Knowledge Base AutoCAD
Drawing Networks
Learn how to draw pipe and duct networks, connect components, generate schemes, and create slots and openings.
Draw pipes and ducts
Learn how to construct pipe and duct networks with the LINEAR Solutions.
Drawing pipes and ducts in 3D - Model planning
Learn how to construct pipe and duct networks in the planning type 3D - Model planning.
Details on Configuring and Inserting 3D Air Ducts
Information on the Pipes command group in the 3D - Model Planning planning type of the Ventilation discipline.
Details on Specify starting point
Information about the dialog Specify starting point in 3D air duct construction.

New Features
Learn about new features in LINEAR software.
System Requirements
Learn more about the system requirements for using the LINEAR solutions.
Supported Norms and Standards
Learn which norms and standards support the LINEAR Solutions modules.
LINEAR Installation and Administration
Learn how to install, your LINEAR software, license and keep it up to date.
Getting Started
Get basic information about the structure, function and interaction of the LINEAR Solutions programs in AutoCAD and LINEAR Building.
Preparing and Editing Buildings and Architecture
Learn how to prepare drawings provided by an architect to create an architecture for building analysis.
Analyzing Buildings
Get information about the requirements analysis of a building. The demand analysis includes the calculation of the heat load, the cooling load and the ventilation concept.
Dimensioning Components
Learn how radiators, convectors, panel heating/cooling systems and concrete core activation systems and components of ventilation systems are designed based on the requirement analysis in LINEAR Building.
Inserting Components
Learn how to transfer radiators or chilled beams to a LINEAR Building connected CAD platform and insert symbols and components from the libraries into CAD.
Drawing Networks
Learn how to draw pipe and duct networks, connect components, generate schemes, and create slots and openings.
- Draw pipes and ducts
  Learn how to construct pipe and duct networks with the LINEAR Solutions.
  - Drawing pipes and ducts in 2D/3D floor plan and 2D scheme
    Learn how to construct pipe and duct networks in the planning types 2D - floor plan planning and 3D - floor plan planning as well as 2D - scheme planning.
  - Drawing pipes and ducts in 3D - Model planning
    Learn how to construct pipe and duct networks in the planning type 3D - Model planning.
    - Details on the design of 3D pipelines (3D - model planning)
      Information about the Pipes command group on the Create tab in the Planning type 3D - Model planning.
    - Details on Configuring and Inserting 3D Air Ducts
      Information on the Pipes command group in the 3D - Model Planning planning type of the Ventilation discipline.
      - Details on Specify starting point
        Information about the dialog Specify starting point in 3D air duct construction.
      - Drawing a 3D Air Duct
        Shows step-by-step how to draw a 3D air duct.
      - Continuing a Pipe or Air Duct
        Shows step-by-step how to continue drawing an existing pipe or air duct.
      - Connecting 3D Pipes/3D Ducts Automatically
        Shows step-by-step how to automatically connect pipes, ducts and also components with pipes, ducts or other components using the Connect automatically < command.
      - Inserting Components Into Pipe/Duct During Drawing
        Shows step-by-step how to insert components into the course of a pipe or duct during the drawing process and then continue drawing directly on the component.
      - Turning in Front of/Behind/On a Wall with a Pipe or Duct
        Shows step-by-step how to make a turn in front of, behind or on a wall or component when drawing pipes or ducts.
      - Creating a Height Jump from the Storey Table
        Shows step-by-step how to perform a height jump with a pipe or air duct.
      - Details on the Context Menu for Drawing Air Ducts
        Information on the context menu for drawing 3D air ducts.
      - Connecting Components (Ventilation/Air Ducts)
        Shows step-by-step how to connect components to air ducts in an air duct network, e.g. air diffusers.
      - Moving Components
        Shows step-by-step how to move a connected or unconnected component to a different position using the Move component command in the context menu of the component grip.
      - Details on 3D Air Duct Flange Profile
        Information on the Flange Profile dialog when designing air ducts in the planning type 3D - Model planning.
      - Details on Material and Insulation
        Information on the Material and insulation dialog of the Connectors... function on the command group Pipes.
      - Details on Dimensioning (Dimensioning support)
        Information about the Dimensioning dialog.
      - Configuring and Placing a Central Ventilation Unit
        Shows step-by-step how to configure a central ventilation unit and place it in your drawing.
      - Details on Device Configuration
        Information on Device Configuration of the function Draw central device in the section 3D air duct construction
      - Details on Component (Device Configuration - Draw Central Device)
        Information about the Component dialog in the Device configuration of the Draw central device < command.
      - Details on Change of direction
        Information on the Change direction dialog when designing air ducts in the planning type 3D - Model planning.
      - Details on Component
        Information about the Component dialog in the Draw command for 3D air ducts in the planning type 3D - Model Planning.
      - Details on Socket
        Information on the dialog Socket of the command Put socket onto duct or pipe for the planning type 3D - Model planning.
      - Details on Ducts
        Information about the component dialogs when drawing air ducts in planning type 3D - Model - Planning - Air Duct Construction.
      - Details on flexible ducts
        Information about the component dialogs when drawing air ducts.
      - Rotating Components
        Shows step-by-step how to rotate a component that has already been installed using the Rotate component command.
      - Moving Components
        Shows step-by-step how to move a component to another position using the Move component < command.
    - About Electric Cable Trays
      Explains the concept of electrical cable tray construction in the planning type 3D - Model planning of the discipline Electric.
  - Drawing pipes and ducts in 2D - Detailed planning
    Learn how to construct pipe and duct networks in the planning type 2D - Detailed planning.
- Connecting components with pipes and ducts
  Learn how to connect components in your drawing with pipes and ducts.
- Constructing Panel Heating/Cooling
  Learn how to prepare the construction of a panel heating / cooling system, how to draw in a system and how to edit it using the commands of the discipline panel heating / cooling.
- Construct Roof Drainage
  Explains the concept of functions and commands to construct a roof drainage drainage system in the respective discipline.
- Drawing networks with Scheme generators
  Learn how to use the Scheme generator to build, modify, and draw in schemes with discipline-specific components for the disciplines of heating, potable water, wastewater, and gas.
- Tools and auxiliary function for drawing pipes and duct networks
  Explains the concept of tools and help functions for drawing pipe and duct networks on the Tools tab and in the footer of the LINEAR Control Board.
- Create Slots, Openings and Core Drill Holes
  Learn how to create slots, openings, and core drillings in your drawing in the Slot and opening planning discipline, for example, to guide pipes and ducts through walls and ceilings.
- Insert Fixings
  Information on the command group Components for the discipline Fixing planning
Calculating Networks
Learn how to calculate pipe and duct networks.
Automatic labeling and dimension
Learn how to label components and sections in your drawing and how to dimension your drawing.
Output
Get basic information on output to the LINEAR Solutions for AutoCAD. for output to LINEAR Building and print mask editor.

Details on Specify starting point

Information about the dialog Specify starting point in 3D air duct construction.

Allows you to set the starting point for drawing ducts, e.g. axis duct 500 mm from the right side facing in the direction of construction.

You are here:

Project tab ➤ Discipline ➤ 3D - Model planning ➤ Create tab ➤ Command group Pipes

Select a radio button and, if necessary, a dimension in one of the two input fields to define the reference for the starting point for drawing ducts.

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Details on Specify starting point