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Male to Female socket connection . . . solder type?

Trash80toHP_Mini

NIGHT STALKER
I'm getting ready to do what I've been calling the "Machine Pin Hack" to a couple of boards and I'd like some advice on how to go about getting the best solder joint.

Machine pins are:

___very high quality, reliability and priced alternatives to standard pin/socket connections . .

___they consist of snap-off plastic packaged SIP or DIP rows of lathe turned(?) conical socket/soldertail pins . . .

The "Machine Pin Hack" mates these conical sockets to the soldertail/solder "cones" on the underside of a thru-hole PDS, NuBus, etc. slot or socket connection.

Question:

I've been planning to fill the of the Machine Pin's conical female cones with solder paste and then soldering/re-flowing each connection, mating the solder of the PCB with the solder paste in the machine pin.

Will this method give me a strong, reliable connection for this soldertail to pin conversion? :?:

I have also considered:

___filling the cones with flux and using standard leaded solder.

___tinning the insides of the Machine Pin's cones with standard solder.

___tinning the insides of the Machine Pin's cones with low temperature solder, similar to Chip-Quick.

Any suggestions from experienced rework a/o basic soldering technique gurus would be much appreciated by this soldering noob.

 

24bit

Well-known member
I was only using 60/40 tin-lead or 60/38/2 tin-lead-copper solder back than (no such new age stuff).

Did not see much difference in reliability concerning the solder.

The main problem with such small beasts seems to me getting the solder stick to the machine pin to avoid "cold" connections.

I would try tinning male and female with electronic solder and get it hot enough to join without burning something.

I have some machine pin srings still in my crap box, but age teached me to leave them alone :) .

 

Trash80toHP_Mini

NIGHT STALKER
Thanks so much, comrade!

Since I'm reflowing the solder on the underside of the IIsi' PDS connector to mate with the female side of the Machine Pins, is there any point in tinning the existing solder on the PDS pins?

I'd hate to have to do this because the machine pin strips all but snap into place when pressed onto the soldertails of the PDS.

 

24bit

Well-known member
If the connectors are tinned already from de-soldering, there would be no point in doing it again.

If everything is prepared, you may want some thin soldering wire (0.3mm), just in case the machine pins are looking a bit naked.

Hope all goes well JT, without burned fingers or else. :)

 

Trash80toHP_Mini

NIGHT STALKER
Thanks, been there, done that, preparing for it to be happening again sometime soon . . . :-/

Nothing has been de-soldered for this one. I'm taking about the factory wave(?) soldered underside of the SuperIIsi™ MoBo's PDS leaving room the for the Rocket 33/SCSI II Daughtercard topside. [;)] ]'>

I think I'll practice by doing this hack on one of my spare DuoDock Gemini Cards. If that Hack works, I'll have TWO NuBus Slots!

 
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