Making a paper servo lead tube!!

[Kevin Fairgrieve]

I will shortly be covering a small I.C. powerd plane with a servo at the tail end.

I need obviously to get the lead from the back end to the radio bay, and decided a paper tube would be best.

 

So once you have rolled your tube, how do you glue it? Not to the airfame but to itself so that it does not unroll?

 

Superglue.. Messy and likely to glue myself to it.

 

PVA.. long cure and dry time. Or is it?

 

Pritt stick. Would it stand up to the environment?

 

Anything else.

 

Your thoughts and sollutions, greatly appreciated.

 

Kev

[Augusto]

Hi Kevin,

 

I use to make mine with brown paper which I roll on a allu tube using PVA. Dries in minutes and hard enough to the function.

 

Cheers,

 

Augusto

 

PS: you add glue as you roll it on. 

Edited By Augusto on 02/03/2011 14:28:05

Edited By Augusto on 02/03/2011 14:28:31

[ken anderson.]

hello kevin......sellotape along the join?

 

ken anderson ne..1.

[Mowerman]

Plain white printer paper /PVA, glue as you roll. 3 layers.

The glue softens the paper so it dosnt unroll itself. Use rubber bands to be extra sure,

Best to let it dry overnight.

[Biggles' Elder Brother - Moderator]

Rizla

 

BEB

[Lima Hotel Foxtrot]

Posted by Biggles' Elder Brother - Moderator on 02/03/2011 20:57:06:

Rizla

 

BEB

[Kevin Fairgrieve]

Posted by Biggles' Elder Brother - Moderator on 02/03/2011 20:57:06:

Rizla

 

BEB

No good.

 

Non smoker...

[Kevin Fairgrieve]

All the other`s are good simple idea`s. So why did I not think of them?

 

Wood and trees.

 

Thanks.

[Mowerman]

Most of the above are rolled round wood dowels or metal tubes/bars to gine an even shape.

What would you roll rizlas round that would hold its shape?

Oh sorry constable its for private use only!

[Phil Claridge]

rizlas is a weedy idea

[Peter Miller]

The system that I use was told to me by an Australian friend and it is so simple and easy.

 

Forget gluing paper round formers and all that mess.

 

Take your paper and roll it round a 1/4" dowel. Insert it up through the holes in the wing and then allow it to unroll.

 

Apply glue where it touches the ribs and along the join. Job done. you can slide your leads down easily

Edited By Peter Miller on 04/03/2011 19:30:11

[Kevin Fairgrieve]

Great for a wing, with an open fuselage structure not a viable option.

 

Big open spaces.

 

Tail mounted servo.

 

Edited By Kevin Fairgrieve on 04/03/2011 20:07:59

[Former Member]

[This posting has been removed]

[Steve W-O]

PVA is ideal, and won't move after a very short time.

 

What about an ordinary glue stick? Easier to spread and dry almost straight away.

[Peter Miller]

You don't NEED paper tubes in that fuselage, the leads can just hang loose, they do on my Slingsby T31M

And that is a lot longer than your model

[Ady Hayward]

Hi, I find that the round tubes do restrict the passage of the connector over other cables. I prefer to have square tubes the width of the connector + a bit. They can lay in square apertures through the structure with exit holes on the underside so the connector falls out as it is pushed along. Ideal for wings with two servos each side.

[Plummet]

You can still get that gummed brown paper tape - (Butterfly Brand?) I would think that you could make a useful tube using that.

 

Plummet

 

[fly boy3]

Hi Kevin, does the plan state the servo must be at the tail position. If not ,could it not be moved to the other end of the fuz. then you would not need a tube.If you go down this route please re check the Cof G position. cheers FB3

[Kevin Fairgrieve]

The plan, is a reworking of Vic Smeed`s popsie.

 

All laser cut and digitised. The servo is shown in the tail position, and the throttle an rudder are on a tray in the main cabin area.

 

There is no reason why it could not be moved. Food for thought.

 

 

 

[fly boy3]

On second thoughts Kevin, Vic Smeed, and Popsie are classics. Who are am I to interfere with genius. Cheers/

Edited By fly boy3 on 05/03/2011 20:16:02

[Kevin Fairgrieve]

Indeed Vic Smeed`s designs are classic.

 

This reworking takes the best and updates it using CAD, design and cutting.

 

As the original was freee flight, everything modern is "not derigur". Hope I said that correctly.

 

Anyway the plan calls for a tail mounted servo, and better designers than me have dedided it should be. So. A paper tube it is.

 

Kev

[Peter Miller]

As I said above, you don't need a paper tube down the fuselage. The ONLY reason for a paper tube in the wing is to get the plugs past the ribs. I have even seen ARTFs (Spit, spit) which did not have paper tubes in the wing, just a piece of cotten down the holes to pull the lead through.

Edited By Peter Miller on 06/03/2011 07:51:53

[Ady Hayward]

Why not go closed loop on both rudder and elevator.

Just a thought.

 

Ady

[Kevin Fairgrieve]

The rudder is closed loop.

 

Very little room for closed loop on the elevator.

 

 

[kc]

You could do it the same way as getting an aerial through........stick a piece of piano wire in from the tail and when it gets to the front, tape the lead to the piano wire and pull back through.

I suppose keeping it away from the closed loop is important, because the closed loop wire might just abrade & cut through an extension lead in time.