Star-fst-l mailing list

[Gerard Visser <gvisser AT indiana.edu>]

hi Elke,
	To be clear, I suspect there is no 'mistake' here needing correction at all. I 
await partnumbers and drawings to get a clearer view on that.

        Gerard

On 11/10/2020 12:34 PM, Aschenauer Elke-Caroline wrote:
> trivial question, has anybody investigated what it would take to exchange the 
> connectors, instead of making patches to the system
>
> Cheers elke
>
> > On Nov 10, 2020, at 12:06, Gerard Visser <gvisser AT indiana.edu 
> > <mailto:gvisser AT indiana.edu>> wrote:
> >
> > Oops. Wrong attachment, I am very sorry. I meant this.
> >
> > On 11/10/2020 12:04 PM, Gerard Visser wrote:
> > > Dear Yi,
> > >     I think this is probably reasonable. But can you please document here in 
> > > reply the exact and complete partnumbers for the connector we'll use on the 
> > > hybrids, and the connector we'll use on the T-boards?
> > >     The intention has always been that the connectors are fixed to each other 
> > > by fixing screws. It is *not clear* to me that this would even have been 
> > > possible with the "Male and female straight SMT on PCB" style (in attached 
> > > picture here too). I think that was *not* the plan, and the 'mistake' is no 
> > > mistake.
> > >     But let's please reconfirm here with the exact full partnumbers, and if 
> > > you have drawings for those two exact partnumbers too that will be helpful 
> > > since the Nicomatic website doesn't seem to always have drawings available on 
> > > all the parts. I'm not sure.
> > >     Thanks, sincerely,
> > >         Gerard
> > > p.s. Filling under the connector around the solder joints with a suitable 
> > > epoxy is perhaps good. We have to be sure that the solder joints are good, 
> > > and are completely clean of flux, before doing that. I think so anyway. What 
> > > sort of solder and flux are to be used?
> > > On 11/10/2020 11:19 AM, Yi Yang wrote:
> > > > (I have some issues sending email to the STAR mailing list, so I also added 
> > > > the individual emails.)
> > > >
> > > > Hi Gerard,
> > > >
> > > > The short summary of what we discussed about the connector issue is that we 
> > > > purchased the WRONG connectors. Please see the drawings in the bottom on 
> > > > page 3 of the first attachment, Felix pointed out that we should use the 
> > > > middle one "Male and female straight SMT on PCB" instead of the right one 
> > > > "Male SMT and female on cable".
> > > >
> > > > The perfect solution will be to replace the screw parts to "V22 Straight 
> > > > jackpost" (the first item in the table), but it will take too much time. So 
> > > > we proposed to use epoxy to enhance the strength between the connector and 
> > > > hybrid, and this can be done later. What do you think?
> > > >
> > > > Cheers,
> > > > Yi
> > > >
> > > >
> > > >
> > > > +++++++++++++++++++++++++++++++++++++++++++++++++++
> > > > Yi Yang, Associate Professor
> > > > Department of Physics
> > > > National Cheng Kung University
> > > > Tainan, 701 Taiwan
> > > > E-Mail: yiyang AT ncku.edu.tw <mailto:yiyang AT ncku.edu.tw> 
> > > > <mailto:yiyang AT ncku.edu.tw>
> > > > Tel: +886-6-2757575 ext.65237
> > > > Fax: +886-6-2747995
> > > > Group Web: 
> > > > https://urldefense.com/v3/__http://phys.ncku.edu.tw/*yiyang__;fg!!P4SdNyxKAPE!VaMFil3kshLvWHsDR_n5U5dvsswj99qrhIginyvKd5J-r0_h_t_aVbC-2WAq$ 
> > > > +++++++++++++++++++++++++++++++++++++++++++++++++++
> > <Untitled.png>
>
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