ToolHuts

Praktische tools voor nauwkeurig werk

Pijp Offset Klokpositie & Rotatie Calculator

Zet verticale en laterale offsets om naar klokposities aan het nabije en verre uiteinde en omtrekmarkeringen vanaf een vastgesteld referentiepunt.

Bereken de indeling, controleer het diagram en druk het resultaat af voor de werkplaats of bouwplaats.

mm
mm
mm
deg

Normally 0°. Use this to carry an established seam or fitting datum.

Near end (look with flow): 53.1°12Far end (look back): 306.9°12
Near-end clock53.1deg
Near wrap mark78.0mm
Far-end clock (looking back)306.9deg
Far wrap mark450.7mm
Offset-plane rotation53.1deg
True offset500.0mm

Angles use a clock-face convention: 0° at 12 o'clock, increasing clockwise. Near and far values describe the same physical plane from opposite viewing directions.

Werking

This is clocking, not another travel calculator. Rise and signed lateral displacement define the offset plane. Its rotation from 12 o'clock is atan2(lateral, rise), then the entered datum is added and normalized to 0–360°.

Worked example: the starting 300 mm rise and 400 mm right lateral form a 500 mm true offset and place the near-end plane at 53.1° clockwise from top. At the far end, viewed back toward the near end, the same physical plane reads 306.9°. Always mark which viewing direction each clock value belongs to.

The wrap mark converts that clock angle into tape distance around the actual OD: circumference × angle ÷ 360. Because a fabricator looking back from the far end sees clockwise direction mirrored, the far-end reading is 360° − the near-end reading.

Voorbeeld met huidige invoer

Het resultaat hierboven gebruikt precies deze waarden. Deze momentopname wordt bij het afdrukken opgenomen om de uitvoer met de oorspronkelijke metingen te controleren.

Vertical offset (+ up)
300 mm
Lateral offset (+ right)
400 mm
Actual pipe outside diameter
168.3 mm
Top datum clock angle
0 deg

Hoofdresultaat: Near-end clock: 53.1 deg.

Vóór gebruik van het resultaat

  • Measure from the datum or reference edge described by this tool, and do not mix inside, outside and centerline dimensions.
  • Keep inputs in the displayed units and preserve more precision than the final cutting or purchasing tolerance requires.
  • When the result is close to a limit, verify it with a test piece, field measurement, manufacturer drawing or qualified project professional.

Beperkingen

This establishes orientation marks only. It does not calculate elbow travel, weld shrinkage or fitting takeoff. The far-end conversion assumes both ends share the same physical top datum and the stated viewing directions; if your drawing uses plant north, pipe direction, or a different clock convention, reconcile that convention first.

Veelgestelde vragen

Can the lateral value be negative?

Yes. Positive means right and negative means left when looking from the near end along the direction of flow.