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Manual BMG Layer (DIN4003)

Drawings can be enhanced with BMG layers according to DIN 4003. When exporting 2D DXF/DWG these layers transfer important information for Tooling and BIM, among others.

Precondition: CNS classification with respective data

  1. In PARTdesigner, in the docking window 3D History, click on the context menu command New 2D drawing....

    -> The dialog box 2D drawing is opened.

    Dialog box "New 2D drawing"

    Dialog box "New 2D drawing"

  2. Under View, select the option User.

    Under Name, for example enter DIN 4000 / BMG Layer.

    Under Layer group, select the option BMG.

    Confirm with OK.

    -> The Sketcher is opened. (The button group Text is visible for drawings.)

  3. In the Sketcher, create your drawing as usual.

    [Note] Note

    A 2db file can also be saved and loaded as parametric 2D sketch.

  4. Now classify desired elements.


    1. Initial situation: A line not yet classified shall be classified.

    2. Select the desired line.

      -> Now the line is displayed showing the default highlighting color (purple).

    3. Click on the icon Classify element .

      -> The respective dialog box for specification of Group and Classification is opened. Select desired options (here Tool name and LAYER_1.

      Once selecting a layer, the result to be expected is immediately displayed (line color, type, width).

    4. Confirm your selection by clicking OK.

      -> In the Sketch history, the relation between shape element and classification is represented by a red arrow.

      Example: Relation between shape element and classification

      Example: Relation between shape element and classification

    [Note] Note

    If the needed classification already exists, better add the selected element to the existing instead of creating a new classification step!

    For this in the appropriate classification, select the category Elements and there, click on the context menu command Add selection.

    [Note] Note

    Depending on layer, lines are displayed differently in color, type (solid, dashed, dot-line) and width (thin, normal, thick) (both in PARTdesigner and later in PARTdataManager in the 2D derivation). Detailed information on the individual layers can be found in the specification DIN SPEC 69874-2.

  5. With Hide classified elements , you can hide or show all layers of a group or single layer and check in this way, if everything has been set correctly.

    Click on the button.

    -> The respective dialog area is opened.

    All layers visible

    All layers visible

    All layers hidden except for "NC-Geometries"

    All layers hidden except for "NC-Geometries"

    Activate/deactivate the checkbox at desired groups or layers.

  6. In the Sketcher, finally click Accept changes.

    -> The additional drawing with the layer information is displayed in the 3D History.

  7. Under PARTproject -> Edit project -> tabbed page 2D derivation, determine that the 2D sketch is displayed.

    Tabbed page 2D derivation

    Tabbed page 2D derivation

    • Under View, enter the display name.

    • Add 2D model. For this you have two options:

      • Select From 3db file, if you created the drawing in the sketcher and want to use this internally saved drawing.

      • Select a 2db file, which is stored in project directory.

    • In the third column, select option Add.

  8. Update the index.

  9. Open PARTdataManager.

    -> The additional drawing is displayed under 2D derivation.

  10. When exporting 2D DXF/DWG the BMG layers are also exported.