ToolHuts

Outils pratiques pour un travail de précision

Générateur de Gabarit de Cercle de Perçage

Entrez un diamètre de cercle de perçage et un nombre de trous pour générer un gabarit imprimable grandeur nature avec repère d'étalonnage.

Calculez la disposition, vérifiez le diagramme, puis imprimez le résultat pour l'atelier ou le chantier.

mm
mm
°

rotation of the first hole

mm

0 for none

12345BCD 114.3 mm

How it works

Holes are placed at equal angular intervals around the bolt circle diameter (PCD), starting from your chosen start angle. Print at 100% scale and the hole centers will be exactly the entered distances apart - center-punch through the marked crosshairs.

Worked example: six holes on a 100 mm PCD are spaced every 60 degrees, with each center 50 mm from the circle center. Changing the start angle rotates the entire pattern without changing spacing.

Before drilling

Verify the 10 mm calibration square, align the printed center with the workpiece datum, and check one opposite-hole or chord measurement with calipers. The template locates centers; it does not select drill size, tolerance or fastener clearance.

FAQ

What is PCD?
Pitch Circle Diameter - the diameter of the circle that passes through the center of every hole.