Orientation or Bolt-Hole Rotation-Error Reference: Difference between revisions
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[[File:KB 321.png|center| | [[File:KB 321.png|center|400px]] | ||
<div style="margin-top:10px; font-weight:bold; font-size:95%; color:#333;">Bolt-hole rotation reference baseline</div> | <div style="margin-top:10px; font-weight:bold; font-size:95%; color:#333;">Bolt-hole rotation reference baseline</div> | ||
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<td style="width:50%; vertical-align:top; background:#ffffff; border:1px solid rgba(128,128,128,0.25); border-radius:6px; padding:14px; text-align:center;"> | <td style="width:50%; vertical-align:top; background:#ffffff; border:1px solid rgba(128,128,128,0.25); border-radius:6px; padding:14px; text-align:center;"> | ||
[[File:KB 322.png|center| | [[File:KB 322.png|center|300px]] | ||
<div style="margin-top:10px; font-weight:bold; font-size:95%; color:#333;">Two-holes-square zero reference configuration</div> | <div style="margin-top:10px; font-weight:bold; font-size:95%; color:#333;">Two-holes-square zero reference configuration</div> | ||
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Latest revision as of 08:06, 13 October 2026
Flange Orientation and Bolt-Hole Rotation Error
Understanding reference baselines, top dead centre (T.D.C.) rules, and two-holes-square conventions in automet® FAB.
Flange Orientation Conventions
Flange orientation or bolt-hole rotation error in automet® FAB is evaluated against strict reference baselines:
- Grid North reference: Applied when the flange centerline is within 10° of vertical.
- Top dead centre (T.D.C.) reference: Applied as the reference baseline for all other flange orientations.
- Zero reference alignment: Standardized to a two-holes-square configuration.
 Bolt-hole rotation reference baseline
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 Two-holes-square zero reference configuration
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