| facets in stl [message #24571] Tue, 08 March 2011 03:33 UTC |
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hi,
In my stl file that was created from Rhino 3d, I see facets although the native model is all smooth. Is this typical?
I set the polygon resolution very fine. The folks at Rhino said to set the stl mesh resolution to match the 3D printer resolution.
Any tips?
Anyone know the Shapeways rapid prototyping machine resolution?
Thanks
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| Re: facets in stl [message #24610 is a reply to message #24571 ] Tue, 08 March 2011 18:50 UTC |
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You can check the material resolutions on their individual pages (under support, under materials on the top bar) Rhino uses Nurbs to model. STL uses polygons (each surface is created by a 2D triangle of mesh) so it has the faceted effect you mention.
The Mad Moder
michael@shapeways.com
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| Re: facets in stl [message #24614 is a reply to message #24610 ] Tue, 08 March 2011 20:04 UTC |
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I checked with Rhino, they said to match the .stl resolution to the Rapid Prototyping printer resolution and the facets will not show up in the model.
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| Re: facets in stl [message #24617 is a reply to message #24571 ] Tue, 08 March 2011 20:15 UTC |
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That is correct. But having such high resolution means more polys so you have to remember to keep under the 500K poly limit.
[Updated on: Wed, 09 March 2011 18:21 UTC]
The Mad Moder
michael@shapeways.com
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| Re: facets in stl [message #24621 is a reply to message #24617 ] Tue, 08 March 2011 20:25 UTC |
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I sent in a file that was 1,946KB (almost 2MB) and the system took it in and quoted it.
If I order a print will the system somehow down size it to 50KB?
[Updated on: Tue, 08 March 2011 20:26 UTC]
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| Re: facets in stl [message #24624 is a reply to message #24571 ] Tue, 08 March 2011 20:36 UTC |
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No no no  500K polys as it 500,000 polygons. If you've uploaded, you are fine as far as file size and poly limits
[Updated on: Wed, 09 March 2011 18:21 UTC]
The Mad Moder
michael@shapeways.com
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| Re: facets in stl [message #24673 is a reply to message #24571 ] Wed, 09 March 2011 18:22 UTC |
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I know not of what you speak I see 500k on all of them...  I really need to learn to check my facts.
The Mad Moder
michael@shapeways.com
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lol. Yes I know it's 500,000 triangles. My stl export exports to triangles, not sure about everyone else. But saying triangles is probably better seeing it would be confusing uploading a 237K poly model and having it rejected once broke down into triangles. 
