Creating Outer Shell loses solids.

DrSpielgood

I have tried every which way to get this to work, but every time I select every solid on my design and click Outer Shell, SketchUp has lost some of my solids in the process.

At first I thought it was stray guides causing it (because it popped up with an error stating that not everything I selected was a solid), so I deleted them. Same thing. I turned off hardware acceleration. I saved the result of Outer Shell to a new file, then reopened it to see if it wasn't just a display glitch, and it wasn't, these solids are really gone.

I'm posting links to my files on Google Drive, to see if this file does the same thing for anyone else:

(drive.google.com)

pcmoor

there is a slight over extension of the lug, sketchup has problems with small bits, in this case extrude the lug back a bit, otherwise for small details scaleup, preform the operation then scale back down

wawmsey7

I'm having the same problem here... are there no better solutions to this than scaling up and then back down again (not ideal)? It doesn't really make sense, it's just a scale right? maybe I should just pretend that metres are mm and model like that!

TIG

It makes sense, in that SketchUp has a built in tolerance if 1/1000"
Which you might expect to be quite sufficient for its original purpose of modeling buildings - and at the extreme modeling groups of building, or the parts of parts of buildings...
However, as users press its abilities to the limits they meet those limits.
If you model very large [cities, affected by upper tolerance limits we'll ignore here for sanity's sake!] or very small [machine parts etc] it's quite easy to get to the tiny geometry limit.
When you do intersections, followme, solid-tools or similar operations, then you might end up with potentail tiny edges <1/1000"
SketchUp assumes that, because those are "within tolerance", the two vertex-points it's been given are coincident, so then no edge is made.
Consequently any facet that relied on that tiny edge also fails to appear !

If you scale up your model [or when knowingly modeling the very-small, you simply work in 'm' pretending input dimensions are 'mm' !] the chances of these tiny geometry failures are greatly obviated...
You can always scale down afterwards or export at a reduced size...

Luckily, tiny geometry can exist [e.g. after it's scaled down]... BUT it can NOT be created by SketchUp from scratch

slbaumgartner

See this topic for some discussion of what can go wrong at the opposite extreme of values larger than SketchUp was designed to handle:

http://sketchucation.com/forums/viewtopic.php?f=79%26amp;t=60229