[Dsg-halla_ecal] DSG supermodule assembly update

[Marc Mcmullen]

Hi Albert,

Per our discussion yesterday, I have confirmed your SM2 parts order numbers (Parts for 4 new SM2 frames + 30 long spacer + 20 short threaded rods) and have included them, as parts, in the table below. These numbers (plus what we have on-hand) will make the 9 SM2 frames needed to complete the project. Please proceed with this order as soon as possible.

SM2 Frame parts inventory
SM2 Frame Parts Need for 9 frames       On-hand Parts needed
New parts order New parts order + On-hand
Spacers (long)  81      27      54      66      93
Set of flanges  9       5       4       4       9
Threaded rods (short)   36      10      26      36      46
Set of sides (long)     9       5       4       4       9

Regards,
Marc
________________________________
From: Marc Mcmullen
Sent: Tuesday, March 1, 2022 3:45 PM
To: dsg-halla_ecal at jlab.org <dsg-halla_ecal at jlab.org>
Subject: DSG supermodule assembly update

Hi Albert,

I have looked through the threaded rods you gave last week. There were only 2 cut and machined for SM2 modules. The rest are too long.

Here is a table of all parts needed to build 9 SM2 Frames (from February inventory of supermodules and parts). These frames are needed to complete the project. The "Need" column indicates the amount of each frame part which must be procured or fabricated.

SM2 Frame Parts
Need for 9 frames
On-hand
Need
Spacers (long)
81
27
54
Set of flanges
9
5
4
Threaded rods (short)
36
10
26
Set of sides (long)
9
5
4


Is there an update on the order for 600 springs, after this week we will not be able to assemble supermodules. I have cut all the ones you gave and glued them for assembly.

Until the springs arrive we will work on assembly of the 9 SM2 frames with the parts we have available, as well as measuring and sorting of the lead-glass assemblies.

Regards,
Marc

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