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Small meshes removed on upload. [message #57817] Sat, 01 December 2012 09:31 UTC Go to next message
avatar stop4stuff  is currently offline stop4stuff
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Registered: June 2010
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I've been making some model train parts, and using NetFabb Cloud Service to boolean join all of the seperate meshes into one single mesh. Unfortunately NetFabb Cloud Service seem to be broken this morning Sad

I uploaded the model to Shapeways anyway and to my surprise a small cylinder (representing the end of a bolt) was removed from my uploaded model. This issue has been raised before, but obviously still remains.

index.php?t=getfile&id=23629&private=0

For me this is not such a big thing as I know what I need to do to before uploading - it just a pain and will take me longer to complete the model Sad

For others, this could be the difference between a happy Shapeways customer and an angry ex-Shapeways customer.

Paul



Re: Small meshes removed on upload. [message #57858 is a reply to message #57817 ] Sun, 02 December 2012 10:07 UTC Go to previous messageGo to next message
avatar Jettuh  is currently offline Jettuh
Messages: 476
Registered: January 2009
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Hey Paul,

this is probably because the missing part is sharing the same face (overlapping faces).
could you try to extrude the missing some part a bit in the other part?

this way it will get unified correctly and it should show up

mitch
Re: Small meshes removed on upload. [message #57861 is a reply to message #57858 ] Sun, 02 December 2012 10:38 UTC Go to previous messageGo to next message
avatar stop4stuff  is currently offline stop4stuff
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Nope, the seperate watertight and manifold shells overlap by 0.15mm and share no common faces.
Here's a screenshot,

index.php?t=getfile&id=23698&private=0

Here's another example of disapearing small yet acceptable shells, both are the same model, the first was sent through NetFabb Cloud Service before upload to Shapeways, the 2nd uploaded straight to Shapeways. http://shpws.me/lo4d and http://shpws.me/mMtn - I've set the moodels to be downloadable, and you can see from the 2nd one that parts are removed

Paul

  • Attachment: parts.JPG
    (Size: 241.62KB, Downloaded 109 time(s))

Re: Small meshes removed on upload. [message #57898 is a reply to message #57861 ] Mon, 03 December 2012 09:20 UTC Go to previous messageGo to next message
avatar MitchellJetten  is currently offline MitchellJetten
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Hey Paul,

I have forwarded this topic to our 3D development team and asked them to look into this for you!

Mitch


Kind regards,

Mitchell Jetten
Customer Service Coordinator
Shapeways
Re: Small meshes removed on upload. [message #57902 is a reply to message #57898 ] Mon, 03 December 2012 11:26 UTC Go to previous messageGo to next message
avatar Dragoman  is currently offline Dragoman
Messages: 173
Registered: August 2011
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It seems this issue already cropped up earlier this year:

See this thread:
http://www.shapeways.com/forum/index.php?t=msg&goto=5116 2

It seems the upload softwre does indeed remove very small pieces, as a filter against 3d-modelling artifacts that may crop up with some programs.

Greetings
Dragoman
Re: Small meshes removed on upload. [message #57946 is a reply to message #57902 ] Tue, 04 December 2012 08:24 UTC Go to previous messageGo to next message
avatar MitchellJetten  is currently offline MitchellJetten
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I work here
Hey Paul,

Just received note from our development team!
"Netfabb removes ghost shells that are too small to be printed even if the shells intersect larger printable shells. What netfabb should do is merge intersecting shells before removing any left over ghost shell. "

We are working on a fix which hopefully fix this issue in the near future.
However there are some issues with the newest software so we want to make sure it's a stable version before updating.

If you would like, you can email me (mitchell [at] shapeways) and I can send you the merged shells file which should upload fine Smile

mitch


Kind regards,

Mitchell Jetten
Customer Service Coordinator
Shapeways
Re: Small meshes removed on upload. [message #58092 is a reply to message #57946 ] Thu, 06 December 2012 09:02 UTC Go to previous message
avatar stop4stuff  is currently offline stop4stuff
Messages: 3111
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Hi Mitchell,

I figured that was the case, and I fixed the model anyway.

Thanks,
Paul




 
   
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