What do you mean by stubs?
The notches cut out of the corners?
There needs to be something to hold the pcb from sliding sideways. The
pin actually would do that well enough on one end, but since the pin is
far to one end, the other end would move too much (I think), and you
don't want two pins. So that little bit of skinnier pcb trapped between
those vertical edges at the ends is enough to do it.
And I think I will simplify that to just be 45 degree angles at the
corners instead of those little steps the way it is now.
That job could be done some other way, not just that way. There could be
a single notch in the middle of the ends, and matching ridge in the
carrier, and no walls at the corners of the carrier and no notches in
the corners of the pcb, for one possible example.
If you didn't already have a developed design with a lot of work already
in it, and you were aiming to have all components on one side anyway for
other reasons like manufacuring, then the carrier would be both stronger
and effortless to make if the parts were all on top instead of bottom.
The pcb has to lay pretty close to the bottom of the socket and so there
is not much room between the pcb and the floor. Plus then you could have
the hole for the polarity pin as long as you could make room between the
traces. The pin doesn't extend above the pcb, so you can have chips over
the hole, but not under it.
--
bkw
On 8/10/19 6:58 PM, Stephen Adolph wrote:
Thanks,
Why do you have the stubs for the molex on this drawing? I would have
thought that such things would be unneeded with the carrier.
I have to take a close look at length. I think it can work but with
changes.
On Saturday, August 10, 2019, Brian K. White <[email protected]
<mailto:[email protected]>> wrote:
Here is a messy pdf
http://tandy.wiki/images/c/c7/Pcb2molex8878_pcb_dims.pdf
<http://tandy.wiki/images/c/c7/Pcb2molex8878_pcb_dims.pdf>
