3d printer extruder wiring

Other Hardware General Electronics
1

so i got this extruder for my 3d printer project:

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im having problems getting it to work.
any idea how to wire this thing?

Also, what's the purpose of the 'blue' and 'red' wires you see in the picture above? as i understood they might be the thermostats, so how to wire them and where?

Thanks

2

sorry, there is no answer to your question ....

It'll be easy, as soon as you send a photo of this head, with unfastened wires, to see where each pairs goes.
As far as I can see ,

  • the red and black wires are for the fan ( + and - )
  • the pair that goes in the pink "bubble" is for the NTC
  • the other pair is for the heating device

But that won't tell you how to wire all of this
How do you control it ? Which controller do you plan to use ?

You should search google for "3d printer controller board" , you'll get plenty of schematics and references

3

The red and blue tags will be the thermocouple, for which you need a thermocouple
amp to handle (should be standard on 3D printer board). The other two are the heater.

You can check as the thermocouple pair should read as a dead short and the heater will
be some finite value.

4

@MarkT, as far as I know, there is no thermocouple in a printer 3d extruder, it is a NTC thermistor (very often a 100k)

5

My 3d printer definitely uses a platinum resistance thermometer (RTD) as the temperature sensor.

So that means that so far we have mentioned 3 different possibilities for the temperature sensor.

You need to find out whether you have:

You should be able to determine what you have by measuring it's resistances at two temperatures

6

and the winner is...................

100k thermistor :wink:

New-0-4mm-Nozzle-Extruder-Print-Head-for-3D-Printer

Specifications:

1, extruder stepper motor Model 42H46 - Operating voltage 12-24V.

2, the cooling fan operating voltage 12V.

3，Extrusion head voltage 12V, power 35W, 500MM cable.

4，100K thermistor