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⇤ ← Revision 1 as of 2018-06-12 00:22:29
Size: 571
Comment:
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← Revision 2 as of 2018-06-12 00:33:58 ⇥
Size: 1350
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
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| * Took out the NAB from the wooden box. * Insert the NAB into the clean booth for the IXA chamber. |
* Took out the inner tower from the IXA chamber. * Was dangerous when it was hung up to float. * Inserted the NAB suspension into the inner tower. * Some screws were about to touch or going to touch the inner tower so we removed them. * There were several points to be noted so that the NAB suspension won't crash against the inner tower, so be careful. * Found everything are not fully consistent. Especially we needed to decide what should be used as reference. Today we used an array of through holes as the reference; the NAB suspension was somehow moved so that the interface through holes can overlap the screw hole array at the one side; the other side of the inner tower showed the through holes were totally useless to access the NAB suspension. * Then measured several parts. |
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| * Ladders to access the top of the NAB suspension outside of the chamber. * Ladders to access the top of the NAB suspension in the chamber. * A jig to keep the slings distance when the whole structure will be hung. |
== Issues == * We found installing the dampers is mostly impossible the current structure; !!!! Urgently discuss how to resolve this!!!! * We found the relative positions are not perfect and need to be resolved finally when the NAB would be suspended. |
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| == Next plan == * Install at Kamioka. |
== Next plans == * Insert the NAB+tower into IXA * Alignment and adjustment |
20180611
Today's activities
Workers: Akutsu, Ikenoue, Simon, L. Shimizu, Yokozawa
- Took out the inner tower from the IXA chamber.
- Was dangerous when it was hung up to float.
- Inserted the NAB suspension into the inner tower.
- Some screws were about to touch or going to touch the inner tower so we removed them.
- There were several points to be noted so that the NAB suspension won't crash against the inner tower, so be careful.
- Found everything are not fully consistent. Especially we needed to decide what should be used as reference. Today we used an array of through holes as the reference; the NAB suspension was somehow moved so that the interface through holes can overlap the screw hole array at the one side; the other side of the inner tower showed the through holes were totally useless to access the NAB suspension.
- Then measured several parts.
Wanted!
- Long ruler; use with a laser lever
Issues
- We found installing the dampers is mostly impossible the current structure; !!!! Urgently discuss how to resolve this!!!!
- We found the relative positions are not perfect and need to be resolved finally when the NAB would be suspended.
Next plans
- Insert the NAB+tower into IXA
- Alignment and adjustment