Star-fst-l mailing list

["Capotosto, Michael" <capotosto AT bnl.gov>]

Hey Gerard,

 

Just following up. We’re asked to get this PO written up today, but I’m waiting to hear back on your testing.

 

All,

 

I’ve included all the attachments from this chain that were mentioned in previous mails in this chain, attached.

 

--Mike

 

From: Visser, Gerard <gvisser AT indiana.edu>
Sent: Wednesday, May 5, 2021 1:35 PM
To: Capotosto, Michael <capotosto AT bnl.gov>
Cc: Sun, Xu <xusun87 AT uic.edu>; Zhenyu Ye <yezhenyu2003 AT gmail.com>; Videbaek, Flemming <videbaek AT bnl.gov>
Subject: Re: Purple cable length, Assembly Quotes

 

sorry, yeah I will try to answer this today...

 

---

From: Capotosto, Michael <capotosto AT bnl.gov>
Sent: Wednesday, May 5, 2021 1:23 PM
To: Visser, Gerard <gvisser AT indiana.edu>
Cc: Sun, Xu <xusun87 AT uic.edu>; Zhenyu Ye <yezhenyu2003 AT gmail.com>; Videbaek, Flemming <videbaek AT bnl.gov>
Subject: RE: Purple cable length, Assembly Quotes

 

Hey Gerard,

 

Just following up.

 

Thanks,

 

Mike

 

From: Capotosto, Michael
Sent: Tuesday, May 4, 2021 4:49 PM
To: Visser, Gerard <gvisser AT indiana.edu>; Videbaek, Flemming <videbaek AT bnl.gov>
Cc: Sun, Xu <xusun87 AT uic.edu>; Zhenyu Ye <yezhenyu2003 AT gmail.com>
Subject: RE: Purple cable length, Assembly Quotes

 

Hey Gerard, Flemming, All,

 

I’ve gotten a quote back from Kevin. It’s $289 even for assembly of new boards, same cost for the boards requiring rework.

 

That’s a grand total of $13,872.00 plus whatever remaining materials we need (some wire, ring terminals, etc), delivery 2-3 weeks from when the order is dispatched.

 

 

Gerard,

 

Did you have a chance to take look at the pins, and about a solution for the 22awg power wires?

 

--Mike

 

From: Visser, Gerard <gvisser AT indiana.edu>
Sent: Monday, May 3, 2021 7:06 PM
To: Capotosto, Michael <capotosto AT bnl.gov>; Videbaek, Flemming <videbaek AT bnl.gov>
Cc: Sun, Xu <xusun87 AT uic.edu>; Zhenyu Ye <yezhenyu2003 AT gmail.com>
Subject: Re: Purple cable length, Assembly Quotes

 

hi Mike,

I haven't t tried to do anything with these pins yet. I'm a little surprised if they easily break off the wire, but I bet I will find it is as you say. I want to experiment with this myself before trying to comment on it though - hopefully can do tomorrow.

 

I think the idea to have a bundle heatshrink (or anything else that similarly holds the bundle together) may be nice.

 

  GV

 

---

From: Capotosto, Michael <capotosto AT bnl.gov>
Sent: Monday, May 3, 2021 6:59 PM
To: Visser, Gerard <gvisser AT indiana.edu>; Videbaek, Flemming <videbaek AT bnl.gov>
Cc: Sun, Xu <xusun87 AT uic.edu>; Zhenyu Ye <yezhenyu2003 AT gmail.com>
Subject: RE: Purple cable length, Assembly Quotes

 

Hey Gerard,

 

That’s right – we could rework that end as well to make them all consistent. It’s very easy to insert the pins with solder in the hole already.

 

 

I’ve been doing some playing with the pins…

 

The wire was still very easy to bend and break with the pin and a piece of standard heatshrink over it, I was able to flex it a few times and then it broke free.

 

The pins are also very delicate, if bent slightly they’ll break right off.

 

I had some of this 3:1 “marine”/dual wall/adhesive lined shrink sleeve in my car…The attached picture shows a number of pins soldered to the board, each pin has a piece of standard heatshrink over it (the yellow showing underneath). I put a piece of this dual wall over it, and it makes a very rigid joint.

 

The heat shrink is certainly excessively long in the picture – but I’m thinking if we do the same thing with shrink sleeve perhaps ¼” above the height of the pins, that’ll work to secure the wire and prevent flexing at the joint.

 

I tried to use an individual tube on each pin with this dual wall but it’s just too thick with the spacing of each pin.

 

As far as rework/repairs later? It’s a bit tricky, but the tubing does come off when scored and heated to help melt the adhesive.

 

What are your thoughts?

 

--Mike

 

From: Visser, Gerard <gvisser AT indiana.edu>
Sent: Monday, May 3, 2021 3:57 PM
To: Videbaek, Flemming <videbaek AT bnl.gov>; Capotosto, Michael <capotosto AT bnl.gov>
Cc: Sun, Xu <xusun87 AT uic.edu>; Zhenyu Ye <yezhenyu2003 AT gmail.com>
Subject: Re: Purple cable length, Assembly Quotes

 

hi Mike,

So question about light gold pins is moot? Anyways, I think if that should be necessary it is probably OK, just not preferred. We should not unplug/plug these connectors too much anyway, I hope.

 

For the existing units to be shortened, will we use the new wire pins to solder wires to PCB, or not? I am not sure which way is best. With the wire pins it should be much more reliable. But of course any rework action can also cause problems. What do you think?

 

     Gerard

 

 

---

From: videbaek <videbaek AT bnl.gov>
Sent: Monday, May 3, 2021 3:15 PM
To: Capotosto, Michael <capotosto AT bnl.gov>
Cc: Visser, Gerard <gvisser AT indiana.edu>; Sun, Xu <xusun87 AT uic.edu>; Zhenyu Ye <yezhenyu2003 AT gmail.com>
Subject: Re: Purple cable length, Assembly Quotes

 

Hi Mike,

I do think we are short on time - so if they could do assembly in ~2 wks
it would be good.
If it would take longer we could, if possible, consider phased delivery
that would work for us too.
I suspect this will have to go on an PO so we will have to consider the
procurement time too.


Flemming



On 2021-05-03 14:33, Capotosto, Michael wrote:
> Gerard, Correction - I had 350 of the 173112-0224 In a box with other
> T-Board parts. I have a total of 1,850 pins so we have plenty of
> spares for the production of 40 units. If we want to shorten the
> existing 8 we won't have any spares (unless KC Electronics has some
> parts leftover from the last batch).
>
> --Mike
>
> -----Original Message-----
> From: Capotosto, Michael
> Sent: Monday, May 3, 2021 2:22 PM
> To: videbaek <videbaek AT bnl.gov>; Visser, Gerard <gvisser AT indiana.edu>
> Cc: Sun, Xu <xusun87 AT uic.edu>; Zhenyu Ye <yezhenyu2003 AT gmail.com>
> Subject: Purple cable length, Assembly Quotes
>
> Hey Flemming, All,
>
> I've added Gerard in as well.
>
> Flemming,
>
> We have 40 new T-Boards that Zhenyu shipped, awaiting purple cables.
>
> Do I understand correctly that we will want 18pcs at 64", and 18pcs at
> 76" - is this correct? (Plus 2 of each for spares)
>
> We'd also want a second quote to shorten the existing 8 cables, 4 at
> 76" and 4 at 64"?
>
> Do we have a date we need the cables by? I know we're running short on
> time so it'd help to give a specific due date.
>
>
> Gerard,
>
> I just went through the "parts kit" for the purple cables. We have
> parts on hand to make 40 cables, and we have only 40 T-Boards.
>
> I ordered a few spare backshells and d-sub housings (in-stock parts)
> (42 of each in-hand).
>
> The D-sub contacts are an issue - I have enough pins for 40 assemblies
> plus 20 spare pins. If memory serves, I initially ordered for 48
> T-Boards + 10% spares...I've followed up with KC Electronics, it's
> possible they kept spare parts leftover at the end of the last batch
> of assembly.
>
> The Molex 173112-0223 Is in-stock, I ordered 300 to have on hand in
> case we need to use them. These differ from the 173112-0224 that we
> were using in that they have only a 20um gold plating, vs the 80um on
> the xx224. Do you think it would be an issue to use these thinner
> plating pins if needed? It appears they're both rated for 500
> insertions. The xx224 isn't going to be in stock until June.
>
> --Mike
>
>
>
>
> -----Original Message-----
> From: videbaek <videbaek AT bnl.gov>
> Sent: Monday, May 3, 2021 1:46 PM
> To: Capotosto, Michael <capotosto AT bnl.gov>; Sun, Xu <xusun87 AT uic.edu>;
> Zhenyu Ye <yezhenyu2003 AT gmail.com>
> Subject: purple length
>
> Hi Mike, Xu, and Zhenyu
>
> This is my final proposal for cables. Based on the actual measurements
> and the CAD measurements.
>
> The distribution of measured cable length are in the plot Felix
> measurements)
>
> Final proposal is to divide into two groups 47-58"  i.e. 9 cables.
> These should be 5.5" longer due to the loop.
> Uncertainty is probably around one inch.
> Two different measures by Felix gives #1 from 57.5 or 58.5. So this
> group can be covered by length 64".
>
> The longest cable was originally 73.5" , but was measured to have an
> excess length of 6.5" from measurements from t-board to end of cable
> tray. Suggest to take credit for 3" so that length should be
> 73.5"-3"+5.5" == 76.0", and this should cover the other group of 9
> have two cables lengths  76" and 64", and we should have equal amount
> of each For installation need 18 cables in each group.
>
> I hope this is clear and that we agree. I also believe the length is
> that of the cable.
>
>
> Mike can you create a request for quote that includes assembly of
> cables with the T-boards that we have ?
> Can you please circulate the quote before submitting for signoff.
> Please also remind me how many blank  final version T-boards we have.
>
> best Flemming
>
>
>
>
> --
> Flemming Videbaek
> senior scientist
> videbaek @ bnl.gov
> Brookhaven National Lab
> Physics Department
> Bldg 510D
> Upton, NY 11973
>
> phone: 631-344-4106
> cell     :  631-681-1596

--
Flemming Videbaek
senior scientist
videbaek @ bnl.gov
Brookhaven National Lab
Physics Department
Bldg 510D
Upton, NY 11973

phone: 631-344-4106
cell     :  631-681-1596

Attachment: [valid for V3.1] V2-1 Via Ref Des PCB Mapping.jpg
Description: [valid for V3.1] V2-1 Via Ref Des PCB Mapping.jpg

Attachment: Pin Mapping Sheet FST T-Board V3-1 12-1-2020.xlsx
Description: Pin Mapping Sheet FST T-Board V3-1 12-1-2020.xlsx

Attachment: T-Board Assembly Drawing.pdf
Description: T-Board Assembly Drawing.pdf

Attachment: T-Board with Pins.jpg
Description: T-Board with Pins.jpg