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Assemblage du kit PS_ON

Diagramme général du kit PS_ON

diagramme kit PS_ON

Principe de fonctionnement

Ce kit permet d’éteindre électriquement votre imprimante 3D à la fin de son impression.

Pour ce faire on vient instrumenter un câble d’alimentation  à l’aide d’un relais statique piloté par le contrôleur de l’imprimante 3D.

STL du boitier

Le boitier du kit PS_ON est disponible sur thingiverse

Le câblage en Bref

diagramme kit PS_ON
diagramme kit PS_ON

Les étapes du câblage en photo

Kit PS_ON


L’interrupteur modulaire



Préparation du câble d’alimentation





Raccordement du câble d’alimentation






Soudure des câbles marron et jaune/vert

Après avoir soudé les pairs de câble électrique, pensez à ajuster la position de la gaine thermorétractable et de la faire rétrécir avec un pistolet thermique, une briquet ou une allumette.






Sécurisation des câbles de puissance



Raccordement du câble de pilotage

Dans certains kits, ce câble est déjà fourni connecté sur le relais statique.

Dans le cas contraire, on coupe la partie du câble possédant le connecteur Dupont  avec 2 pins et on conserve celui avec 3 pins.


Sécurisation du câble de pilotage avec un serre câble

Fermeture du capot

Kit PS_ON

Raccordement sur le contrôleur d’imprimante 3D (Ramps 1.4)

Module PS_ON Seul:

Les 2 flèches vous montrent ou connecter votre câble provenant de votre PS_ON

  • Le fil noir se connecte sur la pin tout en bas du schéma
  • Le fil rouge se connecte sur la pin tout en haut  du schéma

raccordement du kit PS_ON sur Ramps 1.4

raccordement du kit PS_ON sur Ramps 1.4

Module PS_ON + BLTouch:

  • Le module possède un câble avec 1 connecteur noir avec 3 Pins.
  • 2 pins seulement sont raccordés à un câble.
  • Il vous faut sortir les connecteurs métallique de leur logement.
  • Pour ceci, une lame fine permet de soulever la petite languette qui se trouve d’un côté du connecteur noir. Une fois la languette soulevée, vous devez tirer sur le fil pour le faire sortir de son logement.

Utilisez maintenant les 2 connecteurs simple fournis avec le kit

raccordement du kit PS_ON sur Ramps 1.4

  • Insérez-y les connecteurs métallique. Vous devez entendre un « clic » si ce dernier est bien positionné dans son nouveau logement.
  • Vous devriez avoir ceci

raccordement du kit PS_ON sur Ramps 1.4

Il vous faudra rajouter un jumper à l’endroit ou se trouve le rectangle noir sur le schéma ci-après.

La position des fils noir et rouge est également indiqué sur le schéma.

raccordement du kit PS_ON sur Ramps 1.4

Modification du Gcode de fin dans votre slicer (CURA)

PS_ON et Cura

PS_ON kit assembly

PS_ON kit wiring diagram

PS_ON kit wiring diagram

Working principle

This kit allows to electrically switch off your 3D printer when your print are finished

In order to achieve this, a power câble is being instrumented, and a static relay provide enough control for the 3D printer controler to allow this feature to work.

STL of the enclosure

The PS_ON enclosure box is available for download on thingiverse

Wiring in few steps

diagramme kit PS_ON
diagramme kit PS_ON

Detailed steps for wiring in pictures

Kit PS_ON


Modular switch



Power supply coord preparation





Power coord connection to static relay






Soldering of brown and yellow/green wires

After soldering the pairs of electric wires, make sure that the thrincable tubing is placed over the soldering location. Also make sure to thrink the tube using a matches, lighter…






Securing power cables



Signal cable wiring

In certain kits, this wire might already be wired to the static relay unit.

In the other case make sure to cut the 2 pins connector from the cable and to keep the part with the 3 pins connector.


Securing the signal wire inside the enclosure

Closing the enclosure

Kit PS_ON

Connection on 3D printer Controler board(Ramps 1.4)

 PS_ON module only:

The 2 arrows shows where to connect the wires from the PS_ON Module

  • The black wire is to be connected at the bottom of the schematic
  • The red wire is to be connected at the top of the schematic

raccordement du kit PS_ON sur Ramps 1.4

raccordement du kit PS_ON sur Ramps 1.4

PS_ON Module + BLTouch:

  • The module has 1 black connector with 3 pins
  • Only 2 pins are connected to this black connector
  • You need to remove the metallic connector
  • You might need a thin blade in order to lift the strips and pull the wire to remove it from the black housing.

Use the provided 2×1 Pin housing

raccordement du kit PS_ON sur Ramps 1.4

  • Insert the metallic connector inside. You should hear a « click » sound once properly in place
  • You should have this

raccordement du kit PS_ON sur Ramps 1.4

You will need to add the jumper where shown on the schematic below.

The black and red wire location is also shown on the schematic

raccordement du kit PS_ON sur Ramps 1.4

Gcode changes in your slicer (CURA)

PS_ON et Cura

A smoke detector module for 3D printer

 

A smoke detector module for 3D printer

One of the easy to find module for this purpose is displayed here.

Those sensors are often capable of detecting several types of Gaz/smoke/molecules.

 

 

 

 

Sensor main caracterisitics:

This model is a MQ2 gaz sensor module for arduino.

It can detect

  • Smoke
  • Hydrogen
  • Alcohol
  • MethanePpropane
  • I-buane
  • LPG.

It has 2 types of outputs:

  • Analog
  • Digital

The input voltage is 5V and the power consomption is about 800mw when « heating ».

Why does it consumes 800mW?

It can consume up to 800mW because the sensor needs to be at a certain temperature to operate properly.

In order to be warm enough, it’s equipped with a heating element that requires the 800mW to increase the sensor inner temperature.

The sensor needs a few seconds to be ready after switch on.

As the sensor needs to be at a certain temperature, you need to wait a few seconds so that it gives you the proper information.

If you both switch on the 3D printer and the sensor at the same time, the printer might detect from the very beguining some false alarm.

To prevent this:

  1. Power on the sensor module
  2. Wait a few seconds
  3. Power the 3D printer

The anolog output:

The sensor has an analog output.

The output voltage is proportional to the amount of particles detected.

On this output you cannot adjust the sensibility of the sensor as all is handled by a microcontroler or an electronic circuitry afterward.

The digital Output:

This output mainly uses the analog output value to operate and is triggered based on some voltage limit.

WIth this output you can adjust the sensibility of the sensor based on the blue trim at the back of the sensor.

 

 

 

 

Adjusting the trigger limit:

In addition to the blue trim, a red led will also switch on once the limit has been reached.

So you can adjust the level of this trigger by placing the sensor in the desired test environement and manually adjust the trim so that the led switches on or off.

You can use some humidificator to create smoke,smoke machine, cigarette smoke or even acetone or air spray to trigger the sensor.

Note: It’s important to know that the sensor reacts to the alcohol contained inside airspray as well as Acetone vapors.

So applying airspray during a print might trigger the alarm!

Also cleaning your heatbed with acetone while the sensor is on might also trigger it.

The wiring diagram:

This diagram shows an example on how to wire the module to a Ramps 1.4 board.

The board on the left allows to convert a 12V power supply into a 5V 1A power output.

The already available output pins are very nice to wire the sensor with a simple set of wires with connectors.

The current firmware of the Scalar 3D printers is able to use this sensor.

A ground wire also links the 5V breadboard with the ramps board.

In this example we are using the Digital output of the sensor as we can easily adjust the trigger level with a simple screw driver.

You can also use the analog output of this sensor, but you will need to play a little bit with the firmware settings as well as the debug outputs in order to adjust the trigger level.

The plastic housing

We already made some plastic housing models available on thingiverse:

http://www.thingiverse.com/thing:1103527

The current housing are specialy made so that you can fix all the different boards into 3030 aluminum extrusions (used in Scalar 3D printers)

Full kits available:

Full kits are available on our store:

http://3dmodularsystems.com/en/eletronic-components/61-gaz-detector-kit-for-scalar-3d-printer.html

Including:

  • 12V to 5 V 1A regulator board
  • MQ2 sensor module
  • 1 set of wires with dupont terminals