Arch PipeConnector

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Arrow-left.svg Previous: Arch Pipe.svg Pipe

Arch PipeConnector.svg Arch PipeConnector

Menu location
Arch → Pipe Tools → Pipe Connector
Default shortcut
Introduced in version
See also
Arch Pipe, Arch Equipment


This tool allows to create corner or tee connection between two or three selected Arch Pipes.

How to use

  1. Select 2 or 3 Arch Pipes. If you are selecting 3 pipes, two of them must be exactly aligned.
  2. Press the Arch PipeConnector.svg Arch PipeConnector button, or press P then C keys.


  • DATARadius: The curvature radius of this connector

Typical workflow

See the information on Arch Pipe for the workflow on using pipes and creating connectors.


See also: Arch API and FreeCAD Scripting Basics.

The Pipe Connector tool can be used in macros and from the Python console by using the following function:

Connector = makePipeConnector(pipes, radius=0, name="Connector")
  • Creates a Connector object from the given pipes, which is a list of Arch Pipes, and optionally a radius of curvature.
    • The base objects (Draft Wires) of the Arch Pipes should share an endpoint so they create a proper, smooth connector.


import FreeCAD, Draft, Arch

p1 = FreeCAD.Vector(-1000, 0, 0)
p2 = FreeCAD.Vector(-2000, 0, 0)
p3 = FreeCAD.Vector(-2000, 0, 0)
p4 = FreeCAD.Vector(-2000, -1000, 0)
p5 = FreeCAD.Vector(-2000, -1000, 0)
p6 = FreeCAD.Vector(-4000, -1000, 0)
Line1 = Draft.makeWire([p1, p2])
Line2 = Draft.makeWire([p3, p4])
Line3 = Draft.makeWire([p5, p6])

Pipe1 = Arch.makePipe(Line1, 150)
Pipe2 = Arch.makePipe(Line2, 150)
Pipe3 = Arch.makePipe(Line3, 150)

Conn = Arch.makePipeConnector([Pipe1, Pipe2])
Conn2 = Arch.makePipeConnector([Pipe2, Pipe3])

Line4 = Draft.move(Line1, FreeCAD.Vector(-500, 1000, 0), copy=True)
Line5 = Draft.move(Line2, FreeCAD.Vector(-500, 1000, 0), copy=True)
Pipe4 = Arch.makePipe(Line4, 100)
Pipe5 = Arch.makePipe(Line5, 100)

Conn3 = Arch.makePipeConnector([Pipe4, Pipe5], radius=400)
Arrow-left.svg Previous: Arch Pipe.svg Pipe