I was in a plant where they make a large number of boards on multiple
lines and I looked at their automatic test fixtures that probe the
boards... and all of them were wire wrapped! So maybe not "that"
retro! :-)
Dave
On 9/15/2016 8:28 PM, Ralph Stirling wrote:
You would have to suggest hand wiring :-). The proto capes I've seen
don't look big
enough for the dip buffer chips and connectors, but I'll look at that
option a little bit more.
I guess I could use generic perf board material while I'm at it. I
wonder if I have enough
wire-wrap sockets and wire to go really retro?
On Thursday, September 15, 2016 at 5:09:09 PM UTC-7, Charles
Steinkuehler wrote:
On 9/15/2016 5:27 PM, Ralph Stirling wrote:
> I have decided to use Machinekit running on BBB's in my
Manufacturing Systems
> course for
> senior ME students. I've been using old PC's running Linuxcnc
the past several
> years, and
> the old PC's have been failing. They also take up a lot of
space in the lab.
> I've got one
> Probotix PBX-BB cape, which is perfect for my needs, but Len is
out of stock on
> them, and
> won't have any before his design revision in 3-4 months. I have
external
> stepper drivers.
>
> Does anybody know of any capes that aren't already featured in
the wiki? I've
> looked at
> all of those, and they are either too expensive, unavailable, or
too fancy. I
> just need 3 or
> 4 channels of buffered step/dir, buffered home inputs, and a few
gpio's. I've
> got a design
> of my own underway, but only have about 3 weeks until I need to
have these
> running, and
> don't think I can pull off my custom design in that time. I
need eight or nine
> boards.
You could build your own manually using a prototype cape and a few
through-hole buffer chips. It sucks soldering 8-9 boards up by hand
with "flying wires", but it shouldn't take more than a few hours if
you're decent with a soldering iron and have the right tools (a good
set of diagonal cutting pliers and a nice wire stripper).
--
Charles Steinkuehler
[email protected] <javascript:>
--
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