Model's lowest parts close up when exported to stl


#1

Hi!
I am making a rather flat model, with a higher border. When transformed to stl., the lowest parts close up, no matter what I’ve fixed or change so far. I am loosing my nerves, but can’t change design as it is in form of some logo.
It looks like this:

Can someone please help me?


#2

Are you able to post the original SketchUp model for testing?


#3

Yes of course:)
NOGA.skp (1.5 MB)


#4

I’m unable to reproduce this. What export and import units are you using?
I notice however that your model have very small edges around 1mm or less. This is very close the precision limit in SketchUp and might cause unexpected results.


#5

I’m using milimeters.
I’ve also tried with an enlarged model (like 5 times bigger), but problems were the same.


#6

The SKP is going to cause issues.
It has many tiny bits of geometry which are probably beyond SketchUp’s tolerance limits.
It has some reversed faces - especially around the ‘text’.
I grouped it and Entity Info does not report it as ‘solid’ !
Also thomthom’s Solid-Inspector shows hundreds of issues.
These will prevent it from exporting successfully - the STL expects a manifold solid.
You need to use Xray-mode and Section-Planes to access parts of the model and remove internal partitions and generally tidy it up …


#7

O dear :confused: So I have many things to do now.
Well, thank you very much all for your advices and help!