It is a little bit dangerous to let a 3D printer run unattended. 220 degree at the Hotend, a heated printbed, liquid plastic and in my case cheap electrical parts from china... So I wanted to monitor the print process from everywhere and the possibility to shutdown my both printers ... here is my solution ...

If you have only one printer you can use the second plug socket for lighting as example. This construction is also usable as an IPswitch without octoprint, if you want to switch more plugs, you just need more relay and plug sockets ...

If you do not have any experience with electricity, do not do this instructable, a little mistake can be really dangerous ... If you do this instructable, you do it on your own risk !

Step 1: Requirements:


- Raspberry Pi 2||3

- 4 channel relay modul

- 2 * plug sockets

- rubber connector socket with switch and fuseholder

- raspi cam

- raspi cam cable 1m

- 12V 2.1A switching power supply

- 5V step down converter with micro usb plug

- fan with temperature sensor

- 4A fuse (fast-acting)


- cable (NYM-J 3x1.5mm²) 1m

- cable shoes

- a lot of screws

know how:

- Fusion 360 or every other 3D modeling software

- 3D printing

- how to setup a raspberry

- linux

- basics of bash scripting

- high voltage electricity

<p>There is nothing I love more than neat wiring, reminds me of the 3d pipes screensaver :)</p>
<p>I have a plugin for OCTOPI that allow you to use RPI GPIO using the web interface.</p><p>It's also capable of turning on / off pins when the print is started or complete, you can also add delays for those events.</p><p>https://github.com/vitormhenrique/OctoPrint-Enclosure</p>
<p>I added this info to the related step ...</p>
<p>Do you have a link for the * sockets?</p>
<p>you should use stuff which match with your country electricity stuff ...</p><p><a href="https://www.amazon.de/gp/product/B0014DTBQQ/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1">https://www.amazon.de/gp/product/B0014DTBQQ/ref=oh...</a></p><p><a href="https://www.amazon.de/gp/product/B005G3QGOU/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1">https://www.amazon.de/gp/product/B005G3QGOU/ref=oh...</a></p>

About This Instructable




Bio: I'm working as Technical Solution Manager (whatever this means) for a big IT company in germany, next to my job I'm teaching our ... More »
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