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Parts seem to be disappearing when exporting [message #32711] Mon, 15 August 2011 11:47 UTC Go to next message
avatar TreadshotA1  is currently offline TreadshotA1
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Registered: August 2009
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Guess i just plain ran out of tricks this time around. I made a model in EasyToy, and then exported it as a (.obj) to Sketchup to finish some things. But now, when i export the model to Shapeways, part of it just disappears. I have no idea why this is happening, as the parts that disappear seem to be randomly dotted around the model.

This is the model i see in Sketchup, seemingly fine:

http://i811.photobucket.com/albums/zz31/Treadshot_A1/ScrnshtSketchup.jpg

This is what Blender shows me:

http://i811.photobucket.com/albums/zz31/Treadshot_A1/ScrnshtExportError.jpg

That's basically what i get when i upload to Shapeways. Shapes, but missing bits all over the place.

I'd really appreciate if some who had some spare time could check this out for me. I've attached the .skp file as that's the only one i have that doesn't have bits disappearing all over the place. Please help? Thanks in advance to anyone who can help. Smile

EDIT: If it makes any difference, this is the reference pic i'm going by: http://tfwiki.net/w2/images2/a/a0/DNaviNeo1.jpg

[Updated on: Mon, 15 August 2011 11:51 UTC]

Re: Parts seem to be disappearing when exporting [message #32712 is a reply to message #32711 ] Mon, 15 August 2011 12:39 UTC Go to previous messageGo to next message
avatar Drawn-SteelHero  is currently offline Drawn-SteelHero
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I just tried to take a look, but unfortunately your file won't open in my SketchUp at all. It complains of an "unexpected file type".
Re: Parts seem to be disappearing when exporting [message #32720 is a reply to message #32712 ] Mon, 15 August 2011 13:43 UTC Go to previous messageGo to next message
avatar TreadshotA1  is currently offline TreadshotA1
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Really? I just downloaded the file and opened that one, it only tells me that it's read only, but then opens as normal. Now i'm really worried.

For the sake of making sure, i'll reattach the same file here, but i'm not sure if that'll help.

Re: Parts seem to be disappearing when exporting [message #32724 is a reply to message #32720 ] Mon, 15 August 2011 14:08 UTC Go to previous messageGo to next message
avatar TreadshotA1  is currently offline TreadshotA1
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Woops! It seems i managed to fix the problem myself. Apparently some vertices had been removed when i was exporting due to me...well, without revealing too many secrets, one of my plugins with which i'd drawn the system, the script behind it had a slight bug. I ran a second plugin and got it running perfectly fine in Blender and on Shapeways.

Thanks for your help Ramrider. Always knew i could count on ya, bro. Smile

Mods, feel free to delete this thread now, it's no longer necessary.

[Updated on: Mon, 15 August 2011 14:08 UTC]

Re: Parts seem to be disappearing when exporting [message #33582 is a reply to message #32724 ] Wed, 31 August 2011 00:53 UTC Go to previous messageGo to next message
avatar dynath  is currently offline dynath
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Actually i'd like to know how you fixed this. I have basicly the same thing happening to me though i'm trying to resurface the file with the CADspan plugin for sketchup. but its the same parts just vanishing seemingly for no reason on export.


Check Out my blog dynath.blogspot.com
Re: Parts seem to be disappearing when exporting [message #33657 is a reply to message #32711 ] Thu, 01 September 2011 14:19 UTC Go to previous messageGo to next message
avatar Youknowwho4eva  is currently offline Youknowwho4eva
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Have you tried opening the file in another program? Usually missing faces are due to inverted faces, or overlapping faces.


I learned a long time ago the wisest thing I can do is be on my own side, be an advocate for myself and others like me. -Maya Angelou
michael@shapeways.com
Re: Parts seem to be disappearing when exporting [message #33659 is a reply to message #33657 ] Thu, 01 September 2011 14:28 UTC Go to previous messageGo to next message
avatar TreadshotA1  is currently offline TreadshotA1
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Well, for me, it was a matter that I designed the actual character (the bug like thing) in one program, before exporting to Sketchup and designing it's stand. I made a lot of edits to the model in Sketchup, and everywhere I edited disappeared.

So all I did was have the stand in a Sketchup file, and then import the bug-character, and instead of editing it, just scale it to fit the stand. The scaling doesn't seem to affect the model's integrity, so it worked. I just made sure not to touch the thing.

I've since made a Version 2, which I did by exporting the file with both the DNAVI bug-thing, and the stand, into another program, and then editing it there. Everything worked fine.

I think it's because the two programs I used/use now are both sculpting-based organic modelling programs, which have a lot of polygons, and Sketchup simply couldn't deal with so many polygons when I edited any part of it, causing some bits to disappear. By not editing the Bug inside Sketchup, only scaling it, Sketchup didn't have any issues.

Moral of the story: if you import something with a lot of polygons into Sketchup 8, don't touch it.
Re: Parts seem to be disappearing when exporting [message #33662 is a reply to message #33659 ] Thu, 01 September 2011 17:11 UTC Go to previous message
avatar dynath  is currently offline dynath
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Well my object has a lot of polygons as well but they were made in sketchup. Generally by combining a few hundred spheres/rectangles then using outershell. I tried a couple of times to use ST4SU or SUtoDXF/STL to export the original form but it never seems to work. Couldn't even open the resulting files in NetFabb. as I said CADspan produced a usable product for a while but has started making models disappear. I don't see any reversed faces and Solid Inspector gives me a pass. maybe its the polycount, CADspan might have an upper limit as well.


Check Out my blog dynath.blogspot.com

 
   
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