Can't 'shell' - any idea why?

hannesgrebin · October 28, 2016, 2:36pm

This is strange… Is this a bug? Very simple solid

pascal · October 28, 2016, 3:26pm

Hi Hannes - the thing is open, even though it looks closed, and somehow hard to close up properly. Still poking…

I Exploded and untrimmed everything, extended a few surfaces to intersect and then CreateSolid to make a whole new polysurface from bits. It is closed and shells correctly as far as I can see.

Shell Bug_PG.3dm (239.4 KB)

-Pascal

hannesgrebin · October 28, 2016, 4:11pm

Thanks! Is there any idea of implementing a command like “Check Polysurface” in V6 to check open edges and stuff?

pascal · October 28, 2016, 4:13pm

ShowEdges & Check & What …

-Pascal

schultzeworks · October 28, 2016, 4:19pm

The quick-trick I use to see if a polysurface is closed is ‘Analyze → Mass properties → Volume.’

You’ll get a number if its closed everywhere.
You’ll get an error is its open anywhere.
Then, run ‘Analyze → Edge tools → Show edges’ to find the open problems.

hannesgrebin · October 28, 2016, 4:55pm

thanks a lot Dave! Will do so!

Cyver · October 29, 2016, 12:52pm

Properties panel show this information

hannesgrebin · November 2, 2016, 8:30am

@Cyver thanks a lot, this is a hidden gem!

schultzeworks · November 21, 2016, 8:23pm

@cyver [quote=“Cyver, post:8, topic:38183”]
Properties panel show this information
[/quote]

Awesome tip! I have no idea when they snuck this handy feature into the app. Being self-taught, it happens a lot! Thanks again.

pascal · November 21, 2016, 10:11pm

SelClosedPolysrf is another option for checking, if that has not been mentioned yet - also hey, SelOpenPolysrf !

-Pascal