Tony Duell wrote:
Or a
"duckbill" vice grip, available at welding supply shops and some auto
parts shops. Works nicely, and not too strong... A vice is OK but you
have to be really careful to listen for the clicks, the first one is the
connector seating, the second one is the connector shattering!
Actually, the first
2 clicks are the connector locks seating, the third
one is the connector breaking in half :-)
Jerome Fine replies:
Either you vice is very strong or you are - I have never been able to
apply that much pressure.
I've crimped dozens of IDC connectors, and I
nearly always use a 3"
(across the jaws) bench vice. Slip the cable into the connector, put the
connector between the jaws of the vice, and tighten just enough to hold
it. Check the alignment of the cable, then clamp it up and it's done.
I often use a high powered magnifying glass just to be sure that all the pins
are aligned with the cable before I tighten the vice. A bright light helps
as well. Also, my vice is a bare bones model which has just plain metal
jaws. But I rarely do more than 34 pin cables for disk drives. Sometimes
I do a 50 pin cable in which case I often need to do as much as possible
in the centre - then shift the connector first to one side then the other to
achieve a tight enough fit and apply enough pressure and finally finish up
back in the centre.
I've never used the 'press' type tools
that are shown in some catalogues
for small-production use, and which cost a few hundred pounds and up.
Doubtless they work well, and they'd be a lot faster (I guess) than using
the bench vice. But time is not that important to me as a hobbyist, and
I've got more important things to buy first.
I usually don't use that excuse - I just say that I am plain frugal or cheap -
which ever seems right at the time.-) Or I say that all expenses must be
offset by something else that I sell to justify the new purchase.
The hard part is taking old connectors off old cables - the 34/20 pin edge
connectors are usually easy. Getting the header off the other end is almost
always difficult - inexpensive and time consuming, but difficult.
Sincerely yours,
Jerome Fine