<p>Soldering is fine, both for the thermistor wires as for the heater.</p>

<p>The wires don't need to be particularly special, though there are some things you should keep in mind:</p>

<ul>
<li><p>Current. The heater can draw up to 3-4A, the wires need to be able to handle this. The wires for the thermistor can be thinner.</p></li>
<li><p>Flexibility. The hotend (presumably) moves, so the wires should be able to withstand frequent movement. Use stranded (rather than solid) wire.</p></li>
</ul>

CC BY-SA 3.0
2016-12-13T17:30:08.490Z
Thanks! And soldering is fine for the thermistor wires too? I've worked with thermocouples and extending those wires by soldering is a strict no-no
electrophile
CC BY-SA 3.0
2016-12-13T19:37:18.517Z
Yes. Thermocouples work on a different principle from thermistors.
Tom van der Zanden
CC BY-SA 3.0
2016-12-13T17:10:13.417Z
2016-12-13T19:36:27.187Z
2016-12-13T19:36:27.187Z
Tom van der Zanden
<p>I wanted to extend the E3D V6's extruder heater and the thermistor wires. Is it ok to solder extension wires or does it have to be crimp only! Also are regular wires ok or does it have to be some special cable?</p>

<hotend>
Extending extruder heater and thermistor wires
electrophile
# Extending extruder heater and thermistor wires

(Asked by: username_0 on 2016-12-13)

I wanted to extend the E3D V6's extruder heater and the thermistor wires. Is it ok to solder extension wires or does it have to be crimp only! Also are regular wires ok or does it have to be some special cable?

**Tags:** hotend

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## 1 answers

### Answer by username_1 on 2016-12-13. Score: 4 | Accepted answer

Soldering is fine, both for the thermistor wires as for the heater.

The wires don't need to be particularly special, though there are some things you should keep in mind:

* Current. The heater can draw up to 3-4A, the wires need to be able to handle this. The wires for the thermistor can be thinner.
* Flexibility. The hotend (presumably) moves, so the wires should be able to withstand frequent movement. Use stranded (rather than solid) wire.

> **Comments:**
> **username_0**: Thanks! And soldering is fine for the thermistor wires too? I've worked with thermocouples and extending those wires by soldering is a strict no-no  
> **username_1**: Yes. Thermocouples work on a different principle from thermistors.  

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