Today we will show that there are several ways to make sheet metal bend lines visible (or not) in SOLIDWORKS drawings.
where to find bendlines
First, we need to know where the bend lines are stored/created/saved. In parts created with sheet metal tools, bend lines are stored in flat pattern features. Show/Hide and Suppress/Unsuppress to control how and when these sketches are displayed. By default, they are always in the "collapsed" configuration, unsuppressed and hidden, and in the "flat" configuration, unsuppressed and set to show.
On the drawing side, by default when a flat pattern view is inserted from the View palette or the Model View command, it automatically generates a derived configuration in the part file and puts it in the flat view with bend annotations.
If your view isn't displaying correctly, check the following:
No bend lines, but bend notes are shown
First, in the Heads-Up View toolbar, make sure the Hide/Show Items tool (eyeball) is not enabled. When enabled, this will hide all items.
If you still can't see them, your sketch is most likely not set to "View" prior to SOLIDWORKS 2022 . Go to the View drop-down menu or the View Header menu and choose Sketch.
After SOLIDWORKS 2022, bend lines are separated from sketches, so you can hide sketches and still keep bend lines visible. Go to the View drop-down menu or the View Header menu and choose Curved Line.
Does not display bend lines or bend notes
Most likely the curved line sketch for this view is not set to "Show". Go to the Feature Manager design tree, expand the view, and drill down to the bend line sketch. Right click on it and set it to "Show".
If a bend line is hidden in a flat pattern drawing view and a bend note exists, the bend note is also deleted.
To show missing bend notes, right-click the view, select Properties, and set the Bend Notes check box to Show.
NOTE: If there are no bend annotations but there are bend lines when the flat pattern view is created, the Document property in Drawing is most likely unchecked.
The last problem is that there are too many lines displayed in the flat pattern. This may be the result of editing the flat pattern feature in the part file and unchecking the Merge Faces check box. By unchecking this option, you will now see the start/stop for each face. Rechecking this will remove those lines.
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