Comparison of A, B, C conceptual drawings.

 

A

B

C

New property

non

Inner gas manifold

(inner frame)

Outside gas manifold

 

 

Problems

 

Similar to prototype
  1. Two roads of the gas tightness gluing between straw plane and bar.
  2. Holes into straw walls. Straw can be damaged during space installation.
  3. Gas tightness of the straw ends.
  1. Placed of two gas manifold.
  2. Installation of the capilar tube into end-plug.
  3. Gas tightness of the straw ends.

Reparability

Yes

Probability to damage the straw ends

Probability to damage the straw ends and end-plugs

Complex (cost) of the elements (preliminary)

1

0,95

1,1

Assembly time and man power (preliminary)

1

1,15

1,15

 

Resume: It seems, scenario A is preferential: more compact, less elements, simpler assembling, consists less new small R&D. Scenarios B and C are more complex and scare its bad repairability. All scenarios is similar to the motherboard organization, practically.

Improvement of the drawing need the discuss with motherboard developers. Sorry, but we don’t see the large advantages of the B and C scenarios under A.