fillet

Add rounded fillets or chamfers to the edges of a solid. This is a PythonSCAD-specific function for edge treatment.

Syntax:

Python

fillet(obj, r, sel=None, fn=2, minang=None)
obj.fillet(r, sel=None, fn=2, minang=None)

Parameters:

Parameter	Type	Default	Description
obj	solid	—	The object to fillet
r	float	—	Fillet radius
sel	solid	None	Selection mask -- only edges intersecting this solid are filleted
fn	int	2	Number of segments. fn=2 creates a bevel/chamfer; higher values create smoother rounds
minang	float	None	Minimum angle for edge selection

Examples:

Python

from openscad import *

c = cube(10)

# Bevel all edges (fn=2 = chamfer)
c.fillet(1).show()

# Smooth fillet with more segments
c.fillet(2, fn=5).show()

# Fillet only front-facing edges using a selection mask
mask = cube([30, 1, 30], center=True)
c.fillet(3, mask, fn=20).show()