Is there anyway to duplicate a sketch in an assembly? I have a complicated sketch in an assembly. I need to make a new copy of the sketch in that assembly for making second option sketch.
Though I have not done this before, I did notice the Copy icon is disabled when a sketch is selected in the assembly Pathfinder.
So the alternative would be to open the sketch and manually copy it using the Copy command and Paste it in a new sketch.
You can even use Ctrl+A to pick all entities at once.
Hope I understood your question correctly.
I found in a quick test that the constraints are copied as well.
But there does not seem to be a way to retain connection to underlying entities when copied, which you may need to re-establish manually again.
and what's about having a part containing that sketch and placing this part as often as You need it?
This would be a single part with a single sketch but could be accessed as many times as neede at several positions and places.
There are some ways... Make a block from it and place once again. Or @hawcad has a good idea too.
Or you can use Tear-off sketch command in assy.
Here is a video to my last mention: