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Stans ZTR Alpha 400 - Finish front wheel. Add spoke tension data.
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krismolendyke committed Aug 18, 2013
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45 changes: 45 additions & 0 deletions stans-ztr-alpha-400/wheels.org
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Expand Up @@ -89,6 +89,51 @@
| Non-drive | 592 | 296 | 87616 | 54 | 27 | 729 | 32.2 | 1036.84 | 15984 | 3 | 32 | 0.38268343 | 2.4 | 287.35680 |
#+TBLFM: $2=remote(front-rim, @9$2)::$3=$2 / 2::$4=$3^ 2::$5=remote(front-hub, @4$2)::$6=$5/2::$7=$6^ 2::$9=$8^ 2::$10=2*$3*$6::$11=remote(front-wheel, @3$2)::$12=remote(front-wheel, @2$2)::$13=cos((720/$12)*$11);D::$14=remote(front-hub, @10$2)::$15=sqrt($4 + $7 + $9 - ($10 * $13)) - ($14 / 2)::@2$5=remote(front-hub, @4$2)::@2$8=remote(front-hub, @6$2)::@3$5=remote(front-hub, @5$2)::@3$8=remote(front-hub, @7$2)

** Spoke Tensions

*** Deflection Readings

Average spoke tension.

#+name:front-spoke-deflection
| Spoke | Left | Right |
|---------+------+-------|
| 1 | 19 | 19 |
| 2 | 19 | 18 |
| 3 | 19 | 18 |
| 4 | 19 | 19 |
| 5 | 18 | 18 |
| 6 | 20 | 18 |
| 7 | 19 | 19 |
| 8 | 19 | 19 |
| 9 | 18 | 19 |
| 10 | 19 | 19 |
| 11 | 19 | 18 |
| 12 | 19 | 19 |
| 13 | 19 | 19 |
| 14 | 18 | 19 |
| 15 | 20 | 19 |
| 16 | 19 | 19 |
|---------+------+-------|
| Average | 19 | 19 |
#+TBLFM: @18$2=vmean(@I..II);%.0f::@18$3=vmean(@I..II);%.0f

*** Deflection Tolerances

Relative spoke tension.

| Average | Lower Bound | Upper Bound |
|---------+-------------+-------------|
| 19 | 15.2 | 22.8 |
#+TBLFM: @2$1=remote(front-spoke-deflection, @II$2)::@2$2=@2$1*0.8;%.1f::@2$3=1.2*@2$1;%.1f

*** Final Results

| Average ([[file:tm-1-tension-meter-conversion-table.pdf][TM-1 Deflection Reading)]] | Average (KgF) | Target ([[file:ztr-rim-specifications.pdf][KgF]]) | Accuracy (%) |
|-----------------------------------+---------------+--------------+--------------|
| 19 | 133 | 125 | 6.4 |
#+TBLFM: @2$4=100*(($2/$3)-1);%.1f

* Rear Wheel

#+name:rear-wheel
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