp;</p><h3><strong>BOM</strong></h3><h4><strong>Printed parts</strong></h4><p><strong>1.&nbsp;</strong> Main Box<br><strong>2.</strong> Box Cover<br><strong>3.</strong> Logo <i>(Can be anything. I chose kaercher logo since I have kaercher vacuum cleaner and wanted it to look alike. ;))</i></p><h4><br><strong>Electronics</strong></h4><p><strong>1.</strong> Relay (250 VAC - 5V - SPST)<br><strong>2.</strong> Current Sensor (ACS 712 - 30A)<br><strong>3.</strong> Control board (Arduino, ESP, Raspberry etc.)<i> I would recommend using Arduino since it is simplest method. I have used ESP because I plan on connecting it to Wi-Fi and adding more features in future.</i><br><strong>4</strong><i><strong>.</strong> </i>2 PCS - power outlet. May vary depending on the type of plug you are using in your country.<br><strong>5.</strong> Power cord with plug. <i>I would recommend using flexible wire.</i><br><strong>6.</strong> Wago terminal block 4pin or equivalent<br><strong>7.</strong> 5V 1A power supply<br>&nbsp;</p><h4><strong>Fasteners</strong></h4><p><strong>1.</strong> 10 M4x15mm screws<br><strong>2.</strong> 10 M4 nuts<br><strong>3.</strong> 4 M3 threaded inserts - <i>for Box Cover plate</i><br><strong>4.</strong> 4 M3x8 mm screws<br><strong>5.</strong> 2 M4x12 mm washers<br>&nbsp;</p><h4><strong>Mechanical / other</strong></h4><p><strong>1.</strong> Strain relief connector for power cable<br><strong>2.</strong> Climbing webbing strip or any strip suitable for holder 20 x 1.5 x 200 mm<br><strong>3.</strong> Faston crimp connectors<br>&nbsp;</p><h3><strong>Assembly&nbsp;</strong></h3><h4><strong>Printing parts</strong></h4><p>Printed on <strong>PRUSA i3 MK3S+</strong></p><p>I have printed all parts in PLA but other materials can be used as well. Especially if you want to use it at work it would be better idea to print from more durable filaments.&nbsp;<br><br>No supports nor brim are needed if you have correctly calibrated printer.</p><p>I have used ironing function for logo.</p><h4><strong>Mechanical assembly</strong></h4><p>1. Push M3 inserts inside the box<br>2. Attach holding strip using M4 screws and nuts<br>3. Attach power outlets.&nbsp;<br>4. Connect power cord with strain relief.<br>5. Connect all wires according to the schematic. (Can be found at instructables)<br>6. Make sure everything is glued and won't move around.&nbsp;<br>7. Upload SW to your microcontroller.<br>8. Close the lid and test the device.&nbsp;</p><h4>Software</h4><p>I have uploaded the software to Github: <a href="https://gist.github.com/SamuelGulas/a21619af9fd5ffddb90e014c64193fff#file-autoshopvacswitch-ino">github.com/SamuelGulas/AutoShopVacSwitch.rar</a><br>Code was written in Clion Platformio. If you are using Arduino IDE, look for file src/main.cpp</p><h4><strong>Instructables</strong></h4><p>You can also find this project as instructable at: <a href="https://www.instructables.com/Automated-Vacuum-Switch/">instructables.com/AutoShopVacSwitch</a></p><h3><strong>License</strong></h3><p>The design files are published as-is, CC-0 / no rights reserved. Attribution when used would be nice, but is not required ;) Happy printing and developing.</p>