i really think you are talking of other bits.
the ones i mean are not put in against solid surface.
they are stuck in the whole way, up to the upper flange.
they then stick out on the bottom.
from there are two other methods:
a) solder them on top, solder on bottom (remember a tiny end of the pipe sticking out).
, the bottom then will look like a soldered component wire but thicker.
b) "rivet" them in like hollow rivets. so the bottom gets like the top is with a flange.
this is done by the bungard tool.
soldering if you want (i would).
looks more professional i think.
have your rivets a flange at one end? i don't think so.
regards
st
11.05.2003 21:24:22,
JanRwl@... wrote:
>In a message dated 5/10/2003 2:50:02 AM Central Standard Time,
>stefan_trethan@... writes:
>
>> these cylinders look like pop rivets,
>
>Those are called "eyelets" and the conventional way to install them is to
>first make certain that your copper traces are shiny-clean, or tin/lead
>plated!, paint the top, at least, with appropriately-thinned "rosin flux"
>sold for the purpose, insert the "rivets", lay the "heads" (generally the
>"top") down on a steel plate, and push an awl-tip into each, spreading them
>tightly on the bottom surface of the hole. Then CAREFULLY solder them
>("sweat-solder") on top, wiping off any excess, so there is no "solder-lump"
>on the top, nor FILLING the hole (unless this was a via, only, not for a
>component-lead). If the eyelets you use are not TOO long (you are not using
>those for 1/8" boards on 1/16" stock, for example), soldering a
>component-lead in them, and the eyelet-bottom to the trace below can be done
>as you would solder any lead "on the solder-side".
>
>Seems I recall a firm-name "International Eylelets"? I got a sample-pack of
>VERY TINY gold-plated eylets from them years back, too small for anything but
>leads on a 1/8 W. resistor! Try a Google search! The firm KEPRO, which
>handles all kindsa PCB stuff surely has eylets, and/or can tell us where to
>go (yes, laff, if you must!). I also got a few hundred "we don't stock
>such; just happened to have these!" HUGE ones from a local surplus house
>(1/16" O.D., and the flange-O.D. was like 0.110!) tin-ELECTRO-plated, so
>there wasn't enough tin to "DO anything", and they were years old, so not
>excellently-solderable any longer. One must use experience, balance need
>with hassle, and tolerate one's own need to vent a gale of fetid wind, from
>time to time!
>
>Jan Rowland, Old Troll
>
>
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