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pinwheel corp bobs numbers 3/4/2002
 
 
Indexer II final cable installation data compared to bob's program results
all angular data and dimensions required for manufacture of cables
see color code page for number code correlation
all cable assemblies proof tested to 10,000 pounds
line loads measured with deflection type tensiometer
serial number specific to each assembly.
provides long term tracking ability with regards to manufacture and longterm inspection or replacement
 
 
CABLE
#
LETTER
DESIGNATION
LENGTH TAILSTOCK
ROTATION
HORIZONTAL HEADSTOCK
ROTATION
10,000
PROOF
TEST
MOCKUP
LINE
LOADS
INSTALLATION
LOADS
bobs
numbers
1 (A) : (B) 3' - 9 9/16 66 24.1 20.4 7/16" 3200 2450 224.24
2 (A) : (C) 6' - 3 15/16 -39.5 34.9 32.7 3/4" <1000 <1000 38.21
3 (A) : (D) 8' - 0 3/16 -12.2 4.9 58.9 1" 1700 1500 147.89
4 (C) : (D) 8' - 0 1/8 -48.1 18.4 46.4 1" <1000 <1000 66.34
5 (A) : D 6' - 1 1/16 -48.7 29.9 -45.8 3/4" 1750 1500 165.46
6 (B) : A 6' - 10 13/16 -47.2 26.3 75.1 7/8" 4800 3600 349.11
7 (B) : D 3' - 4 1/16 32.2 33.1 -34.4 7/16" 1750 1000 121.68
8 (C) : A 6' - 3 13/16 18.2 19 -51 3/4" <1000 <1000 62.19
9 (D) : C 5' -  1 1/4 54.3 42.7 -10.6 5/8" 2350 1800 215.65
10 A : B 9' - 6 3/8 2.8 15.3 65.7 1 3/16" <1000 <1000 78.06
11 A : C 7' - 1 3/8 -40.3 30.5 36.6 7/8" <1000 <1000 58.71
12 B : C 9' - 5 1/2 -58.4 42.5 -32.7 1 3/16" <1000 <1000 79.1
13 B : D 12' - 1 1/8 -76.7 29.7 14.1 1 1/2" 1700 1500 145.14
14 C : D 6' - 6 9/16 -19.6 16.4 69.2 13/16" 1650 1400 156.82
 
the chart below shows the resting line levels in the assembled sculpture, the yellow line are bob's numbers
note how the tension in the overall network increases proportionately
the pink line represents the installation at time of mockup
the blue line represents the installation at time of final assembly.
the difference stems from temperature variations and minute assemble differences.(I.e. the tendons were screwed in slightly further…)
 
 
 
 
INDEXERCABLE stu  

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