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# 10 Jan 2020:
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--> Ask for **tentative-BOM** (for Schroff, CERN-stores) <br/>
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--> Check that **provided material** for actions B1, B2 is ok <br/>
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--> Check **progress** on Actions A1-9 <br/>
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--> Ensure **rad issues** are taken into account
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## New ACTIONS
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- **ACTION A10:** Tentative **BOM** to be provided (for Schroff, CERN-stores)
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----
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- **ACTION B3:** CERN to check which **materials** should not be installed in the tunnel and to confirm that plastics: PLA/ ABS/ photopolymeric raisins are ok
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## ACTIONS to be followed up
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- **ACTION A2:** **Metal plate** under design; to be delivered next week
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- **ACTION A4:** **Roof** design ongoing; **feet** added on the perforated bottom panel; cheap solution; 6 to 10 feet added to hold all the weight.
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Note that the perforated panels are anyway customized (not off-the-shelf) for the cutouts at 160 and 220mm
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- **ACTION A6:** Please have a look at the WR-switch **cable holder**
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![cable-holder](uploads/fbfada9cf439fee71f6b2848408be58f/cable-holder.jpg)
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- **ACTION A7:** Ongoing Autodesk model browser **descriptive names**
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- **ACTION A8:** Waiting for Schroff input on **colors and 6HP RTM** front panels
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- **ACTION A9:** **Anna** is back from holidays on Monday and will follow-up with Erik
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## Next steps:
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* Creotech corrects most of the the aforementioned issues
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* CERN reviews 3D model
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* In parallel Creotech purchases all the BOM; Anna and Erik will be in contact
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* After the 3D approval, Creotech writes the technical doc
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* Finally CERN reviews all the work-package output with the mechanical office
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## ACTIONS completed:
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- **ACTION A1:** Done; elements added
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- **ACTION A3:** Done; butterfly screw added
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- **ACTION A5:** Done; rails do have ESD protection (the metalic part is added as an extra); green rails for the 160mm power suppl; RTM rails available only in red
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- **ACTION B1:** Done; AWG-10 for 600W (12V, 50A) -- 6mm2 cross section area of copper, 5.1mm outer diameter including insulation
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- **ACTION B2:** Done; https://cernbox.cern.ch/index.php/s/0hkfPstk6pJq3lK
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# 7 Jan 2020:
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... | ... | @@ -12,14 +48,21 @@ |
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- **ACTION A1:** What about the **addition of the elements shown below**, that are present in the off-the-shelf crates, on the front and the back?
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![crate-rail-front](uploads/41932f0fe26e0d9da2b52949f2e1f7b7/crate-rail-front.png)
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![crate-rail-back](uploads/764b5dc619d8c1d2a6d16a6e929052b8/crate-rail-back.png)
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----> Done
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- **ACTION A2:** Addition of a metal plate protection of **230V cables for the RTMs**; check if it would disturb the External Power Supply cassette
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----> To be delivered next week
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- **ACTION A3:** Replace GND connection screw with **butterfly** type
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----> Done
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- **ACTION A4:** Add to the crate design **optional roof and feet**; an example shown here:
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![cryo-crate1](uploads/192b2d4938f2be8e0e6257033245e8b4/cryo-crate1.png) ![cryo-crate2](uploads/8eb44abee935fe744d328ab04421ca6d/cryo-crate2.png)
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----> Feet added on the perforated bottom panel; cheap solution; 6 to 10 feet added to hold all the weight.
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The perforated panels are customized for the cutouts at 160 and 220mm
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- **ACTION A5:** **Rails** to confirm they have the ESD protection;
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For power cards rails could be green, as in off-the-shelf crates;
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... | ... | @@ -27,22 +70,29 @@ It seems there are only red rails for RTMs, to be confirmed; ideally they should |
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![rails](uploads/b91ab6374189080f14444047f4332803/rails.jpg)
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----> Done. rails do have ESD protection (the metalic part is added as an extra); green rails for the 160mm power suppl; RTM rails available only in red
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- **ACTION A6:** Parts to keep **cables together** will be added, either off-the-shelf or 3D printed
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----> to follow up
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- **ACTION A7:** Autodesk model browser to have **descriptive names**, not just part numbers, if possible
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----> on going
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- **ACTION A8.1:** Creotech waiting for Schroff answer on **painting** options
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- **ACTION A8.2:** Creotech waiting for Schroff answer on **6HP RTM front-panel** availability
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----> no updates yet
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- **ACTION A9:** Creotech to **purchase all the BOM parts** for the first sample crate; Anna would contact Erik
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----> starts on Monday
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------------------------
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- **ACTION B1:** CERN will provide a number on the allowed cable **voltage drop** on 12V cables, 50A
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----> ok
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- **ACTION B2:** CERN will provide **STEP models** of the front panels of the system and peripheral boards and model of the FMC-nanoFIP
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----> ok
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- **ACTION B3:** CERN to organise internal review with Christos, Lalit, Matteusz, Kamil, Pieter, Paul, William, Greg, Eva
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## Discussion points:
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... | ... | |