Ron(UK) wrote:
jakdedert wrote:
N Cook wrote:
Ron(UK) wrote in message
...
N Cook wrote:
Ron(UK) wrote in message
...
N Cook wrote:

Can anyone think of a source for thin wall ferrule / coupler to
solder
or
probably glue over a butt join between mouse and 2 Cu wires, of
these
sorts
of dimensions.
Try a fishing tackle shop, ask to look at trace crimps.

Ron(UK)
Ta, the nearest to a solution so far. 0.8mm internal bore seems the
smallest they go to. Grinding a lead-in chamfer on the leading edge ,
and
feeding through a tiny funnel of talcum powder may just work.

Now what to do with the other 49 little crimps. They seem to be brass
with
a coating of dull varnish to dull them down for fishing purposes.
We use them in the theatre, they are by far the best way of joining or
putting loops in fine fishing line.

Ron(UK)

For swinging/flying actors around the stage - Peter Pan fashion ?

Not a good idea to put *any* splices in those cables. Better to
simply replace the whole lot if too short for some reason. I was
helping rig a lighting truss to which someone had affixed a 3'x12'
wood and plastic sign. The initial installation left the sign too
high, so the decorators simply spliced in additional cable using
ferrules and a swaging tool. I had six folks on the ground holding
the free ends of blocks & falls (more commonly known as block and
tackle), while my head rigger was above, securing each in turn.

As he did each one, there was inevitably a small amount of slack let
out...nothing serious, but each connection bumped down a little less
than an inch when the slack was let off and secured.

On the second point, when the 'bump' happened, one ferrule failed.
That end of the sign came swinging down in an arc with an audible
WHOOSH! right past everybody's face! To their credit, nobody let go
of their respective ropes, but the free end of the sign missed one
poor lady by less than a couple feet.

Once it had swung past vertical, the other end let go as well, and the
whole thing crashed at our feet and shattered. No injuries, but some
wardrobe changes were in order once the truss was let back down.

No splices, please....


Indeed. There are very strict and specific regulations for the flying
of any structure in theatreland. Fishing line is only used for very
lightweight materials such as scrims and holding back swags etc.
Anything of any substance must be flown using steel rope and the proper
fittings applied in a precise manner. Anything flown above 2 metres must
have at least one secondary safety bond to something that isn't going to
come down.


Ron(UK)
Indeed...not always done, however in the case of signage. Our (my)
liability in this case was not properly inspecting the work of another
contractor...complicated by the fact that it was another 'trade'
organization. In fact, we should have crossed that trade boundary and
done the work ourselves (which we in fact did, after the fact...once
they rebuilt the sign).

jak