There are two overhauled commands in AutoCAD 2020 that are used pretty often. One of the is the PURGE command. The other is INSERT, which I will mention in a future post.
A customer had trouble getting the rings and other elements of hangers to show up properly when they ran 3D Hangers. I am still not sure how the problem occurred, but the gist is the hanger rings were somehow defined as other objects. My co-worker, Bill McKenna, my suggested that might be the problem, so I used the new Purge command to track them down. Here is how I figured out which blocks were mis-defined and fixed them.
In the drawing, I typed in PURGE. It takes a little while to load up, because it does a great deal of drawing scanning
Note the selection tree that shows up. Kind cool.
I picked Find Non-Purgeable Items to see what Blocks might be candidates
I then picked the + next to Blocks.
Many of the first few defined blocks really stand out. Why? Because 60 is the part number category for Hangers, making these likely candidates.
Picking the first one shows what is wrong right away. The hanger ring (10 being 1 inch) is somehow defined as a ski-pole. The solution is to erase all seven '60' blocks (one for each size) and purge them out. Except, they cannot be purged because they are inserted in the drawing.
So, I turned all the layers on using the AO (all on) command. I then type in DL for Delete Layer and selected one of the ski-poles inserted where the 3D hanger ring should be. This deleted over 4000 items from the HCAD-3d_Hangers layer.
Now I could to a PURGE again and be able to select the mis-defined blocks and purge them.
i checked each of the seven 'bad' blocks and picked Purge Checked Items. I was now able to create the 3D Hangers properly.
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