T-FLEX Parametric CAD. Fundamentals. 2D Design

«Bottom-Up» Design
and allow opening the file of the inserted fragment straightway for editing, after its creation has
been finished automatically.
If necessary, for example, for fast insertion of several fragments in a row, it is possible, by setting on the flag
“Auto Create” in the section “Options” of the command's properties window, to turn on the mode of
finishing fragment insertion automatically after specifying its fixing points. In this case, the fragment
insertion will be finished automatically right away after specifying all fragment fixing points or its fixing
vector.
Detailed description of all steps of inserting a fragment (selecting the fragment file, defining
external variable values and placement, attachment of the fragment to the assembly drawing) can
be found in the respective topics of this section.
If you need to insert another instance of one of already inserted fragments, you can conveniently use the
options and (described below, in the topic “Repetitive fragment insertion”).
Selecting Fragment File
For specifying the fragment file the standard window for file selection is used. It appears after using the
option:
Select File
Both your directory structure and the installed T-FLEX CAD libraries can be the source for this selection.
Switching between these two sources is carried out with the help of drop down list found at the upper left
corner of the file selection window.
When you are in the fragment insertion command, it is also possible to indicate the library element in the
service window “Model Menu”.
Selecting Fragment from Library
If a library element is used as a fragment, it can be assembled directly in the “Model Menu” window or in
the auxiliary library window (see the chapter “Libraries”), bypassing a direct call to the command “FR:
Create Fragment”. In this approach, you can use the context menu commands or the Drag&Drop
mechanism. To use the latter, select a fragment in the “Model Menu” or library window by pressing on
the fragment and drag it into the drawing area, while holding the left mouse button down. This will
automatically activate the command “FR: Create Fragment”. You can get the same result by rightclicking
over a fragment in the “Model Menu” or library window, and then selecting the context menu
item “Insert”.
Defining Fragment External Variables
If external variables exist in a drawing, you will be asked to define the values when inserting this drawing as
a fragment into assemblies. When attaching to the connector, necessary values can be specified
automatically.
Let's review defining fragment external variables in the example of a ball bearing drawing that we will be
inserting into a shaft drawing. An external variable “d” is created in the ball bearing drawing that drives its
inner diameter.
After choosing the name of the fragment-bearing, in the command's properties window the tab “Variables”
will appear which allows specifying the values for the fragment external variables. The standard list of
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