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

Zhenyu/Gerard and all, 

I just wanted to get a jump and get this suggestion out before the meeting. 
I've spoken with John Hammond regarding the modifications required to the 
current V2.1 T-Boards, and we agreed it will probably be a few hours of work 
per board - removing the duplicate components, and adding worst case ~8 
jumper wires, some of which need to cross to both sides of the board. 

If we create new gerbers to match the V3.0  T-Board schematic, we may be able 
to do a fast turn turnkey run. Getting approximate quotes from Sierra 
Circuits, who we've used for turnkeys before, it would be ~$2,600 to have 10 
PCBs fabbed, and stuffed for an 8-day turn. If this is something that Jianing 
and Gerard wouldn't have time to work on, John believes he can make the 
changes to the gerbers directly, and send the files out, if Gerard approves 
the changes listed.

If we were to also make 10 "test stand cables" using the new "purple" cable, 
we would be looking at ~$2,400.

It would cost another ~$1,350 to attach these cables to the t-board. 



This would all come to a total of $6,350. We may be able to get this price 
down a little bit if we got quotes from local fab houses as well, and by 
combining the job of making 10 "purple cable" assemblies and assembling them 
to the pcb - this is a rough number. 

I believe this may be a good option - we would have the new revision of the 
board with no bodge wires, we'd be using the production cable and testing 
with its dielectric properties, etc., a better representation of the final 
product; but it may be a tight deadline if we need it by mid-January. If you 
think this is something we'd be interested in pursuing I can start requesting 
quotes and see if we'd be able to have more definite numbers by the meeting 
on Thursday. 

Best,

Mike Capotosto

-----Original Message-----
From: Star-fst-l <star-fst-l-bounces AT lists.bnl.gov> On Behalf Of Ye, Zhenyu
Sent: Tuesday, December 3, 2019 1:00 PM
To: star-fst-l AT lists.bnl.gov
Subject: [Star-fst-l] Weekly FST meeting - 12/5/2019 9:30am BNL time

Dear all, 

We will have a weekly FST meeting this Thursday 9:30am BNL time. The meeting 
agenda and bluejeans info can be found at 
https://drupal.star.bnl.gov/STAR/blog/yezhenyu/forward-silicon-tracker-weekly-meeting

1. T-board and inner signal cable - Jianing Dong, Mike Capotosto, Gerard 
Visser 
Gerard is reviewing the changes to v2.1 T-board suggested by Mike. 

2. Mechanical Structure - Yi Yang, Han-sheng Li
Updates on the status of mechanical structure fabrication and assembly, 
cooling soft tube compatibility test, and transportation box design 

3. Module Assembly at Fermilab - Zhenyu Ye
Updates on module assembly fixture/tooling design/fabrication 

4. Simulation: Te-Chuan Huang, Krishan Gopal
Updates from Te-Chuan on FST geometry modeling 

If there is anything else to report/discuss, please let me know. 

Best
Zhenyu
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