I suspect that what I am asking about is actually a hitch but as I say i am no expert.
Yes, though a particular, unusual one,
with both ends loaded together (adjacent),
not merely one loaded and a free end (tail).
The application I have in mind is that I want to tie a 2mm diameter leather thong
around the stem of a PVC suction cup
//
... and the distance between the top of the cup and the underside of the "cap" is 3mm.
And X. wonders at using FOUR wraps of 2mm to fit into 3mm space !!
But you've at least done the obvious, with the
clove hitch--although, tell us, where was the center of this hitch :
at the away (top, if pulling downwards) side of the stem,
or with the ends? In the first case, the ends would pull
into the stem at near tangents (encountering wrapped
material squeezed in those scant 3mm),
wheres in the other way, the ends would bear into
the crossing part of the
clove to swing in opposite
directions to then turn around the stem --an inferior
orientation, IMO.
Given the frictive nature of the material (as Roo remarks),
I'd think that the
clove h. sufficed. Still, though
one has the issue of each end coming into two turns
around the stem which are alreay squeezed tight; perhaps
that end-entry & squeeze just hastens the rise of turns
into the crossing part, no real problem --so long as
tension is equal on the ends and there's no rotation
around the stem.
in such a fashion that the leather will tighten under tension.
I believe I echo Roo's thought that leather thongs will be
frictive and take special attention to set tight --such as
pushing against the knot while pulling (maybe individually)
each end. In other words, I don't see a hitch here, with
expected moderate loading (how much can it be?), doing
much "tightening under tension" : you will have whatever
tightness you
set the knot at, and forever hold your peace!
(And this should be fine.)
tightening [the clove hitch and then tying what I would describe
as a simple "locking knot" to prevent the hitch from coming loose.
Do you really have an issue with loosening (given my
remarks above, re "frictive" material --leather) ?!!
I'm surprised, if so.
This works, but I suspect that there is a cleverer and more effective way of doing it, and would welcome all suggestions.
I was expecting Xarax to suggest something that
incorporates a nipping turn (with
"Gleipnir" mechanics)
along the lines of a
bull hitch; let me verbally describe
an implementation/instantiation of this notion.
.:. The goal is to minimize turns in the precious space
of the stem --we'll have two--, and to lock a tensioned
knot --we'll invoke a
turNip (and as many funny terms
as we can
).
1) Take the line around the stem,
2) turn around the end (you're working with
other end) and tuck UNDER this turn to complete
a full (round) turn (just as one would to begin
tying
two half-hitches); now, take
3) the (working) end around again, *atop*
(i.e., nearer the top of the stem, aka away from
suction side) the first turn, and
4) bring out the working end
through the
"
turNip" formed in steo (2) --and thus, both
ends are now surrouned/nipped by this
turNip.
((So, the ends run in opposite directions, tangent
to the stem on opposite sides.))
5) Tighten by careful pushing on the
turNip and
pulling on one or both ends (as you feel works best).
Pulling on both ends will tend to press against the
constricting of the
turNip, so pulling on just
one end should work best at getting tension into
this nipping turn; maybe alternating pulling on ends
and pressing the turn against the stem, working it
tighter.
I don't know leather well, but possibly(?) it would
work best to use wet leather, gain enhanced slipping,
and then when dry it will be all the tighter?! (And
maybe it's possible to overdo this bit, even, if the
effects are dramatic? Again, I'm unsure about this.)
--dl*
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