Star-fst-l mailing list

[Zhenyu Ye <yezhenyu2003 AT gmail.com>]

Hi Gerard

We are late in getting these cables, which are needed for our 
pre-installation test. 

Please comment. 

Thanks,
Zhenyu

> On May 10, 2021, at 8:25 AM, Capotosto, Michael <capotosto AT bnl.gov> wrote:
> 
> 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
> <[valid for V3.1]  V2-1 Via Ref Des PCB Mapping.jpg><Pin Mapping Sheet FST 
> T-Board V3-1 12-1-2020.xlsx><T-Board Assembly Drawing.pdf><T-Board with 
> Pins.jpg>_______________________________________________
> Star-fst-l mailing list
> Star-fst-l AT lists.bnl.gov
> https://lists.bnl.gov/mailman/listinfo/star-fst-l