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Shut down printer by smoke detector

One of the easiest way to shut down3D printer wirelessly by smoke sensor automatically

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$35.00
niujl123 has 3 orders / 0 reviews
Ships from Shenzhen, CN
Most the 3D printer use the MOSFETs to switch power to the heating element.unfortunately,when MOSFETs fail,they usually fail close(i.e. conducting)this means that,even if the firmware has thermal run-away detection,it won't be able to do anything about it,yet your hotend will most likely get over 300℃ in a matter of seconds that will burn the flammable filament, that's why I made this.

Wireless smoke is stable for it has been used in many other places. Of course, you can remove the radio module and wire the signal and connect it directly to the socket relay.

  •    3Dsmoke is designed to safely run and switch printers up to 2500W;
  •     you can mount this smoke sensor anywhere as it's wireless;
  •     the 2 AAA battery can last one years;
  •     small size,high sensitivity,optical sensor;
  •     this is more robust by cutting off the power source on a separate system;
  •     include a wireless controllable power socket and a tiny wireless smoke detector;
  •     Overheating protection

Connector: underrated connectors on the boards,and use inadequate torque when tightening terminals,as the wire works itself loose,it starts arcing and burning the connector.

Failure of the MOSFET.
     most the printer use the MOSFETs to switch power to the heating lement.unfortunately,when MOSFETs fail,they usually fail close(i.e. conducting).this means that,even if the firmware detects 
something has gone wrong,it won't be able to do anything about it.

how to pair wireless between power socket and smocke detector? (had paired by default)
1,power on the power socket and smocke detector;
2, Press and hold the Power socket's button until the LED flashes;
3, click the button on the smock detector;
4, and then the LED on the Power socket will flash quickly,means it's paired successfully.

thingiverse


  • 1 × remote power socket
  • 1 × optical smoke detector
  • 1 × radio transmitter

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Discussions

arjan.nouwen wrote 06/25/2019 at 16:24 point

I like this idea but i think a wired solution would be better. Radio transmitters or receivers fail, often....

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mark wrote 06/26/2019 at 00:46 point

Thank you very much! the other simple way like you said is to remove the radio module and wiring the signal/gnd directly. 

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Tyler Gerritsen wrote 05/28/2019 at 15:01 point

I like your project, it definitely has an important application with 3D printers.  I've heard of a few catching fire.

Do you intend to do any testing on a printer?  eg. Shorting a hotend to see how your detector will respond?

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mark wrote 05/29/2019 at 03:22 point

Thank you very much for liking and the good recommends!I will do more testing and make it more suitable for 3D printer,eg.adjust the sensor sensitive,smaller for easy mount.

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