Re: [Emc-users] Matrix Wiring

[John Figie]

How about wire wrap pins. Easy to rewire reliable low cost simple.

John Figie

On Wed, Jul 13, 2022, 3:33 PM andy pugh  wrote:

> On Wed, 13 Jul 2022 at 20:20, Chris Albertson 
> wrote:
> >
> > Maybe you asked the wrong question.
> >
> > I use a cheap plug that attaches to the vehicle and then makes the data
> > available over WiFi.  It works on EVERY vehicle.  BMW, Prius, GM and so
> on.
>
> I doubt that it will work for these vehicles, they are prototypes with
> all the CAN buses brought out to two separate OBD plugs on
> non-standard pinouts.
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1912
>
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Matrix Wiring

[andy pugh]

On Wed, 13 Jul 2022 at 20:20, Chris Albertson  wrote:
>
> Maybe you asked the wrong question.
>
> I use a cheap plug that attaches to the vehicle and then makes the data
> available over WiFi.  It works on EVERY vehicle.  BMW, Prius, GM and so on.

I doubt that it will work for these vehicles, they are prototypes with
all the CAN buses brought out to two separate OBD plugs on
non-standard pinouts.

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Matrix Wiring

[Chris Albertson]

Maybe you asked the wrong question.

I use a cheap plug that attaches to the vehicle and then makes the data
available over WiFi.  It works on EVERY vehicle.  BMW, Prius, GM and so on.

The way the company solved the issue was to run all the pins into a
microcontroller, the software then sorts out what kind of car is connected.
So you may not need a full matrix switch but just a small uP and CANbus
chips.  Or just buy the gadget I have for about $20.  It works well and I
can even drive a car on the freeway while a person in the passenger seat
looks at and record diagnostic data.   (No I can't recommend a brand as
they change day to day on Amazon.)  It is a very simple device that acts as
a CANbus/WiFi bridge.  All the "smarts" lives inside the app on the iPad or
phone.




On Wed, Jul 13, 2022 at 11:16 AM andy pugh  wrote:

> On Wed, 13 Jul 2022 at 18:20, Chris Albertson 
> wrote:
>
> > Or for that matter, use solder and shrink wrap and make up a cleaner
> > looking adapter cable, after you know what works.
>
> What works changes every couple of weeks as I move from one vehicle
> line to another.
> So I want something rewirable without much effort, though not
> something to be switched about several times a day.
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1912
>
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>


-- 

Chris Albertson
Redondo Beach, California

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Matrix Wiring

[andy pugh]

On Wed, 13 Jul 2022 at 18:20, Chris Albertson  wrote:

> Or for that matter, use solder and shrink wrap and make up a cleaner
> looking adapter cable, after you know what works.

What works changes every couple of weeks as I move from one vehicle
line to another.
So I want something rewirable without much effort, though not
something to be switched about several times a day.

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Matrix Wiring

[Chris Albertson]

All you really need to do is cut a $10 adapter cable in half.  Expose all
the wires.  Then on one part you attach a female socket to each wire and on
the other a male pin to each wire.  Then you can reconnect the cable any
way you like.

Or for that matter, use solder and shrink wrap and make up a cleaner
looking adapter cable, after you know what works.



On Tue, Jul 12, 2022 at 3:58 PM andy pugh  wrote:

> On Tue, 12 Jul 2022 at 19:49, Charles Steinkuehler
>  wrote:
>
> > Look for "pass through sockets".  These allow a pin header to insert and
> > pass through a connector, allowing you to "stack" multiple connectors on
> > the same pin (assuming the pin is long enough).
>
> These might work:
> https://uk.rs-online.com/web/p/pcb-sockets/6737418
>
> But then I am still looking at needing 30 of them costing £75 or so.
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1912
>
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>


-- 

Chris Albertson
Redondo Beach, California

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Matrix Wiring

[John Dammeyer]

If the goal is one connector to a different connector but with varying pinouts 
this is what I used to mirror either Bergerda AC Servo or my Harmonic Drive to 
the two RJ connectors for the STMBL Servo controller.   Or any other AC/DC 
Servo with non-standard DB-25 pinout. 

Wired straight through for default.  Cut traces between the headers on the 
bottom of the board for pins to change.   Use jumpers or wire wrap a different 
pinout.  Or put jumpers in to return to stock in the places where traces were 
cut.

John

> -Original Message-
> From: Charles Steinkuehler [mailto:char...@steinkuehler.net]
> Sent: July-13-22 4:45 AM
> To: andy pugh
> Cc: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Matrix Wiring
> 
> On 7/12/2022 5:53 PM, andy pugh wrote:
> > On Tue, 12 Jul 2022 at 19:49, Charles Steinkuehler
> >  wrote:
> >
> >> Look for "pass through sockets".  These allow a pin header to insert and
> >> pass through a connector, allowing you to "stack" multiple connectors on
> >> the same pin (assuming the pin is long enough).
> >
> > These might work:
> > https://uk.rs-online.com/web/p/pcb-sockets/6737418
> >
> > But then I am still looking at needing 30 of them costing �75 or so.
> 
> For a cheap/simple solution, just re-frame the problem slightly.
> 
> Use dual-row headers, one for each column (or row).  Wire one side of
> the header pins to the rows and the other side to the columns.  Use
> standard shorting jumpers to make the row/column connections you need.
> 
> So for a 4x4 array (A-D, 1-4) your PCB would look like the following
> (each character is an 0.025" pin):
> 
> A1 A2 A3 A4
> B1 B2 B3 B4
> C1 C2 C3 C4
> D1 D2 D3 D4
> 
> --
> Charles Steinkuehler
> char...@steinkuehler.net
> 
> 
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Matrix Wiring

[Charles Steinkuehler]

On 7/12/2022 5:53 PM, andy pugh wrote:

On Tue, 12 Jul 2022 at 19:49, Charles Steinkuehler
 wrote:


Look for "pass through sockets".  These allow a pin header to insert and
pass through a connector, allowing you to "stack" multiple connectors on
the same pin (assuming the pin is long enough).


These might work:
https://uk.rs-online.com/web/p/pcb-sockets/6737418

But then I am still looking at needing 30 of them costing £75 or so.


For a cheap/simple solution, just re-frame the problem slightly.

Use dual-row headers, one for each column (or row).  Wire one side of 
the header pins to the rows and the other side to the columns.  Use 
standard shorting jumpers to make the row/column connections you need.


So for a 4x4 array (A-D, 1-4) your PCB would look like the following 
(each character is an 0.025" pin):


A1 A2 A3 A4
B1 B2 B3 B4
C1 C2 C3 C4
D1 D2 D3 D4

--
Charles Steinkuehler
char...@steinkuehler.net


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Matrix Wiring

[Gregg Eshelman via Emc-users]

The previous line of Snap-On automotive diagnostic tools (prior to the 
introduction of CAN systems starting in 2004) had a lot of stuff built in, and 
plug-in modules to add various other features. But to fully access everything 
that was built in and in the modules required "keys" which were PCBs with a 
card edge connection.

Many of those keys were nothing but jumpers connecting various combinations of 
pins. Some had additional passive components. It should be possible to make one 
universal key with every component used on every key, and a bunch of DIP 
switches or jumpers to make it act like any of the keys.

What could be done for your project is a card slot with enough pins on each 
side, a PCB with contacts on both sides, and some small single board computer 
like a Raspberry Pi to manage how each pin on one side connects to a pin on the 
other side. Put one of the little touch screen displays on it, make a nice 3D 
printed case, and there ya go.

If you need to drastically alter the thing, yank it out of the slot connector 
and replace it with a new design without having to rebuild the whole thing.

Or go super simple. A PCB with the two connectors and two 0.1" pin headers and 
a bunch of jumper wires with a single socket on each end, like the ones used 
for connecting the power LED to PC motherboards.


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Matrix Wiring

[andy pugh]

On Tue, 12 Jul 2022 at 19:49, Charles Steinkuehler
 wrote:

> Look for "pass through sockets".  These allow a pin header to insert and
> pass through a connector, allowing you to "stack" multiple connectors on
> the same pin (assuming the pin is long enough).

These might work:
https://uk.rs-online.com/web/p/pcb-sockets/6737418

But then I am still looking at needing 30 of them costing £75 or so.

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Matrix Wiring

[Brent Loschen]

It's not the push-pin/patch cord kinda thingy you described, but how 
about simply using a component carrier and solder jumper wires to make 
the pin-pin cross connections.  You would wire as many carrier jumper 
boards as you have cable combinations.

example component carrier - https://www.peconnectors.com/component-carriers/

Then simply drop one of the jumper boards  into a ZIF socket that you've 
soldered the wires from each cable to each row of pins.  The ZIF socket 
pin -> wire connection would work best on a small perf board with 
holes/solder pads for a sturdier connection.
example ZIF socket - 
https://www.mouser.com/ProductDetail/3M-Electronic-Solutions-Division/224-5248-00-0602J?qs=RC2ne4458IIcDFg0luAdug%3D%3D


Brent

The ZIF socket would probably need to be soldered to a perf board to 
actually make those solder connections sturdy.

On 7/12/2022 3:40 AM, andy pugh wrote:

Not CNC related, but I thought that someone here might know the answer.

I want to make a rewirable adaptor (OBDII to DB15)

One neat way to do this would be with a matrix, where you plug something
into holes and that connects the row to the column.

As a CNC link (almost) I think that something like this was used on the MEC
Microsprint programmable lathes where things often called "diodes" were
plugged into holes to program the machine.

I feel that a couple of PCBs. spaced a small distance apart, could have
plated-through holes linked by "something" being plugged through them. The
problem being to find the "something" that will make contact with two holes
at the same time.

A single PCB and an array of jumpers would work, but that would be 480 pins
to keep track of

The plated-hole idea has 240 holes, but only needs 8 plugs to do the
programming I need.

2mm banana plugs do exist.
https://uk.rs-online.com/web/p/banana-connectors/7632907

But I am not sure if they will reliably connect two plated holes.





___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Matrix Wiring

[Charles Steinkuehler]

On 7/12/2022 7:47 AM, andy pugh wrote:

On Tue, 12 Jul 2022 at 13:39, Todd Zuercher  wrote:


Andy,

Just happened to be reading a servo drive manual yesterday that I think
mentions just the part your looking for.


...


"Mill Max P/N 8427" it is a single pin socket



Well, sort-of. The thing is that there would be 240 holes but only 8
connections needed, so having the plugs be the expensive bit makes more
sense.
And I would need a version where the inserted lead can pass through to the
second PCB.


Look for "pass through sockets".  These allow a pin header to insert and 
pass through a connector, allowing you to "stack" multiple connectors on 
the same pin (assuming the pin is long enough).


Stack two PCBs with the connectors in the same position but with one 
wired for rows and the other wired for columns and use individual pin 
headers to connect the matrix points you desire.


https://suddendocs.samtec.com/catalog_english/bcs.pdf

...then all you need is some long 0.025" square headers, but those are 
pretty easy to find.


--
Charles Steinkuehler
char...@steinkuehler.net


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Matrix Wiring

[John Dammeyer]

Since you aren't likely matrixing a number of outputs into one input like the 
one on that image of the S100 board I posted here's a simpler suggestion.
If you don't already have one buy a wire wrap tool and some 24g ww wire.
https://jonard.com/hand-wrap-tool-wsu-tool?v=626

Then a simple header of this style.
https://www.digikey.ca/en/products/detail/adam-tech/2PH2-18-UA/9831040

One side connected to the DB-15 important pins and the other to the OBD-2 
connector.  Instead of using shunt jumpers just run the WW wire between the two 
sides.  Reliable and still easy to change if you need to.

And if you have several configurations that you need to change make a number of 
small PC boards with the socket on it and on the back of it solder the jumpers 
in the pattern you need.   Now just swap in which PC board you pattern you are 
using. 
> -Original Message-
> From: andy pugh [mailto:bodge...@gmail.com]
> Sent: July-12-22 2:40 AM
> To: Enhanced Machine Controller (EMC)
> Subject: [Emc-users] Matrix Wiring
> 
> Not CNC related, but I thought that someone here might know the answer.
> 
> I want to make a rewirable adaptor (OBDII to DB15)
> 
> One neat way to do this would be with a matrix, where you plug something
> into holes and that connects the row to the column.
> 
> As a CNC link (almost) I think that something like this was used on the MEC
> Microsprint programmable lathes where things often called "diodes" were
> plugged into holes to program the machine.
> 
> I feel that a couple of PCBs. spaced a small distance apart, could have
> plated-through holes linked by "something" being plugged through them. The
> problem being to find the "something" that will make contact with two holes
> at the same time.
> 
> A single PCB and an array of jumpers would work, but that would be 480 pins
> to keep track of
> 
> The plated-hole idea has 240 holes, but only needs 8 plugs to do the
> programming I need.
> 
> 2mm banana plugs do exist.
> https://uk.rs-online.com/web/p/banana-connectors/7632907
> 
> But I am not sure if they will reliably connect two plated holes.
> 
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is designed
> for the especial use of mechanical geniuses, daredevils and lunatics."
> � George Fitch, Atlanta Constitution Newspaper, 1912
> 
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users



___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Matrix Wiring

[gene heskett]

On 7/12/22 11:37, Chris Albertson wrote:

These adaptors sell for about $10 but they are not rewireable.   I think
the first step is to buy both connectors.  Perhaps buy a $10 cable and cut
it in half.

I still have some old rewireable serial cables from the old days when we
used RS232 serial cables.  Ths is a small plastic box with a cable
coming out of each and.  Inside the box is a PCB with two sets of email
header pins on 01" spacing, The kit comes with a set of male-to mae jumper
cables and we conet the sets of sockets as you like.

Actually, it was better then that.  There were a set of 25 DIP switches and
if closed that connect the cables "one to one" and no jumper wire is
needed.  But if the switch was open yu used the jumper to connect any two
pins.

This worked back in the day of slow signals but would fail badly in today's
world of USB-C and HDMI where signals are in the GHz range.

Now Chris, you're giving me bad dreams, imagining what such a lashup looks
like on a TDR. Time Domain Reflectometer. A smith chart from a VNA would
looking like a damaged corkscrew.  TDR's do come in handier than the
turn latch on the outhouse door when looking for a bullet hole in 2000'
of 3.125" transmission line though. It can tell the tower crew where the 
hole

is within 3 or 4". Been there, done that, had to make the TDR though.


On Tue, Jul 12, 2022 at 2:45 AM andy pugh  wrote:


Not CNC related, but I thought that someone here might know the answer.

I want to make a rewirable adaptor (OBDII to DB15)

One neat way to do this would be with a matrix, where you plug something
into holes and that connects the row to the column.

As a CNC link (almost) I think that something like this was used on the MEC
Microsprint programmable lathes where things often called "diodes" were
plugged into holes to program the machine.

I feel that a couple of PCBs. spaced a small distance apart, could have
plated-through holes linked by "something" being plugged through them. The
problem being to find the "something" that will make contact with two holes
at the same time.

A single PCB and an array of jumpers would work, but that would be 480 pins
to keep track of

The plated-hole idea has 240 holes, but only needs 8 plugs to do the
programming I need.

2mm banana plugs do exist.
https://uk.rs-online.com/web/p/banana-connectors/7632907

But I am not sure if they will reliably connect two plated holes.

--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is designed
for the especial use of mechanical geniuses, daredevils and lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users






Cheers, Gene Heskett.
--
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page 



___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

[Emc-users] Matrix Wiring

[Roland Jollivet]

You don't say how often you need to change the jumpers, or how compact you
need this to be, or how easily they need to be changed.

But, if you have two pcbs that you can move far apart, then load one side
with pins, then bring them together, you could use something like this;
https://www.harwin.com/products/P70-2300045R/

There are many styles and brands of these 'test pins'

Roland



On Tue, 12 Jul 2022 at 11:44, andy pugh  wrote:

> Not CNC related, but I thought that someone here might know the answer.
>
> I want to make a rewirable adaptor (OBDII to DB15)
>
> One neat way to do this would be with a matrix, where you plug something
> into holes and that connects the row to the column.
>
> As a CNC link (almost) I think that something like this was used on the MEC
> Microsprint programmable lathes where things often called "diodes" were
> plugged into holes to program the machine.
>
> I feel that a couple of PCBs. spaced a small distance apart, could have
> plated-through holes linked by "something" being plugged through them. The
> problem being to find the "something" that will make contact with two holes
> at the same time.
>
> A single PCB and an array of jumpers would work, but that would be 480 pins
> to keep track of
>
> The plated-hole idea has 240 holes, but only needs 8 plugs to do the
> programming I need.
>
> 2mm banana plugs do exist.
> https://uk.rs-online.com/web/p/banana-connectors/7632907
>
> But I am not sure if they will reliably connect two plated holes.
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is designed
> for the especial use of mechanical geniuses, daredevils and lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1912
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Matrix Wiring

[John Dammeyer]

Something like this?

> -Original Message-
> From: andy pugh [mailto:bodge...@gmail.com]
> Sent: July-12-22 2:40 AM
> To: Enhanced Machine Controller (EMC)
> Subject: [Emc-users] Matrix Wiring
> 
> Not CNC related, but I thought that someone here might know the answer.
> 
> I want to make a rewirable adaptor (OBDII to DB15)
> 
> One neat way to do this would be with a matrix, where you plug something
> into holes and that connects the row to the column.
> 
> As a CNC link (almost) I think that something like this was used on the MEC
> Microsprint programmable lathes where things often called "diodes" were
> plugged into holes to program the machine.
> 
> I feel that a couple of PCBs. spaced a small distance apart, could have
> plated-through holes linked by "something" being plugged through them. The
> problem being to find the "something" that will make contact with two holes
> at the same time.
> 
> A single PCB and an array of jumpers would work, but that would be 480 pins
> to keep track of
> 
> The plated-hole idea has 240 holes, but only needs 8 plugs to do the
> programming I need.
> 
> 2mm banana plugs do exist.
> https://uk.rs-online.com/web/p/banana-connectors/7632907
> 
> But I am not sure if they will reliably connect two plated holes.
> 
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is designed
> for the especial use of mechanical geniuses, daredevils and lunatics."
> � George Fitch, Atlanta Constitution Newspaper, 1912
> 
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Matrix Wiring

[Chris Albertson]

These adaptors sell for about $10 but they are not rewireable.   I think
the first step is to buy both connectors.  Perhaps buy a $10 cable and cut
it in half.

I still have some old rewireable serial cables from the old days when we
used RS232 serial cables.  Ths is a small plastic box with a cable
coming out of each and.  Inside the box is a PCB with two sets of email
header pins on 01" spacing, The kit comes with a set of male-to mae jumper
cables and we conet the sets of sockets as you like.

Actually, it was better then that.  There were a set of 25 DIP switches and
if closed that connect the cables "one to one" and no jumper wire is
needed.  But if the switch was open yu used the jumper to connect any two
pins.

This worked back in the day of slow signals but would fail badly in today's
world of USB-C and HDMI where signals are in the GHz range.


On Tue, Jul 12, 2022 at 2:45 AM andy pugh  wrote:

> Not CNC related, but I thought that someone here might know the answer.
>
> I want to make a rewirable adaptor (OBDII to DB15)
>
> One neat way to do this would be with a matrix, where you plug something
> into holes and that connects the row to the column.
>
> As a CNC link (almost) I think that something like this was used on the MEC
> Microsprint programmable lathes where things often called "diodes" were
> plugged into holes to program the machine.
>
> I feel that a couple of PCBs. spaced a small distance apart, could have
> plated-through holes linked by "something" being plugged through them. The
> problem being to find the "something" that will make contact with two holes
> at the same time.
>
> A single PCB and an array of jumpers would work, but that would be 480 pins
> to keep track of
>
> The plated-hole idea has 240 holes, but only needs 8 plugs to do the
> programming I need.
>
> 2mm banana plugs do exist.
> https://uk.rs-online.com/web/p/banana-connectors/7632907
>
> But I am not sure if they will reliably connect two plated holes.
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is designed
> for the especial use of mechanical geniuses, daredevils and lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1912
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>


-- 

Chris Albertson
Redondo Beach, California

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Matrix Wiring

[andy pugh]

On Tue, 12 Jul 2022 at 13:39, Todd Zuercher  wrote:

> Andy,
>
> Just happened to be reading a servo drive manual yesterday that I think
> mentions just the part your looking for.

...

> "Mill Max P/N 8427" it is a single pin socket


Well, sort-of. The thing is that there would be 240 holes but only 8
connections needed, so having the plugs be the expensive bit makes more
sense.
And I would need a version where the inserted lead can pass through to the
second PCB.

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is designed
for the especial use of mechanical geniuses, daredevils and lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Matrix Wiring

[Todd Zuercher]

Andy, 

Just happened to be reading a servo drive manual yesterday that I think 
mentions just the part your looking for.  The manual was referring to adding 
through hole components (resistors and capacitors) for tuning the drive, and 
goes on to mention these solder free through hole terminals for mounting 
through hole items that need to be easily inserted and removed without having 
to resolder them.  The part was "Mill Max P/N 8427" it is a single pin socket 
that you solder into a through hole on a pcb that you can then insert a wire or 
through hole pin for a solder free connection.

Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street 
Dalton, Ohio 44618
Phone:  (330)828-2105ext. 2031

-Original Message-
From: andy pugh  
Sent: Tuesday, July 12, 2022 8:13 AM
To: Enhanced Machine Controller (EMC) 
Subject: Re: [Emc-users] Matrix Wiring

[EXTERNAL EMAIL] Be sure links are safe.

On Tue, 12 Jul 2022 at 13:04, Peter Blodow  wrote:

 The pins, that's the point, consisted of
> a thin solid core with 3 or 4 tiny springy 'blades' surrounding it 
> that made absolutely perfect contact.
>

 These sound very much like the "banana plugs" in the link in my first message.
 
https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fuk.rs-online.com%2Fweb%2Fp%2Fbanana-connectors%2F7632907data=05%7C01%7Ctoddz%40pgrahamdunn.com%7C9d1b6e4d2d894019a5da08da640044e7%7C5758544c573f47cebee96c3e0806fb43%7C0%7C0%7C637932249586426487%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7Csdata=b94en99BxsoB5%2BICVAiz4xsKYot6UAcEdt9li0T8ho4%3Dreserved=0

There are 1mm ones, but those appear to put the spring in the socket:
https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fuk.rs-online.com%2Fweb%2Fp%2Fbanana-connectors%2F3097546data=05%7C01%7Ctoddz%40pgrahamdunn.com%7C9d1b6e4d2d894019a5da08da640044e7%7C5758544c573f47cebee96c3e0806fb43%7C0%7C0%7C637932249586426487%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7Csdata=ZCIwYAc5Q2j3%2BRYb0TeQ7kjjz69elZllL98alCR0INg%3Dreserved=0

But, as I said, one set of spring contacts might only contact one hole.
To be perfect for this application the springs would need to be W rather than V 
shaped.
Or, so I think.

--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is designed for 
the especial use of mechanical geniuses, daredevils and lunatics."
- George Fitch, Atlanta Constitution Newspaper, 1912

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-usersdata=05%7C01%7Ctoddz%40pgrahamdunn.com%7C9d1b6e4d2d894019a5da08da640044e7%7C5758544c573f47cebee96c3e0806fb43%7C0%7C0%7C637932249586426487%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7Csdata=%2BJSH84Hrc7SDkpseFtayC5xR0QppSQSBtvaZVfSCho4%3Dreserved=0


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Matrix Wiring

[andy pugh]

On Tue, 12 Jul 2022 at 13:04, Peter Blodow  wrote:

 The pins, that's the point, consisted of
> a thin solid core with 3 or 4 tiny springy 'blades' surrounding it that
> made absolutely perfect contact.
>

 These sound very much like the "banana plugs" in the link in my first
message.
 https://uk.rs-online.com/web/p/banana-connectors/7632907

There are 1mm ones, but those appear to put the spring in the socket:
https://uk.rs-online.com/web/p/banana-connectors/3097546

But, as I said, one set of spring contacts might only contact one hole.
To be perfect for this application the springs would need to be W rather
than V shaped.
Or, so I think.

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is designed
for the especial use of mechanical geniuses, daredevils and lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Matrix Wiring

[Peter Blodow]

Andy,
I remember, long ago, having used some sort of multiple pin plug system 
where the pins (gold plated) were delivered separately from the plug 
body. The pins were then equipped with the wires, crimped and 
lock-fitted into the plug body. The pins, that's the point, consisted of 
a thin solid core with 3 or 4 tiny springy 'blades' surrounding it that 
made absolutely perfect contact. They were surely less than 2 mm thick. 
There was another kind (for higher currents), just tinned, but more than 
2 mm thick. I just can't remember the brand name ...

Peter


Am 12.07.2022 um 11:40 schrieb andy pugh:

Not CNC related, but I thought that someone here might know the answer.

I want to make a rewirable adaptor (OBDII to DB15)

One neat way to do this would be with a matrix, where you plug something
into holes and that connects the row to the column.

As a CNC link (almost) I think that something like this was used on the MEC
Microsprint programmable lathes where things often called "diodes" were
plugged into holes to program the machine.

I feel that a couple of PCBs. spaced a small distance apart, could have
plated-through holes linked by "something" being plugged through them. The
problem being to find the "something" that will make contact with two holes
at the same time.

A single PCB and an array of jumpers would work, but that would be 480 pins
to keep track of

The plated-hole idea has 240 holes, but only needs 8 plugs to do the
programming I need.

2mm banana plugs do exist.
https://uk.rs-online.com/web/p/banana-connectors/7632907

But I am not sure if they will reliably connect two plated holes.





___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Matrix Wiring

[andy pugh]

On Tue, 12 Jul 2022 at 11:34, Peter Hodgson 
wrote:

> Could you turn some brass ‘hollow top-hats’ with an ID sized for the bana
> plug, one soldered on each side of the through hole but not meeting in the
> middle. When the banana plug goes in it contacts both.


I don't see top hats adding anything (other than an awful lot of turning
work). The plated-through holes would make good contact with the right sort
of pin, I am just not sure that the right sort of pin exists.

It is possible that the bananas will work, but equally possible that the
spring contacts will only reliably contact one hole at a time.

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is designed
for the especial use of mechanical geniuses, daredevils and lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Matrix Wiring

[Peter Hodgson]

Could you turn some brass ‘hollow top-hats’ with an ID sized for the bana plug, 
one soldered on each side of the through hole but not meeting in the middle. 
When the banana plug goes in it contacts both.

> On 12 Jul 2022, at 10:41, andy pugh  wrote:
> 
> Not CNC related, but I thought that someone here might know the answer.
> 
> I want to make a rewirable adaptor (OBDII to DB15)
> 
> One neat way to do this would be with a matrix, where you plug something
> into holes and that connects the row to the column.
> 
> As a CNC link (almost) I think that something like this was used on the MEC
> Microsprint programmable lathes where things often called "diodes" were
> plugged into holes to program the machine.
> 
> I feel that a couple of PCBs. spaced a small distance apart, could have
> plated-through holes linked by "something" being plugged through them. The
> problem being to find the "something" that will make contact with two holes
> at the same time.
> 
> A single PCB and an array of jumpers would work, but that would be 480 pins
> to keep track of
> 
> The plated-hole idea has 240 holes, but only needs 8 plugs to do the
> programming I need.
> 
> 2mm banana plugs do exist.
> https://uk.rs-online.com/web/p/banana-connectors/7632907
> 
> But I am not sure if they will reliably connect two plated holes.
> 
> -- 
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is designed
> for the especial use of mechanical geniuses, daredevils and lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1912
> 
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

[Emc-users] Matrix Wiring

[andy pugh]

Not CNC related, but I thought that someone here might know the answer.

I want to make a rewirable adaptor (OBDII to DB15)

One neat way to do this would be with a matrix, where you plug something
into holes and that connects the row to the column.

As a CNC link (almost) I think that something like this was used on the MEC
Microsprint programmable lathes where things often called "diodes" were
plugged into holes to program the machine.

I feel that a couple of PCBs. spaced a small distance apart, could have
plated-through holes linked by "something" being plugged through them. The
problem being to find the "something" that will make contact with two holes
at the same time.

A single PCB and an array of jumpers would work, but that would be 480 pins
to keep track of

The plated-hole idea has 240 holes, but only needs 8 plugs to do the
programming I need.

2mm banana plugs do exist.
https://uk.rs-online.com/web/p/banana-connectors/7632907

But I am not sure if they will reliably connect two plated holes.

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is designed
for the especial use of mechanical geniuses, daredevils and lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users