TKR Flex circuits Meeting
“They do not have a clear picture where to go”
Very slow progress, “at drift “
Our contact personnel is being replaced continuously
Date of restart of production is unclear
The plan is to let them finish parts in production up to a certain point, assumed to be hole drilling
The team members in the know expressed no confidence that Parlex would produce the GLAST LAT TKR flex circuits on a reasonable time scale
Status full-length prototype with Titan: Dave Nelson
5 C4 are on order, bare cable only, delivery first week in Dec
Coupons will be included
Visit next week by “Landing party” Esther, Dave Nelson, Nick?, Diane Colos (sp?) (GSFC),
Assembly of 2 cables by SLAC, 3 by vendor (Sentek) Dave R. credit card purchase
Parts inventory a problem: TKR manager and engineer don’t know where the parts went.
Buy commercial 0603 for SLAC assembly, and do not use flight thermistors
Give flight parts to vendors: Dave Rich
Separate the production of bare flex cables and their assembly
D. Rich will do Sole Source Flight orde of cables r: needs SOW (done), revised red-lined drawings (ready on Monday), Quote (RFQ), 20 parts with first set expedited
Assembly of flight cables: Competitive bid, Dave R. start now with RFQ
Status 2-piece prototype with Cirexx: Dave Nelson
5 C4 2-piece fabrication ordered, splicing is ordered separately, two-week turn-around, need date
Coupons will be included
Site visit next week, by Dave Nelson, Dave Rich (?), LAT Q/A and Nick (?)
Mechanical drawings are not started yet.
Will start with electrical drawings (Gerber files), and Thien needs the cut-lines from Mike Foss first.
After that, mechanical layout will start with C4 etc.
Dave and Martin will make new SOW for splicing cable + assembly (new LAT-doc)
Assembly at Sentek and parts issues same as above for Titan full length cables
Status of docs and drawings
Updated drawings are in checkprint form (long cables only!). The SOW version 3 is updated and in sign-off.
PARLEX
Restart Production ? David Rich ??
TITAN
Schedule site visit for 11/14 week Dave Nelson / Darren March asap
Flight order Titan (Sole source) RFQ Dave Rich /Persis Drell : 3 weeks
CIREXX
Date for delivery of C4 Dave Nelson
Schedule site visit for 11/14 week Dave Nelson / Darren March asap
Cut line on cables to Thien Mike Foss asap
Mechanical Layout Martin Norby 2 weeks
Electrical layout David Nelson 2 weeks
SOW for two-piece cable Dave Nelson / Martin Nordby 1 week
ASSEMBLY
Parts inventory Dave Rich / Dave Nelson/ Robert Johnson/ Lowell
Commercial 0603 resistors Dave Nelson 1 week
Commercial thermistors Dave Nelson 1 week
Commercial/Flight parts to Sentek for 6 cables Dave Rich 1 week
Commercial parts for SLAC for 4 cables Dave Rich 1 week
P.O for loading at Sentek (3) Dave Rich asap
Flight order assembly P.O., RFQ Dave Rich 3 weeks
10/29
PARLEX
Coupons ok? David Rich NO
Ship 8 cables to SLAC David Rich n.a.
Test 8 cables in vac, elect. Robert Johnson n.a.
Request 3 sets of blank cables David Rich n.a.
Assemble 3 sets of blank cables David Nelson n.a.
TITAN
Inform Nick of facts Persis Drell open
ask for coupons David Nelson closed
find outside assembly vendor David Nelson closed
CIREXX
Finish electrical layout David Nelson closed
Check layout (?) Martin Nordby ??
Ask for coupons David Nelson closed
Arrange for site visit David Nelson open
Mechanical Layout Martin Norby open
Electrical layout David Nelson open
find outside assembly vendor David Nelson closed
GENERAL
Update drawings David Rich in sign-off
Update SOW David Rich/ Darren Marsh in sign-off
Parts for outside vendor David Rich open
New P.O. vs. old (Parlex) Persis Drell open
find outside assembly vendor David Nelson closed
Request LAT Q/A to be part Persis Drell closed