New free transitions generator engine. If you are looking for a program that can produce any pattern [transition] 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.
In general, a pattern 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. Then you just need to start LITIO2, 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 exists] and its development. Have a look at this video tutorial. |
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. |
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New free transitions generator engine. If you are looking for a program that can produce any pattern [transition] 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.
In general, a pattern 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. Then you just need to start LITIO2, 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 exists] and its development. Have a look at this video tutorial. 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. |