Servo wiring for detachable wing

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Servo wiring for detachable wing

Postby takilara » Tue Oct 18, 2011 5:47 am

Hello,

I have a Multiplex Funcub plane. This has a wingspan of about 1.4meters, and has 4 servos in the wing.

To transport this in the car, i typically unfasten the wing, and twist it so it is parallel to the fuselage, all wires still attached. I still cannot fit it in the trunk of my car though.
I was thinking that i should devise some different way to do my servo leads, so I can easily attach and detach the wing easily. Anyone have any good experiences and ideas? I was thinking shortening all the leads to end at the same place, about 5-10 cm longer than "to the middle of the wing", color code them with shrink wrap, and add new leads from Rx up to the same place, also with color coding.

If a "multi servo" connector block exists, that might be something to look into as well..

Today its wired like this:
Aileron servos, extended mid wing, connected directly to the Rx
Flap Servos, original servo leads about 4 cm longer than "the middle of the wing", attached to a Y harness, then to the Rx.

Regards
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Re: Servo wiring for detachable wing

Postby Keith » Tue Oct 18, 2011 7:16 am

I heard of some one using magnets to make the contacts... Don't know if it worked or not... Don't think I would trust it...
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Re: Servo wiring for detachable wing

Postby takilara » Tue Oct 18, 2011 7:55 am

sounds cool, however i don't think I would trust them either..
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Re: Servo wiring for detachable wing

Postby ergocentric » Tue Oct 18, 2011 11:18 am

I just use coloured heat shrink and short servo extensions on all the connectors.
I've only had three servo wings though.
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Re: Servo wiring for detachable wing

Postby ergocentric » Tue Oct 18, 2011 11:21 am

Keith wrote:I heard of some one using magnets to make the contacts...


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Re: Servo wiring for detachable wing

Postby Aussie Joe » Tue Oct 18, 2011 11:50 am

Keith wrote:I heard of some one using magnets to make the contacts... Don't know if it worked or not... Don't think I would trust it...

I have seen people use them for power contacts on AA batteries when prototyping small circuits.
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Re: Servo wiring for detachable wing

Postby Shotglass » Tue Oct 18, 2011 5:29 pm

the simple method is using servo extension cords with either colour coding or 123 written on them

a much nicer but also much more work intensive method is using a multiplex or mpx connector:
http://www.hobbydirekt.de/images/produc ... 521302.jpg
which is actually a battery connector but can be used to route 6 connections (ie plus minus and 4 servo signal wires in your case) through a very safe connector
if you want to go all out you could even glue the connectors to the wing and the fuselage in such a way that they connect automagically when you screw the wings on
ie like this:
http://mitglied.multimania.de/hestoeck/ ... 0326as.jpg
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Re: Servo wiring for detachable wing

Postby takilara » Tue Oct 18, 2011 6:09 pm

Shotglass wrote:a much nicer but also much more work intensive method is using a multiplex or mpx connector:
http://www.hobbydirekt.de/images/produc ... 521302.jpg
which is actually a battery connector but can be used to route 6 connections (ie plus minus and 4 servo signal wires in your case) through a very safe connector
if you want to go all out you could even glue the connectors to the wing and the fuselage in such a way that they connect automagically when you screw the wings on
ie like this:
http://mitglied.multimania.de/hestoeck/ ... 0326as.jpg

Ooo, that did look nice! Might be difficult in a foam model though. I forgot all about posibility to have common ground and plus, that does give a few more options. It might seem that just adapting the lead lengths and coding the connectors is the path most commonly used though, and i think i have everything necessary for that already.

Thanks for all your advice!

Regards
The price of getting what you want;
is getting what you once wanted...
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Re: Servo wiring for detachable wing

Postby ergocentric » Tue Oct 18, 2011 7:06 pm

HobbyKing sells MPX connectors ;)

And totally forgot Ashlok (I think they are molex connectors) http://www.thunderboltrc.com/index.php? ... Path=82_83
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Re: Servo wiring for detachable wing

Postby takilara » Wed Oct 19, 2011 10:44 am

I have now purchased Multiplex connectors and servo leads :)
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is getting what you once wanted...
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