How about this for a ZIF design:
The contacts take the form of tubes with slits cut axially all round leaving
rings uncut top and bottom to form a sort of tubular cage with no roof or floor.
If the top ring is twisted while the bottom one is held the tube will collapse
to a hyperboloid "cooling tower" shape which would grip a pin.
A suitable mechanism for the twisting would be an insulating collar (perhaps
ceramic or hard resin) running round the top of the socket with gear teeth on
the inner face that engage in either matching teeth in the top rings of the
sockets or perhaps the top of the slits.
So you would drop the tube in then twist the top of the socket 90 degrees or
so... Some form of latching would be needed of course.
Hope that makes some sort of sense...
I'll try and knock up a diagram when I get to my computer as this needs getting
out of my head properly now :)
Cheers,
Robin.
On 24 Jan 2014, at 21:30, Terry S <[email protected]> wrote:
> I don't think ZIF sockets are necessary -- too much complexity -- but a LIF
> (low insertion force) socket would be cool.
>
> Imagine a socket consisting of a solid round cylinder core, with spring
> tensioned contacts surrounding the core, that would press against the pins
> when the tube is placed over the core.
> Similar, non conducting "dummy" tensioned contacts could be on the opposite
> side of the pins, held in place by an outer ring. All contacts would be
> stamped concave to help position the tube.
>
> Some other mechanical retension method might be needed to secure the tube,
> perhaps a wire over the top like you've all seen in some equipment sockets.
>
> Who's got a 3D printer?
>
> Terry
>
>
> On Thursday, January 23, 2014 1:22:59 PM UTC-6, bani wrote:
>> I would definitely pay for ZIF IN-18 sockets :)
>>
>> -Dan
>>
>> On Thu, 23 Jan 2014, John Rehwinkel wrote:
>>
>> >> I caused it because I was swapping the tubes too much. The repeated
>> >> removal/insertions caused the tube to leak at the pins.
>> >>
>> >> I still want to rotate the tubes, but I need to come up with a surrogate
>> >> socket so I can swap the tubes without stressing the pins.
>> >
>> > A ZIF nixie socket! Now that would be quite a thing! That would also
>> > dodge the usual problem in home-made sockets of having the grippers both
>> > float and exert proper tension, by moving the tensioning function
>> > elsewhere. Time to start scribbling and thinking about milling out some
>> > interesting shapes.
>> >
>> > - John
>> >
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