Sleeving Spectra - how?

Sleeving Spectra - how?

Post by Martin Richar » Wed, 14 Dec 1994 21:51:33


Disclaimer - I have grepped the faq's for 'sleev' and I couldn't
find this...

I finally got some really good wind, and it wasn't raining, and there
was no-one else about, and it was all really going well, and, and,...
PING flutter flutter, there's my 6' flexi lying on the beach with only
one line attached :(

But anyway, now I have one line 6 feet shorter than the other, and 6' of
line with some sleeving on it.  What's the best way to get the sleeving
back where it should be?  I tried just pulling the line through with the
other line (ie the broken-off bit is still in the sleeve) but the
joining knot won't pass through.  So before I start making threading
needles out of bits of wire, is there a better way?

I don't think I over stressed the line - it was only just starting to
pull me about at the 'peak power' part of the flying  window,  I
suspect it was something to do with my father in law and some trees back
in August...  Is this likely?  How bad is the rest of the line likely
to be?  Is there an easy way of testing it (unfortunately my garden is
less than 100' long so I can't just take it out the back and pull ;)

Thanks,

Martin.

--
  .--.   .-.--.-- .-.
  |   \ /__|  |  /__|       Martin Richards, Data Connection Ltd,

  C O N N E C T I O N

 
 
 

Sleeving Spectra - how?

Post by Andrew Beatt » Thu, 15 Dec 1994 16:04:23

Quote:

>Subject: Re: Sleeving Spectra - how?

I'd like to provide a full and detailed answer to this question (a complete
reference piece - more than just "poke the wire...etc), but I've got to go
to work...

If you don't see my followup within a week, drop me a line to remind me...

(reply posted to save other people from doing it also...)

Andrew
--
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Sleeving Spectra - how?

Post by Rodger Duffe » Thu, 15 Dec 1994 23:17:18

Hi All
Greetings from a very windy Cape Town! The south easter has
arrived a little late this year but has been doing some
serious puffing over the last week or so. This is the time
year when the power kiters come crawling out the woodwork
and leave slug like tracks all over the beach. Yes, they do
jump over here as well! Buggying is in its early early
infancy with the Kite Shop having just brought over some of
the Flexifoil PL type buggies.

Nuff chatter...

Quote:
> But anyway, now I have one line 6 feet shorter than the
> other, and 6' of line with some sleeving on it.  What's
> the best way to get the sleeving back where it should be?
> So before I start making threading needles out of bits
> of wire, is there a better way?

This _is_ the best way although there are some heretics
around who will tell you not to bother with sleeving. Take
a thin piece of stiff wire more than twice as long as your
sleeving and bend it in half with a nice tight pinch at
the end. Twist it around itself and if you like attach a
handle or brightly coloured tag of some sort.

You then thread this through your sleeving and when the end
pokes through the end of the sleeving you slip your line
through the loop formed by the doubled back wire and draw
it and your line back through the sleeving. It is a good
idea to thread a generous amount of line (say three times
the length of the sleeve) through the loop to prevent it
being pulled out of the wire loop.

Adjust the sleeve on the line until it is about 2.5cm
(1inch) from the end of the line and tie a single overhand
knot in the distal end. This will prevent your line
dissapearing down the sleeving necessitating you having to
start all over again. (Bet it happens at least once!!!)

You will now need to find somewhere to stretch out your
lines. (I use either a lamp post and the street in front of
my house, a corridor at work or I pop in to the Kite Shop
factory.)

Loop the ends of both lines over something and walk your
lines out. Undo the knots in the sleeving on the free end of
the longer line being careful not to let the line slip
through (bet it happens at least once). Then push the
sleeving forward to match up with the sleeving on the other
line. Apply equal tension to both lines and adjust the free
sleeve so that the inner ends of both sleeves match up. It
is important to smooth both sleeves out ie make sure that
one or the other is not scrunched up. I also usually undo the
knot forming the loop in both leaving a single overhand
knot in the end of one of the pairs.

Once you have the sleeving adjusted firmly pinch the free
sleeve to prevent it moving while retieng the single
overhand knot in the free end. Check lengths again and trim
off excess. Retie the double overhand knots in both and
give the lines a good stretch. Adjust again if necessary.

Some people use a line balancing tool to ensure equal
tension in the lines. I have no experience of these and
manage fine without one. Anybody else with some other
tips???

Cheerio

__________________________________________________________________

Dept. Radiation Oncology    Telephone : (021) 404 3135
Radiobiology Section        University of Cape Town
Groote Schuur Hospital      South Africa

 
 
 

Sleeving Spectra - how?

Post by Bert Tana » Fri, 16 Dec 1994 02:49:48

Subj:   Re: Sleeving Spectra - how?

Quote:

>Subject: Re: Sleeving Spectra - how?

In Ron Reich's book, Kite Precision, there is a chapter devoted to
sleeving lines.  The sleeving tool is called a "fid", and consists
of, more or less, a folded piece of wire that is used to draw line
into and thru the core of the sleeving material.  You can get the
tool thru mail order from Into the Wind, among other places.  I like
the one I got from ITW because the wire is extra long, and is easy
to work with.

Good Winds,
Bert

 
 
 

Sleeving Spectra - how?

Post by Andrew Beatt » Fri, 16 Dec 1994 03:53:31

Rather than just tell you how to fish the line through the middle of the
sleeving, I'll tell you the whole story.  Even people who know how to sleeve
might pick up a tip or two (or find something to correct or argue over...)

I quite enjoy sleeving lines, I find it relaxing.  I take time away from
the flying field to do it properly...

If you're like me, you buy your line un-pre-sleeved in a reel of say 300'
in order to make a pair of lines 150' long.

Find some sleeving of a suitable diameter.  I use soft white polyester
line.  I take care to avoid the coloured dacron which is quite abrasive.

Choose a suitable size of polyester line to suit your Spectra.  The smaller
diameter braided line is hollow and immediately ready for use as sleeving.
For thicker line, you will find a twisted core which can easily be extracted.

I like my sleeving quite long, for example 1 foot.  Since this is a doubled
length and there are 4 ends on a pair of lines, I start by taking an 8 foot
length of sleeving.  The exact length of the sleeving doesn't matter, but
it helps to have them all exactly the same as each other.  I squeeze the
braid of the sleeving along the whole length to ensure that it is all
stretched evenly, then fold the line over, holding the ends in one and pulling
with the other to find the middle.  In this way, I find and cut the sleeving
in half, then each piece in half again, to make 4 identical lengths.  Next,
heat each cut end *briefly* in a flame to seal them and prevent them from
fraying.  Take care to ensure that they seal open, not closed...

With your collection of sleeves prepared, unwind a few feet of line from the
spool of Spectra.  You can spend money on a sleeving needle at a kite store,
but it is just as effective to use a piece of piano wire.  Any nearby
guitarist should be able to give you an old G-string...  Make your sleeving
needle by folding the wire in half.  Poke the folded end of the wire
all the way through the middle of the sleeving until a small length of
the wire emerges from the far end.  Thread a length of Spectra through the
fold in the wire, then pull the wire (and thus the Spectra) back through
the sleeving.

Having managed to get the sleeving onto the Spectra, slide it carefuly to
the end of the line (so that the end of the line and sleeve both co-incide),
hold firmly on the end and stretch out the braid of the sleeve to it's full
length.  Tie an overhand knot in the loose end of the sleeved line to stop it
slipping.  Now fold the sleeved length of line in half and tie and overhand
knot in the doubled length to produce a loop.  I like to tie two overhand
knots next to each other, to avoid any tendancy for the line to slip through
the sleeve.  I tie the knots in opposite directions so that the sleeving lays
flat.

You now have a reel of Spectra with a sleeved end.  Drop the sleeved end over a
peg in the ground and walk away unreeling the Spectra.  As you unreel, let the
reel spin to unreel like a fire-hose (if you hold the reel still and let the
line fall off the side, you'll be putting twists in your line).

When you reach the end of the line, sleeve this end also.  Make sure that the
peg is firmly in the ground, put a handle on the newly sleeved and pull.  This
takes the initial stretch out of the line.  You pull on the whole length as one
to ensure that you stretch it evenly.  Take the newly sleeved end and hook it
over the same peg as the first line.  Now you need to find the exact middle of
the line.  Pull the loop away from the peg to find the mid-point.  To find
the centre precicely, I loop the line round one finger and pull the line.
If you look at the difference between the *sag* in the two halves of the line,
and turn your finger slightly to adjust, you will be able to find the mid-point
of the line with a surprising degree of precision (a 1mm or 2mm difference in
length makes a quite visible difference in sag).

Simply squeezing the fold in the line at the mid-point will make a
kink that you can use as a guide for cutting (trying to cut under
tension may lead to fraying problems).  Now sleeve the two remaining ends as
before.

When finished, some people like to mark the lines (typically using a mark to
signify the right-hand line), but I can always tell which side of the kite
the line is attatched to and so don't bother.

Simo makes a practice of always storing a piece of sleeving on his sleeving
needle, so that it is ready for immediate use for on-field repairs.

There are some who never sleeve, but since the knot weakens the line
considerably, the old engineering maxim is only re-enforced "If it don't
break, it's too heavy!"

Andrew
--
Kite FAQ's: ftp.hawaii.edu:/pub/rec/kites/faq)        o  /\ Kite Jumping
For sale: 10' Flexis with std & UF Spars.             |_ \/   is for

 
 
 

Sleeving Spectra - how?

Post by Coreyki » Fri, 16 Dec 1994 07:35:34


Quote:

>Any more sleeving tips?<

I respond... Although Spectra is not as abrasive as Kevlar, I don't enjoy
watching my expensive lines wear rapidly or abrade at the end-knot, so I
sleeve.
I cut all my sleeves the same length... for quick and dirty repairs on the
field, I leave the little overhand knot at the end of the sleeve of the
line I am repairing, and pull the other line until the ends of the sleeves
are next to each other.  Because the sleeves are the same length, when the
ends match, I tie the sleeving knots and have two lines VERY close in
length without using any other tool.  Usually I get to within 1/2 inch the
first time.  Often closer.
Buggy or Die!

 
 
 

Sleeving Spectra - how?

Post by JBMi » Fri, 16 Dec 1994 10:25:06

....etc....etc...etc.....

But the true question is (again) WHY BOTHER TO SLEEVE AT ALL....
That should stir up a bit of trouble with JTavo and his "sleeveless crew"

                                     :-) Mike Allen (another sleeveless
flyer)

 
 
 

Sleeving Spectra - how?

Post by Dan Whitne » Fri, 16 Dec 1994 12:50:59

Nice sleever can be made out of thin piano wire, which you can get
at any hobby shop. cost about 10 cents for 36 '' cut the wire at the
lenght that you need, just about 1 inch longer than the sleeving that
you use, put just a few twist in the wire then get a small electrical
***connector in red( so you can find it in the grass or whatever) stick
the cut ends into it then crip with pliers. you now have an excellent
sleever for 20 cents and no shipping cost and they work great.
If you dont understand this for any reason give me your mail address
and i will send you some
dan
gone with the wind kites-california
 
 
 

Sleeving Spectra - how?

Post by Simo Salan » Fri, 16 Dec 1994 17:52:27


[ clip a good description of the procedure ]

Quote:
>in half, then each piece in half again, to make 4 identical lengths.  Next,
>heat each cut end *briefly* in a flame to seal them and prevent them from
>fraying.  Take care to ensure that they seal open, not closed...

I take a paper clip, unbend one end and insert it into the sleeving
before heating in flame, it ensures the end keeps open.

Quote:
>Simo makes a practice of always storing a piece of sleeving on his sleeving
>needle, so that it is ready for immediate use for on-field repairs.

It also packages the folded piano wire neatly, so it's not a mess
in my spare part bag...

Smooth Sleeving
Simo
--