another strange board...

[server]

https://www.dropbox.com/s/do0k7ystcmmu1xg/T502A4.jpg?raw=1

The real action is in the upper-right, 0.8 square inches. I had to lay
that out myself because it\'s too hard to explain to anyone else.

The Brat did the rest of the layout.

Production wants the wings on the sides for fixturing. After the parts
are stuffed, we can lop them off.



--

Father Brown\'s figure remained quite dark and still;
but in that instant he had lost his head. His head was
always most valuable when he had lost it.

 

[Cydrome Leader]

jlarkin@highlandsniptechnology.com wrote:

https://www.dropbox.com/s/do0k7ystcmmu1xg/T502A4.jpg?raw=1

The real action is in the upper-right, 0.8 square inches. I had to lay
that out myself because it\'s too hard to explain to anyone else.

The Brat did the rest of the layout.

Production wants the wings on the sides for fixturing. After the parts
are stuffed, we can lop them off.

Why do the 2,3 and 4 markings have different orientations?

 

[Cydrome Leader]

jlarkin@highlandsniptechnology.com wrote:

https://www.dropbox.com/s/do0k7ystcmmu1xg/T502A4.jpg?raw=1

The real action is in the upper-right, 0.8 square inches. I had to lay
that out myself because it\'s too hard to explain to anyone else.

The Brat did the rest of the layout.

Production wants the wings on the sides for fixturing. After the parts
are stuffed, we can lop them off.

Why do the 2,3 and 4 markings have different orientations?

 

[Cydrome Leader]

jlarkin@highlandsniptechnology.com wrote:

https://www.dropbox.com/s/do0k7ystcmmu1xg/T502A4.jpg?raw=1

The real action is in the upper-right, 0.8 square inches. I had to lay
that out myself because it\'s too hard to explain to anyone else.

The Brat did the rest of the layout.

Production wants the wings on the sides for fixturing. After the parts
are stuffed, we can lop them off.

Why do the 2,3 and 4 markings have different orientations?

 

[server]

On Sun, 21 Nov 2021 03:10:21 -0000 (UTC), Cydrome Leader
<presence@MUNGEpanix.com> wrote:

jlarkin@highlandsniptechnology.com wrote:
https://www.dropbox.com/s/do0k7ystcmmu1xg/T502A4.jpg?raw=1

The real action is in the upper-right, 0.8 square inches. I had to lay
that out myself because it\'s too hard to explain to anyone else.

The Brat did the rest of the layout.

Production wants the wings on the sides for fixturing. After the parts
are stuffed, we can lop them off.

Why do the 2,3 and 4 markings have different orientations?

In the SMA footprints? Those are pin numbers, which can be made
visible during layout but don\'t get into the fab files. Actually, all
the parts show these pin numbers if you zoom up. It helps doing the
layout. I don\'t know how PADS decides to orient them.

Those three breakaway wings are freebie little PCBs. I might use the
long one for a TDR trace impedance test. I could make a capacitor out
of one to measure Er. Or something.



--

Father Brown\'s figure remained quite dark and still;
but in that instant he had lost his head. His head was
always most valuable when he had lost it.

 

[server]

On Sun, 21 Nov 2021 03:10:21 -0000 (UTC), Cydrome Leader
<presence@MUNGEpanix.com> wrote:

jlarkin@highlandsniptechnology.com wrote:
https://www.dropbox.com/s/do0k7ystcmmu1xg/T502A4.jpg?raw=1

The real action is in the upper-right, 0.8 square inches. I had to lay
that out myself because it\'s too hard to explain to anyone else.

The Brat did the rest of the layout.

Production wants the wings on the sides for fixturing. After the parts
are stuffed, we can lop them off.

Why do the 2,3 and 4 markings have different orientations?

In the SMA footprints? Those are pin numbers, which can be made
visible during layout but don\'t get into the fab files. Actually, all
the parts show these pin numbers if you zoom up. It helps doing the
layout. I don\'t know how PADS decides to orient them.

Those three breakaway wings are freebie little PCBs. I might use the
long one for a TDR trace impedance test. I could make a capacitor out
of one to measure Er. Or something.



--

Father Brown\'s figure remained quite dark and still;
but in that instant he had lost his head. His head was
always most valuable when he had lost it.

 

[server]

On Sun, 21 Nov 2021 03:10:21 -0000 (UTC), Cydrome Leader
<presence@MUNGEpanix.com> wrote:

jlarkin@highlandsniptechnology.com wrote:
https://www.dropbox.com/s/do0k7ystcmmu1xg/T502A4.jpg?raw=1

The real action is in the upper-right, 0.8 square inches. I had to lay
that out myself because it\'s too hard to explain to anyone else.

The Brat did the rest of the layout.

Production wants the wings on the sides for fixturing. After the parts
are stuffed, we can lop them off.

Why do the 2,3 and 4 markings have different orientations?

In the SMA footprints? Those are pin numbers, which can be made
visible during layout but don\'t get into the fab files. Actually, all
the parts show these pin numbers if you zoom up. It helps doing the
layout. I don\'t know how PADS decides to orient them.

Those three breakaway wings are freebie little PCBs. I might use the
long one for a TDR trace impedance test. I could make a capacitor out
of one to measure Er. Or something.



--

Father Brown\'s figure remained quite dark and still;
but in that instant he had lost his head. His head was
always most valuable when he had lost it.

 

[server]

On Sun, 21 Nov 2021 03:10:21 -0000 (UTC), Cydrome Leader
<presence@MUNGEpanix.com> wrote:

jlarkin@highlandsniptechnology.com wrote:
https://www.dropbox.com/s/do0k7ystcmmu1xg/T502A4.jpg?raw=1

The real action is in the upper-right, 0.8 square inches. I had to lay
that out myself because it\'s too hard to explain to anyone else.

The Brat did the rest of the layout.

Production wants the wings on the sides for fixturing. After the parts
are stuffed, we can lop them off.

Why do the 2,3 and 4 markings have different orientations?

In the SMA footprints? Those are pin numbers, which can be made
visible during layout but don\'t get into the fab files. Actually, all
the parts show these pin numbers if you zoom up. It helps doing the
layout. I don\'t know how PADS decides to orient them.

Those three breakaway wings are freebie little PCBs. I might use the
long one for a TDR trace impedance test. I could make a capacitor out
of one to measure Er. Or something.



--

Father Brown\'s figure remained quite dark and still;
but in that instant he had lost his head. His head was
always most valuable when he had lost it.

 

[Uwe Bonnes]

jlarkin@highlandsniptechnology.com wrote:

https://www.dropbox.com/s/do0k7ystcmmu1xg/T502A4.jpg?raw=1

The real action is in the upper-right, 0.8 square inches. I had to lay
that out myself because it\'s too hard to explain to anyone else.

The Brat did the rest of the layout.

Production wants the wings on the sides for fixturing. After the parts
are stuffed, we can lop them off.

How do you expect the rectengular outline in middle right to get produced?

--
Uwe Bonnes bon@elektron.ikp.physik.tu-darmstadt.de

Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt
--------- Tel. 06151 1623569 ------- Fax. 06151 1623305 ---------

 

[Uwe Bonnes]

jlarkin@highlandsniptechnology.com wrote:

https://www.dropbox.com/s/do0k7ystcmmu1xg/T502A4.jpg?raw=1

The real action is in the upper-right, 0.8 square inches. I had to lay
that out myself because it\'s too hard to explain to anyone else.

The Brat did the rest of the layout.

Production wants the wings on the sides for fixturing. After the parts
are stuffed, we can lop them off.

How do you expect the rectengular outline in middle right to get produced?

--
Uwe Bonnes bon@elektron.ikp.physik.tu-darmstadt.de

Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt
--------- Tel. 06151 1623569 ------- Fax. 06151 1623305 ---------

 

[Uwe Bonnes]

jlarkin@highlandsniptechnology.com wrote:

https://www.dropbox.com/s/do0k7ystcmmu1xg/T502A4.jpg?raw=1

The real action is in the upper-right, 0.8 square inches. I had to lay
that out myself because it\'s too hard to explain to anyone else.

The Brat did the rest of the layout.

Production wants the wings on the sides for fixturing. After the parts
are stuffed, we can lop them off.

How do you expect the rectengular outline in middle right to get produced?

--
Uwe Bonnes bon@elektron.ikp.physik.tu-darmstadt.de

Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt
--------- Tel. 06151 1623569 ------- Fax. 06151 1623305 ---------

 

[Lasse Langwadt Christensen]

søndag den 21. november 2021 kl. 02.47.11 UTC+1 skrev jla...@highlandsniptechnology.com:

https://www.dropbox.com/s/do0k7ystcmmu1xg/T502A4.jpg?raw=1

can you actually get a v-score made that doesn\'t go all the way across the board?

 

[Cydrome Leader]

jlarkin@highlandsniptechnology.com wrote:

On Sun, 21 Nov 2021 03:10:21 -0000 (UTC), Cydrome Leader
presence@MUNGEpanix.com> wrote:

jlarkin@highlandsniptechnology.com wrote:
https://www.dropbox.com/s/do0k7ystcmmu1xg/T502A4.jpg?raw=1

The real action is in the upper-right, 0.8 square inches. I had to lay
that out myself because it\'s too hard to explain to anyone else.

The Brat did the rest of the layout.

Production wants the wings on the sides for fixturing. After the parts
are stuffed, we can lop them off.

Why do the 2,3 and 4 markings have different orientations?

In the SMA footprints? Those are pin numbers, which can be made
visible during layout but don\'t get into the fab files. Actually, all
the parts show these pin numbers if you zoom up. It helps doing the
layout. I don\'t know how PADS decides to orient them.

Those three breakaway wings are freebie little PCBs. I might use the
long one for a TDR trace impedance test. I could make a capacitor out
of one to measure Er. Or something.

The snap-offs aren\'t special to anyone who has seen boards being
assembled. Add a logo and make them into keychains? I\'ve seen board scraps
turned into mechanical parts before too.

 

[TTman]

On 21/11/2021 15:47, Lasse Langwadt Christensen wrote:

søndag den 21. november 2021 kl. 02.47.11 UTC+1 skrev jla...@highlandsniptechnology.com:
https://www.dropbox.com/s/do0k7ystcmmu1xg/T502A4.jpg?raw=1


can you actually get a v-score made that doesn\'t go all the way across the board?

Err no...


--
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus

 

[server]

On 21 Nov 2021 12:05:19 GMT, Uwe Bonnes
<bon@hertz.ikp.physik.tu-darmstadt.de> wrote:

jlarkin@highlandsniptechnology.com wrote:
https://www.dropbox.com/s/do0k7ystcmmu1xg/T502A4.jpg?raw=1

The real action is in the upper-right, 0.8 square inches. I had to lay
that out myself because it\'s too hard to explain to anyone else.

The Brat did the rest of the layout.

Production wants the wings on the sides for fixturing. After the parts
are stuffed, we can lop them off.


How do you expect the rectengular outline in middle right to get produced?

The board house will route it out; radiuses are OK in the corners.
After assembly, we can cut through the v-scores to make the final
shape, a nearly square board with a rectangular cutout for the lower
cable.

Two of the SMA edge-launch connectors will be on a precise routed
edge. The one on the right will be on a cut-off v-score, so it won\'t
be a precise fit against the board edge and won\'t be a good
high-frequency match, but that\'s OK... it\'s a signal monitor with only
a 1 GHz requirement and no hard specs on signal beauty.

The next iteration:

https://www.dropbox.com/s/1nf2db5f7wb4xkz/T502A5.jpg?raw=1

The SMA connectors are now the Mueller microwave edge-launch parts,
pretty good without costing $40 each. For the best transition, the
pads have to be just at the edge of the board, marginally routed off.

The design review is tomorrow. Yuk.



--

Father Brown\'s figure remained quite dark and still;
but in that instant he had lost his head. His head was
always most valuable when he had lost it.

 

[server]

On Sun, 21 Nov 2021 07:47:21 -0800 (PST), Lasse Langwadt Christensen
<langwadt@fonz.dk> wrote:

søndag den 21. november 2021 kl. 02.47.11 UTC+1 skrev jla...@highlandsniptechnology.com:
https://www.dropbox.com/s/do0k7ystcmmu1xg/T502A4.jpg?raw=1


can you actually get a v-score made that doesn\'t go all the way across the board?

Can\'t see why not. We\'ll buy from the board house that will.

It could be converted into slots if nobody will do it. That would give
me a clean edge on the right-most SMA. It\'s just harder to draw.



--

Father Brown\'s figure remained quite dark and still;
but in that instant he had lost his head. His head was
always most valuable when he had lost it.

 

[Clifford Heath]

On 22/11/21 5:06 am, jlarkin@highlandsniptechnology.com wrote:

On Sun, 21 Nov 2021 07:47:21 -0800 (PST), Lasse Langwadt Christensen
langwadt@fonz.dk> wrote:

søndag den 21. november 2021 kl. 02.47.11 UTC+1 skrev jla...@highlandsniptechnology.com:
https://www.dropbox.com/s/do0k7ystcmmu1xg/T502A4.jpg?raw=1


can you actually get a v-score made that doesn\'t go all the way across the board?

Can\'t see why not. We\'ll buy from the board house that will.

Each snap must go right across the remaining board, or they can\'t snap
it. Any v-score will run a bit past its notional end-point, and mustn\'t
run into another board.

That\'s possible to ensure by insisting on the scores running across the
board.

 

[Lasse Langwadt Christensen]

mandag den 22. november 2021 kl. 00.00.42 UTC+1 skrev Clifford Heath:

On 22/11/21 5:06 am, jla...@highlandsniptechnology.com wrote:
On Sun, 21 Nov 2021 07:47:21 -0800 (PST), Lasse Langwadt Christensen
lang...@fonz.dk> wrote:

søndag den 21. november 2021 kl. 02.47.11 UTC+1 skrev jla...@highlandsniptechnology.com:
https://www.dropbox.com/s/do0k7ystcmmu1xg/T502A4.jpg?raw=1


can you actually get a v-score made that doesn\'t go all the way across the board?

Can\'t see why not. We\'ll buy from the board house that will.
Each snap must go right across the remaining board, or they can\'t snap
it. Any v-score will run a bit past its notional end-point, and mustn\'t
run into another board.

That\'s possible to ensure by insisting on the scores running across the
board.

but it seems they can run part way

https://youtu.be/orwKNB02Ado?t=30

 

[server]

On Mon, 22 Nov 2021 10:00:34 +1100, Clifford Heath
<no.spam@please.net> wrote:

On 22/11/21 5:06 am, jlarkin@highlandsniptechnology.com wrote:
On Sun, 21 Nov 2021 07:47:21 -0800 (PST), Lasse Langwadt Christensen
langwadt@fonz.dk> wrote:

søndag den 21. november 2021 kl. 02.47.11 UTC+1 skrev jla...@highlandsniptechnology.com:
https://www.dropbox.com/s/do0k7ystcmmu1xg/T502A4.jpg?raw=1


can you actually get a v-score made that doesn\'t go all the way across the board?

Can\'t see why not. We\'ll buy from the board house that will.

Each snap must go right across the remaining board, or they can\'t snap
it. Any v-score will run a bit past its notional end-point, and mustn\'t
run into another board.

That\'s possible to ensure by insisting on the scores running across the
board.

Sorry, I don\'t understand that. We will buy single boards, not panels,
so we can easily separate the little fixturing wings after
pick-and-place. The PCB house won\'t brickwall boards on their panel
because they route them apart.

We slice the v-scores on our big pizza cutter, not bend and snap.



--

Father Brown\'s figure remained quite dark and still;
but in that instant he had lost his head. His head was
always most valuable when he had lost it.

 

[Clifford Heath]

On 22/11/21 10:20 am, Lasse Langwadt Christensen wrote:

mandag den 22. november 2021 kl. 00.00.42 UTC+1 skrev Clifford Heath:
On 22/11/21 5:06 am, jla...@highlandsniptechnology.com wrote:
On Sun, 21 Nov 2021 07:47:21 -0800 (PST), Lasse Langwadt Christensen
lang...@fonz.dk> wrote:

søndag den 21. november 2021 kl. 02.47.11 UTC+1 skrev jla...@highlandsniptechnology.com:
https://www.dropbox.com/s/do0k7ystcmmu1xg/T502A4.jpg?raw=1


can you actually get a v-score made that doesn\'t go all the way across the board?

Can\'t see why not. We\'ll buy from the board house that will.
Each snap must go right across the remaining board, or they can\'t snap
it. Any v-score will run a bit past its notional end-point, and mustn\'t
run into another board.

That\'s possible to ensure by insisting on the scores running across the
board.

but it seems they can run part way

https://youtu.be/orwKNB02Ado?t=30

Yes. But I was giving a reason why some board houses won\'t do that.