| 3d Software doesnt make sense. Someone please give me some advice [message #56036] Sat, 27 October 2012 16:15 UTC |
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Hello there, I have a BFB 3d touch printer and I am having a problem. Everytime I try printing it keeps closing the holes. I have tried a repair in netfabb studio but it keeps closing holes that I need open.
Please read post: http://www.bitsfrombytes.com/eur/forum/post/axon-2-keeps-fil ling-when-i-dont-want-it
I am new to 3d software, and i am looking for someone to explain and possibly show me how to fix this.
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| Re: 3d Software doesnt make sense. Someone please give me some advice [message #56047 is a reply to message #56036 ] Sat, 27 October 2012 18:43 UTC |
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The simple answer here is that computers are stupid, and that the computer can't read your mind. 
Most "Hole Correction" algorithms tend to go with a simpler geometry rather than try to create a more complex one.
Rather than use your complex example, let me try to explain using a simpler item:
Here on the left, you can see that there are two holes (top/bottom), but there is no internal structure.
If you use most any "Hole Correction" tool, it is going to just plug the two holes as surface defects, and not create a passage THRU the object.
What is necessary is to have the vertexes that I've outlined on the right in white, and you must have the faces shown in yellow.
Your model is missing these "internal" faces.
To repair this, you must do one of two things:
1) repeat the original subtraction, ensuring that interior faces are created properly.
2) if your tool allows, you could add the vertexes and faces manually
Attachment: Edges.jpg
(Size: 210.29KB, Downloaded 215 time(s))
Patience, Persistance, Politeness - the 3Ps will help us get us to Perfect Printed Products
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| Re: 3d Software doesnt make sense. Someone please give me some advice [message #56048 is a reply to message #56047 ] Sat, 27 October 2012 18:44 UTC |
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Here's my attempt at fixing it.
Patience, Persistance, Politeness - the 3Ps will help us get us to Perfect Printed Products
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| Re: 3d Software doesnt make sense. Someone please give me some advice [message #56049 is a reply to message #56036 ] Sat, 27 October 2012 18:45 UTC |
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Hi,
I looked at the postings you referred to and your correspondent is correct - the model is non-manifold, meaning it's outer 'skin' is not continuous and has holes. This is why your model will not print correctly.
You need to go back to your software to correct the issue. Believe me, if you're a beginner like me, this is easier said than done.
Best of luck, and you can always post back here if you have difficulties.
mygadgetlife.blogspot.co.uk
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| Re: 3d Software doesnt make sense. Someone please give me some advice [message #56050 is a reply to message #56048 ] Sat, 27 October 2012 18:52 UTC |
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| stonysmith wrote on Sat, 27 October 2012 18:44 |
Here's my attempt at fixing it.
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I....I...I think i love you. That is exactly what I needed. What software did you use to add the vertexes and faces manually?
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| Re: 3d Software doesnt make sense. Someone please give me some advice [message #56073 is a reply to message #56069 ] Sat, 27 October 2012 23:37 UTC |
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Make sure that you downloaded TS 7.6.0 .. the version 7.6.1 had the STL option removed from it.
As to what you're doing wrong in blender... there are several people here on the forum much more capable with Blender than I currently am.
Patience, Persistance, Politeness - the 3Ps will help us get us to Perfect Printed Products
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| Re: 3d Software doesnt make sense. Someone please give me some advice [message #56080 is a reply to message #56073 ] Sun, 28 October 2012 01:59 UTC |
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| stonysmith wrote on Sat, 27 October 2012 23:37 |
Make sure that you downloaded TS 7.6.0 .. the version 7.6.1 had the STL option removed from it.
As to what you're doing wrong in blender... there are several people here on the forum much more capable with Blender than I currently am.
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I was looking under "File" in that software for import and couldnt find it, finally found how to properly import the file. So what did you do to clear the stuff in that software?
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| Re: 3d Software doesnt make sense. Someone please give me some advice [message #56185 is a reply to message #56055 ] Mon, 29 October 2012 20:38 UTC |
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| stonysmith wrote on Sat, 27 October 2012 20:10 |
I use an old school (now free) program called TrueSpace. If you want to try it, you need version 7.6.0. The 'update' version 7.6.1 removed the native STL export from the package.
People (my kids) ask me why I hang onto such an old program (this version from 2008).. It's mostly because I've got "a bit of experience" with the program... I started working with Version 1 way back in 1994.
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Hey! I started on truespace version 1 back in 95! (I was 12 then) I switched to 3dsmax in 2004, but truespace holds a special place in my heart. I met Roman Ormandy at Siggraph 2000 and he bought a group of us users dinner. I hate that it was sold off to Microsoft, and then abandoned.
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| Re: 3d Software doesnt make sense. Someone please give me some advice [message #56240 is a reply to message #56238 ] Fri, 02 November 2012 19:48 UTC |
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In the case of Microsoft buying Caligari that doesn't really apply. They initially bought it to offer something like sketchup for their map system to compete with google. I guess it wasn't what they thought it was.
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| Re: 3d Software doesnt make sense. Someone please give me some advice [message #56241 is a reply to message #56240 ] Fri, 02 November 2012 19:58 UTC |
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| jrey wrote on Fri, 02 November 2012 19:48 |
In the case of Microsoft buying Caligari that doesn't really apply. They initially bought it to offer something like sketchup for their map system to compete with google. I guess it wasn't what they thought it was.
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Yeah that was another reason of course, but usually it's like that.
Autodesk bought Maya (unluckily) to have income from selling Maya instead than losses.
I was scared that they would cut off the project but at least they hold it alive.
Abide.
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