<p>The braiding of motor wires should only be done for looks.  It looks cool and that's about it.  It may actually cause problems with smaller motors.  I once had braided motor wires on a brushless whoop size quad and the braiding of the wires caused the motors to behave erratically at start up.  Sometimes they would start spinning.  After removing the braids they started up perfectly every time.   </p>

CC BY-SA 4.0
2020-05-07T03:51:24.537Z
2020-05-07T03:51:24.537Z
tavis
<p>The BLDC motors we use on quadcopters are 3 phase wiring, so probably the best answer of from the electronics stackexchange <a href="https://electronics.stackexchange.com/questions/289069/braiding-3-phase-wires">Braiding 3 Phase Wires</a>.</p>
<blockquote>
<p>Twisting reduces electromagnetic effects (both radiation and reception) in two ways. Firstly if the wires are loose twisting them keeps them close together. Secondly twisting mixes up the direction of the magnetic fields so when viewed from a distance they mostly cancel.</p>
<p>I would expect braiding to have a similar impact electrically to twisting with the advantage that it won't come un-twisted.</p>
</blockquote>

CC BY-SA 4.0
2020-05-03T06:34:53.987Z
2020-05-04T03:20:05.130Z
2020-06-18T08:37:30.297Z
Paul Kendall
<p>Assuming BLDC motors with the ESC positioned at the 'worst case' (furthest distance) with longest power wires between the ESC and the motor, will braiding these three wires reduce the EMF that would be produced by unbraided wires? Or, would shielding these three wires work better? Is it even needed if the wired are inside a carbon fiber strut? After all, the CF is conductive and will act as a shield against EMF.</p>

CC BY-SA 4.0
2020-05-03T08:22:07.287Z
Question also here: [On a multirotor, how effective is braiding of power wires from the ESC to the BLDC Motor(s) in reducing or eliminate emf?](https://robotics.stackexchange.com/q/20600/26045)
Kralc
<brushless-motors><interference>
On a multirotor, how effective is braiding of power wires from the ESC to the BLDC Motor(s) in reducing or eliminate emf?
HansenJC001
# On a multirotor, how effective is braiding of power wires from the ESC to the BLDC Motor(s) in reducing or eliminate emf?

(Asked by: username_0 on 2020-05-03)

Assuming BLDC motors with the ESC positioned at the 'worst case' (furthest distance) with longest power wires between the ESC and the motor, will braiding these three wires reduce the EMF that would be produced by unbraided wires? Or, would shielding these three wires work better? Is it even needed if the wired are inside a carbon fiber strut? After all, the CF is conductive and will act as a shield against EMF.

**Tags:** brushless-motors, interference

> **Comments:**
> **username_1**: Question also here: [On a multirotor, how effective is braiding of power wires from the ESC to the BLDC Motor(s) in reducing or eliminate emf?](https://robotics.stackexchange.com/q/20600/26045)  

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## 2 answers

### Answer by username_2 on 2020-05-07. Score: 3

The braiding of motor wires should only be done for looks. It looks cool and that's about it. It may actually cause problems with smaller motors. I once had braided motor wires on a brushless whoop size quad and the braiding of the wires caused the motors to behave erratically at start up. Sometimes they would start spinning. After removing the braids they started up perfectly every time.


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### Answer by username_3 on 2020-05-03. Score: 0

The BLDC motors we use on quadcopters are 3 phase wiring, so probably the best answer of from the electronics stackexchange [Braiding 3 Phase Wires](https://electronics.stackexchange.com/questions/289069/braiding-3-phase-wires).

> Twisting reduces electromagnetic effects (both radiation and reception) in two ways. Firstly if the wires are loose twisting them keeps them close together. Secondly twisting mixes up the direction of the magnetic fields so when viewed from a distance they mostly cancel.
>
> I would expect braiding to have a similar impact electrically to twisting with the advantage that it won't come un-twisted.


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