Lofted Bends in SolidWorks are a tool that has been in the software for years and a tool that I think a lot of time gets over looked for the abilities of what it can do for a user.
When we look at the Property Manager for Lofted Bends we are presented with quite a few options. Typically, when I want to know more about the feature that I am working on and what it can do for me I hit the? mark in the upper right. In the case of Lofted Bends, it takes me to a general help page for Lofted Bends telling us the basics of how to build a part with Lofted Bends.
Faceting Options
You can also control the individual bend regions by selecting the pink spheres in the preview.
The last option is for Refer to endpoint to specify whether the created bends refer to a sharp corner in the profile or whether the sharp corner is replaced with adjacent bends to form an approximated arc in the corner.
Refer to endpoint = Checked Refer to endpoint = Cleared
The rest of the options in the property manager are the same as any other Sheet Metal part.
The resulting Flat Pattern looks like what you see below (Bend Lines Sketch selected to show detail).
Formed Lofted Bends
Formed Lofted Bends have a rolled or drawn look to the bend regions instead of being separated by bends and flats like in Bent Lofted Bends.
To create a Formed Lofted Bends, the profiles must meet an additional requirement:
Profile cannot include sharp corners.
You can see with the Property Manager and the resulting preview that we have fewer options and a Message about the difference between a Bent and Formed Lofted Bend.
The resulting Flat Pattern looks like what you see below, note there are no Bend Lines like in the Bent Lofted Bends example.
