ToolHuts

Herramientas prácticas para trabajos de precisión

Generador de Plantilla de Círculo de Pernos

Ingrese el diámetro del círculo de pernos y la cantidad de agujeros para generar una plantilla imprimible a tamaño real con verificación de calibración.

Calcule el diseño, revise el diagrama y luego imprima el resultado para el taller o la obra.

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.