2.10.3 The “Cut object with polygon” tool in Tekla Structures
Enabling the “Cut object with polygon” tool creates a plate
analog added material object. In other words, it is possible to abstract
a part with the shape of a plate of any object.
Hereinafter let’s refer to this tool as an added material
plate, for further convenience based on the similarity of its properties
with the plate's object.
Tekla Structures v21.1
Tekla Structures v2021
Create a beam of 500 mm length.
Tekla Structures v21.1
Tekla Structures v2021
Now, let’s create an added material plate by using the following
algorithm for applying the “Cut object with polygon” tool:
Make sure all operations are canceled or press the Esc key.
Enable the Ctrl +P key combination to go to the view plane.
Make sure that the Z-axis is perpendicular to the eye gaze direction.
Enable the “Cut object with polygon” tool.
Select the initial object (the beam created).
Switch the object's display mode by using the Ctrl+2 key combination
Indicate in sequential order the points of the added material plate.
Pressing the “Space” key or the mouse wheel button finalizes
creating the added material plate.
To deactivate the “Cut object with polygon” tool, press the
Esc key.
Tekla Structures v21.1
Tekla Structures v2021
Let’s examine the new object by opening its "Properties"
Tekla Structures v21.1
Tekla Structures v2021
The first thing to highlight is that the "Properties" window
is similar to the "Plate Properties" window, where the "Material"
field value is set up as ANTIMATERIAL. But keep in mind that the “Cut
object with polygon” is a separate tool, thus modifying a plate’s
material to "Antimaterial" does not bring the same result.
The added material plate object can be moved. Let’s move the added
Tekla Structures v21.1
Tekla Structures v2021
Similar to the standard plate object, the added material plate can be
Proceed as shown below.
Tekla Structures v21.1
Tekla Structures v2021
The added material plate's profile value is editable as well as its
Tekla Structures v21.1
Tekla Structures v2021
Click on the added material plate and select one of its points.
In the points properties dialog window, you can set up the chamfer type
Tekla Structures v21.1
Tekla Structures v2021
To create an added material plate at a different plane, first of all,
assure all the default views of the part by using the algorithm: make a
right-click on the object, and in the drop-down menu, select the tabs "Create
View/ Default view of Part". Do not forget to collapse the current
view to see the other view options that appeared.
Tekla Structures v21.1
Tekla Structures v2021
Set up the work plane parallel to the view plane at the "Side view"
window opened. Make sure that the Z-axis direction is perpendicular to
the eye gaze direction.
Tekla Structures v21.1
Tekla Structures v2021
Enable the “Cut object with polygon” tool.
Tekla Structures v21.1
Tekla Structures v2021
Compare your results to the below. All the cut parts have been created
Tekla Structures v21.1
Tekla Structures v2021
When tailoring complex cuts, the initial object might get transparent,
Tekla Structures v21.1
Tekla Structures v2021
To prevent such errors, shaping out the object shall be done by paying
attention to the fine duty cut not to be deleted. The errors are conditioned
by partially deleting the added material plate at the object's bound
( see marked in red).
Tekla Structures v21.1
Tekla Structures v2021
Logically it is reasonable to completely delete a part of an object without
leaving the fine duty cut, but software accepts the latter as a coordinate,
thus leaving the fine duty cut is quite substantial. These types of errors
are particularly prevalent in complex geometry cases, such as twisted beams
laid out at a perplex angle to other objects. To avoid committing
such errors, we would advise shaping out the cuts in a way none of the
added material parts to be coincident with the bounds of the object. Let’s
modify the added material bodies created, taking into account the above.
Refer to the below:
Tekla Structures v21.1
Tekla Structures v2021
Now the added material bounds are laying out of the bounds of the object.
When modeling complex projects, such over cautiousness is a key tool to
avoid operational mistakes.
That is why the algorithm for creating the side cut was based on indicating
Tekla Structures v21.1
Tekla Structures v2021
When modeling standard joints for simple beams, you can skip out on using