1. 9/13/2015Robin Lafever BigBoss1

2. Fiber and Ferrule 9/13/2015Robin Lafever BigBoss2 Typical fiber and Ferrule: My current model is out of date. Jerry Edelstein has the current design.

3. Starting at the Focal Plane 9/13/2015Robin Lafever BigBoss3

4. Fiber and Positioner on the Focal Plane 9/13/2015Robin Lafever BigBoss4

5. 9/13/2015Robin Lafever BigBoss5 Model by Joe Silber and Christoph Schenk Fiber and Positioner The fiber jacket diameter has been greatly exaggerated to be able to see the fiber path

6. Ferrule / Positioner 9/13/2015Robin Lafever BigBoss6 The fiber jacket diameter has been greatly exaggerated to be able to see the fiber path

7. Fiber and Positioner 9/13/2015Robin Lafever BigBoss7 The fiber jacket diameter has been greatly exaggerated to be able to see the fiber path

8. 9/13/2015Robin Lafever BigBoss8

9. 9/13/2015Robin Lafever BigBoss9

10. Cluster of 32 Positioners fed by a connector, 1 cluster Assembly 9/13/2015Robin Lafever BigBoss10

11. Adapters 9/13/2015Robin Lafever BigBoss11

12. Connectors 9/13/2015Robin Lafever BigBoss12 The connector shown above is quite different from the ones currently in the concept model. Jerry Edelstein has ordered prototypes. The model will be updated when drawings become available.

13. Typical Cable 9/13/2015Robin Lafever BigBoss13 Loose-packed fiber sub-bundle 32 fibers plus a few load fibers Per bundle Polymer Core 12.3 mm dia. 16 x 3 mm Furcation tubes ‘gel tape’ winding PVC waterproof coating, ~30 mm dia. Aramid fiber tensile element Steel spiral-wrapped conduit

14. 9/13/2015Robin Lafever BigBoss14 Slit plate assembly with strain relief cable connection Through Spectrograph Room Through Telescope Across 25 mm Vane Into Focal Plane housing

15. Typical Cable Assembly End-to-end 9/13/2015Robin Lafever BigBoss15 Through Spectrograph Room 16 furcation tubes 1 x 16 cross section Through Telescope 16 furcation tubes Radial cross section Across 12.5 mm Vane 16 furcation tubes 2 x 8 cross section Into Focal Plane housing 512 fibers 32 fibers/furcation tube 16 furcation tubes

16. 9/13/2015Robin Lafever BigBoss16

17. 9/13/2015Robin Lafever BigBoss17

18. 9/13/2015Robin Lafever BigBoss18

19. 9/13/2015Robin Lafever BigBoss19

20. 9/13/2015Robin Lafever BigBoss20

21. Robin Lafever21

22. 9/13/2015Robin Lafever BigBoss22

23. 9/13/2015Robin Lafever BigBoss23