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Finding extra Shells

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Finding extra Shells [message #48781] Tue, 22 May 2012 23:12 UTC Go to next message
avatar tebee  is currently offline tebee
Messages: 478
Registered: December 2010
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Senior Member
I have a Model which Shapeways seems to be having problems with.

I got the message -

"Unfortunately, we were not able to process and thus print your product. Sadly we were not able to determine what exactly is wrong with it in an automated way.

We have already tried correcting the issue using our Mesh Medic. "

Now looking at it in Netfabb it appears to have 9 shells when it should only have one. Running the repair script appears to fix it and reduces it to 1 shell, but gives me no indication of where the extra shells where so I can go back to the original design and try any work out what is generating them.

Any ideas how I can find them ? Stl file attached.

  • Attachment: bf30.stl
    (Size: 3.91MB, Downloaded 77 time(s))

Re: Finding extra Shells [message #48784 is a reply to message #48781 ] Wed, 23 May 2012 00:25 UTC Go to previous messageGo to next message
avatar stannum is currently online stannum
Messages: 1278
Registered: May 2009
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Shapie Expert
In Blender, load the STL, in edit mode (press Tab) remove doubles (W key menu), select linked (aim to the big block and press L), hide selection (H key): you have 8 small tubes floating free and inside the big block, near the bolts (they are coaxial). Maybe you created them to be sure the bolts are solidly linked to the the big block?
Re: Finding extra Shells [message #48785 is a reply to message #48784 ] Wed, 23 May 2012 00:36 UTC Go to previous message
avatar stonysmith  is currently offline stonysmith
Messages: 2679
Registered: August 2008
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Shapie Expert
Another way to see it.. Open the model in Netfabb. Select "Repair'
then right click the main shell (turning it green) and then hit Delete.

You'll see instantly where the 8 other shells are.

In Netfabb, your other option is to select the main shell, and then right click it and select "Extract selected triangles as part".
Then use the Export option to save the new part, and just ignore the original shell(s).

Patience, Persistance, Politeness - the 3Ps will help us get us to Perfect Printed Products

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