CAD out of the box™
Sheet metal add-ons for AutoCAD, GStarCAD, ZwCAD and BricsCAD

Create ANY sheet metal transition

in AutoCAD, GStarCAD, ZwCAD and BricsCAD with LITIO 2.0

Do you want to create your own customized transition?
Then you are at the right place!

Most sheet metal programs have extensive libraries for transitions, but you are still tied up to the available ones.

With LITIO 2.0 you can draw your own customized patterns.

A transition can be defined by its two ends.

For example, your transition may be defined by two polylines e.g., an irregular pentagon as the base [end 1] and an oblique ellipse as the top [end 2]. It is easy to generate both in AutoCAD or GStarCAD. Place them in your CAD's 3D space according to your needs.

Pick two valid entities,
e.g., polylines, to create your customized transition.

Start LITIO 2.0, choose this option [Free pattern from two 3D curves], click on both entities, define some few parameters [thickness and internal fillet radius], and you get the resulting 3D developable surface [if it 'mathematically' exists] and its development.

Get your developable sheet metal surface (transition)
and its flat development.

You can create transitions just by clicking any two valid entities (either 3D meshes created by Litio 2.0; or 2D and 3D polylines; or circles, located in AutoCAD/GStarCAD's 3D space.*

Thus, LITIO 2.0 gives you much more transitions than the ones available through its standard dialogue boxes.

* Some restrictions apply [see user manual].
Note, that the following entities are not accepted: arcs [convert arcs to polylines using the PEDIT command] nor ellipses [use ellipse pattern of LITIO 2.0], and resulting 3D objects cannot have concavities.
We purchased the LITIO2 software some years ago. And we were using this amazing software quite a bit and it is very useful. It comes in very handy for programming our 5 axis laser. Joe Abrahams
Vaughan - Canada

How to draw a customized sheet metal transition with LITIO2

You can draw customized sheet metal transitions just by picking two valid entities.
For this particular case, the transition is defined at its base with a polyline that is made by one third of a circle, two lines from the arc ends to the arc center, all with a fillet radius, and a circle at the top.

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