Problem with duplicate sketch drawings

[jculleton3]

I have done a lot of work on my design deleting extrudes or copy and pasting sketches to another design.

After I kept having problems with Fusion chugging very slowly and occasionally crashing I noticed that some of my lines (sometimes a complete sketch object) would have double or triple lines either one on top of the other or slightly offset.

I though it could be just me accidentally doing a paste when moving the item to a different design but it happened again.

I deleted all the extra lines and saved the drawing.

Opened it back up and there were duplicates of some sketch lines and not others right on top of each other. 

I just got in the habit before I extrude to click a line and delete it. If the line disappears I do a CTRL-Z and move to the next line. If the line stays I keep repeating until it disappears then I know I have gotten all the duplicates.

Any body else ever have this issue?

Thanks JC

[HughesTooling · Accepted solution]

One thing to be aware of is if you sketch on a face all the edges are autoprojected also autoproject edges on reference will create copies as well. You might want to turn these off in preferences.

[jeff_strater · Accepted solution]

Another thing that can cause duplicate sketch geometry is the way that Paste works when copy/pasting sketch geometry.  There are actually two commands that happen when you paste copied sketch geometry:  The Paste, then followed by a Move command (which allows you to re-position the pasted geometry).  If you cancel the command, you are only canceling the Move, not the Paste.  This can leave sketch geometry right on top of the original, and it can be very difficult to even tell that it is there.  A trick that I use is to use Select Other to see what is under the cursor, to find these duplicate sketch items.

Here is a screencast (with audio) that demonstrates:

This is not an ideal workflow.  The cancel should cancel the entire paste, not just the move.  We hope to fix it some day.  But that hasn't happened yet.

Just something to be aware of.

Jeff

[n0f8r1]

Thank you so much - was tearing my hair out on this one. That is one of THE most annoying-frustrating-time-wasting deliberate feature design choices I've ever come across