Jump to content
Sign in to follow this  
pete beadle

Soldering wires to MPX green connectors

Recommended Posts

pete beadle

Hi all

 

Happy New Year to anyone who knows me.....and anyone else who doesn't, come to that.....

Now, a question that came about when re-soldering a set of green connectors on my no 2 Europhia

Is there a standard, common or usual arrangement for where to solder the ends of the 4 three-wire ends when soldering MPX green connectors? 

I thought everyone used the same arrangement until I realised the re-soldering I was doing was different to the  sequence on the connectors I was actually re-furbing....

So, there are four sets of red/black/white wires that need to be arranged and soldered to connectors that have one pin at 12 o-clock. one at 3 o-clock and two sets of 3 each side -where do you all solder your leads?

Now that's better than the usual New Year quiz questions isn't it?.....

Regards

 

Pete

BARCS1702

 

Share this post


Link to post
Share on other sites
satinet

No there isn't a standard

I tend to solder them the same just to reduce the chance of  mistakes (signal wire on the outside, positive pair on the cut out bit, neg pair on the flat side).

Obviously you just want to be careful of the positive.

Share this post


Link to post
Share on other sites
oipigface

No there isn't a standard

I tend to solder them the same just to reduce the chance of  mistakes (signal wire on the outside, positive pair on the cut out bit, neg pair on the flat side).

Obviously you just want to be careful of the positive.

Having not been sufficently careful about this in the past (an incident best forgotten), by chance I now have adopted exactly the same standard as Tom's!

Share this post


Link to post
Share on other sites
f3fman

My own standard, which sometimes includes wiring the positives together, and the negatives together, on both sides, for redundancy, but don't always bother, and especially when space is tight  8-)

Share this post


Link to post
Share on other sites
isoaritfirst

That's a very funny plug arrangement Pete. Mpx green usually are six pins.

Share this post


Link to post
Share on other sites
oipigface

That's a very funny plug arrangement Pete. Mpx green usually are six pins.

 

Six to the male and six to the female. Makes twelve altogether.

Share this post


Link to post
Share on other sites
Woodstock

Just keep a record of what you do for future reference..

Share this post


Link to post
Share on other sites
isoaritfirst

Description still doesn't sound like a green mpx. But anyway I used to arrange to allow n and live t be close together to allow the pins to be linked together to add some redundancy. But i did have the odd mishap, makings leads that were later installed into the wrong wing halves resulting in connections being reversed and servos wrecked.

I now always connect the three wire from each servo with the signal on each end pin, the red then black running around the plug. I don't connect the live and neutrals together.

I came to the conclusion that linking pins to add in redundancy is only of any value of you check each flight that everything is still OK. If you don't then you won't know you have a fail until both servos stop working and you crash. Redundancy actually come from having two servos in each wing and landing with one if the other fails.

Share this post


Link to post
Share on other sites
Jef Ott

"So, there are four sets of red/black/white wires that need to be arranged and soldered to connectors that have one pin at 12 o-clock. one at 3 o-clock and two sets of 3 each side -where do you all solder your leads?"

 

This sort of implies a round plug doesn't it? 

I think we are all (except Pete) assuming that an MPX Greeny is the rectangular sectioned items most commonly used, not this 8 pin odd ball.

 

Do you have a link to a picture of the item you are using Pete?

 

Having said all that Woodstock has it right, just make a note of your own standard. You could even keep a plug or socket with wires soldered to it, in your wiring toolkit, so that you have a reference to work to. Wish I had done that!

 

Happy New Year Pete, and all other glider guiders.

Jef

Share this post


Link to post
Share on other sites
Scram

I suspect Pete is referring to the 4 x 3 wire ends being 2 to Rx and 2 to servos, on either side of the 2 piece greenie.

 

I would agree with the method of putting the signals on the end pins and standardising with +ve on cutout side, -ve on flat side, or vice-versa.  Then they cannot be connected causing the magic smoke to escape.

Share this post


Link to post
Share on other sites
pete beadle

Thanks Scram

 

Yes, what you say is correct IT IS the "standard" MPX "greenie" its just my description is naff

When I said 2 sets of 3 wires each side I meant four sets of three wires have to be connected, two sets each side

and yes IDO know I'm referring to Futaba wires and others (eg JR have red/brown/orange) - but the principle is the same

Anyway, the variety of your answers THANK YOU says to me there ISN'T a standard format and "personal preference rules OK"....

I WILL do as Jef says and keep a spare using my favoured setup to remind me what I've done.....

 

Thanks guys

Pete

BARCS1702

Share this post


Link to post
Share on other sites
EssexBOF

That's a very funny plug arrangement Pete. Mpx green usually are six pins.

Mnn that's how I see them, 6 pins into 6 female sockets.

 

I have adopted a standard now of joining the aileron & flap + & - wire's up, from each semi span( port & starboard) so as only one wire has to be soldered onto the pins on the plug. So the single pin on each side has either, + or -, then the 4 signal wires go onto the 4 pins 2 either side.

I usually plug the 2 halves into each other, as they are polarised and write + & - on both halves to match and number  them 1,2 3,4 to match when soldering the wires on.

Share this post


Link to post
Share on other sites
bogbrush

Having not been sufficently careful about this in the past (an incident best forgotten), by chance I now have adopted exactly the same standard as Tom's!

sounds familliar. got it wrong once and burned out 4 wing servo's. !

Share this post


Link to post
Share on other sites
pete beadle

Hi all

 

Update no 1

Rummaging around in my boxes of old and new MPX connectors I've found another pair of connectors, which I bought after their appearance had been announced on these hallowed digital pages

They're EIGHT pin, a sort of rusty brown/red colour and absolutely ideal for the job in hand

The good lord (no, not the dark lord) only knows what other specialist items are squirrelled away "in a safe place" in my spare parts boxes - there's SO MANY of them.....

Be fun finding them though....

 

Pete

BARCS1702

Share this post


Link to post
Share on other sites
satinet

Pete why do you need an 8 pin connector?

As I recall the europhia was a 'normal' 2 piece wing f3b model, so you only need 6 pins for each wing half. Correct me if I'm wrong.

Doesn't it have holes for mpx green connectors?

Share this post


Link to post
Share on other sites
f3fman

... and you probably only actually need 2 pins + 1 pin per servo for each wing = 4 pins for a 2 servo wing

Share this post


Link to post
Share on other sites
pete beadle

Hi Tom (Satinet)

 

The red/brown connectors were bought to be fitted into a Calypso Contest where the single 8-pin is fixed on the underside of the wing centre panel to be connected to an 8-pin connector on a short lead from the fuselage underside

My original request was for how we all fit MPX green connectors using one connector on each side of the fuselage connecting to one green connector each on wing root and you've answered that by saying there is no "standard" way to position/solder the 3 - colour leads

I was only considering the 8-pin ones because, as John says, I could use the two rows of four pins to mate with a single 8-pin connector on each side, simplifying their use on arrangements such as the Europhia

Hope that explains why the red/brown ones seemed better, the idea was to simplify the layout of the colours of the leads removing the need to "double-up" the common red and black leads 

I'll stop now as even I'm starting to get confused - the problem with the Europhia is solved, the red/brown connectors just seemed better to simplify their layout when used on a two panel wing instead

Regards

 

Pete

BARCS1702

Share this post


Link to post
Share on other sites
satinet

I'm confused too. You don't need to double up with mpx greens :)

as long as it works!

Share this post


Link to post
Share on other sites
pete beadle

Hi Tom

 

Thank you

I was just trying to explain that I was hoping that I could standardise all my installs using MPX green connectors using the same pattern/format/sequence, but now realise this is not a good idea, involving too much work to do and little return, so now I'm looking at the simplest and most straightforward soldering job to produce that and I am/was just looking at all the alternatives before I did

As you say, using MPX green connectors in the way everyone else does seems to be the simpleast way, but having a wiring diagram to show where the leads are soldered onto the pins for each install , as John says, is essential

Basically, I'm going to give up the search now, and go with what I feel is the simplest and best arrangement, using MPX green connectors and NOT the red/brown 8-pin or D-connectors or anything other than the "standard" green 6 pin connector

Thanks for all the helpful replies

Regards

 

Pete

BARCS1702

Share this post


Link to post
Share on other sites
oipigface

Basically, I'm going to give up the search now, and go with what I feel is the simplest and best using MPX green connectors and NOT the red/brown 8-pin or D-connectors or anything other than the "standard" green 6 pin connector

Well, at least until you build a model with six moving wing surfaces!

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.