T-FLEX Parametric CAD. Fundamentals. 2D Design

«Bottom-Up» Design
picture, other elements of the drawing cannot be fixed to it. Also, it is not possible to modify variables of
such fragment from the variables editor of the assembly drawing (when the connection between the
assembly variable and the fragment variable exists). Modifying variables is possible only upon editing such
fragment on condition that the source file exists on the hard disk at the indicated reference.
Use Status of. As any T-FLEX drawing, the fragment has its own drawing settings defined in the commands
“ST: Set Model Status” and “SH: Set Levels”. Those include the line thickness, the font size, levels,
etc. One of the two status settings can be selected for the fragment being inserted into the current drawing:
Fragment. In this case, the fragment will be inserted with the settings defined in the fragment drawing.
Current Document. The inserted fragment will adjust to the settings of the current document. This choice
is used when the assembly drawing is required to maintain a uniform style. Besides, by changing the
ranges of visibility levels you can “turn on” or “turn off” certain portions of the fragment drawing when
it is used in an assembly. For instance, one can remove “extra” drawings or dimension symbols.
Include in Bill of Materials. This parameter manages incorporation of fragment data into the bill of
materials of the current drawing. It can take the following values:
• Don’t Include - the fragment is not entered in the BOM table.
• Without Embedded Elements - the fragment is entered in the BOM table. If the fragment is an
assembly itself, then only the fragment proprietary data is entered into the BOM. The information
about the nested elements (lower-level fragments) is not included.
• With Embedded Elements - the fragment is entered into the BOM together with the nested elements.
• Embedded Elements Only - only the nested elements are entered into the BOM.
• With BOM - the BOM gets the data about the fragment, together with the BOM data of the fragment
drawing document. If the fragment document contains two BOMs, the data is used from the first
created BOM. To use the data from a specific BOM, you would have to define the respective
parameter after inserting the fragment (see below).
• BOM Only - the BOM gets only the data from the BOM of the fragment drawing.
• With Parametric BOM – the assembly BOM gets both the fragment BOM data and the fragment data
intended for a BOM. In this case, the system additionally tracks possible parametric modifications of
the nested BOM. For example, if modifications to the assembly variables altered the contents of the
subassembly, this would be reflected in both the subassembly BOM and the assembly one.
• Parametric BOM Only – the assembly BOM gets only the contents of the fragment BOM, with the
provision for updating the fragment BOM upon parametric modifications of the assembly.
Fragment BOM regeneration takes additional time when the regenerating the model. Due to this
fact, we do not recommend using “parametric” ways of including the nested BOMs in the cases
when changes to the fragment variables do not affect its BOMs.
The fragment parameters dialog box can be invoked after inserting the fragment into the assembly drawing.
You can do this if you did not specify the relation with the fragment BOM at the time of insertion, or if you
need to selectively establish a relation with a specific BOM of the assembly drawing.
In this case, the name of the just described parameter will
appear as “Include in new BOMs” and, therefore, this
parameter will take effect only on the newly created BOMs
in the current document.
595