I heard that blender is very bad to do instustrial-design and product visualisation and that he lacks hard in nurbs and nurbs-handling.
so my question is is there any free (opensource) nurbs-modler (not cad) out there (maybe something like rino? http://www.rhino3d.com/)
Ayam: http://ayam.sourceforge.net/
I heard that blender is very bad to do instustrial-design and product visualisation and that he lacks hard in nurbs and nurbs-handling.
Take a look at the Gallery Archive of Blender to see what you can do with it. Product design and product visualization can easily be done with Blender, even without NURBS. Blender isn’t a NURBS modeller like Rhino so the modelling process is a little differrent.
I dont know if blender is strong in instustrial-design, I just heard he’s not or few support for the NURBS model technic. And anyway I didn’t find a advanced tutorial to create Product-visualitation (how to make a ipod, how to make a TV…without getting 2000 polys per object)
…I understand that this is not a so important issue for the most peoples…normaly poly works fine for the most modelling work…but when you want to have an object that has exact round corners, edges and other geometrical needs…then maybe polys doesn’t works fine…
…somebody maybe got an “advanced” blender-industrial-(nurbs) tutorial? or now where that I find some?
thx for the Ayam link, I’ll check that piece of software out…
…I understand that this is not a so important issue for the most peoples…normaly poly works fine for the most modelling work…but when you want to have an object that has exact round corners, edges and other geometrical needs…then maybe polys doesn’t works fine…
You might be suprised how many NURBS modellers convert their NURBS to polys before rendering…
yeah…that possbile…and I belive you…but
…I want to use nurbs especally to model exact what I want, that edge what I want and that body what I want with exact cordinates…not what I maybe become with polys…and thats the power of nurbs…as I sayed
…I am not a NURBS specialist…but I think NURBS has his special powers…for some issues, but: no problem; I normaly work with polys but I only want to know, when I need to work with exact cordinates if I want to…but anyway Ayam looks good and I think that program can do it…i will check that out…
thx anyway
You can download Amapi 6.1 for free:
http://www.eovia3d.net/downloads.php?do=file&id=1
I use Amapi Designer 7.1 and it includes NURBS and is a decent tool for product design.
Hope this helps.
I am in no way a CAD expert nor a professional grade modeller, but if there’s something I’ve noticed on my online travels it is that truly tremendous work can be created using a variety of different modelling techniques.
Note the word “technique” in there.
I’ve never understood nurbs very well, but I think the ability to model high-quality models with varying degrees of accuracy depends quite largely on the talent behind the mouse or graphics tablet.
Just some of my thoughts.
I figure that if you’re a high-quality modeller with CAD experience, then naturally you’ll want tools you’re comfortable with 
(Also, keeping it on topic… I thought Blender had support for NURBS stuff? or am I missing something completely different?)
Blender’s surface objects are all nurbs objects. You can also find some 2D nurbs objects under the curves menu.
Currently, Blender is a little weak in surface modelling, but very useable nevertheless.
Nurbs are very convenient just because you can define and modify complex or subtly nuanced surfaces very easily with just a few control points: something you cannot easily do with polymeshes directly.
The ability to use them is often a great convenience.
But keep your eye out… help’s on the way!
Google for Hamapatch and JPatch and Spatch. These might be options for you.
Ayam is greate but is there a converter for Blender ?
I don’t see why you can’t do this with the standard polygon sub-surface modeling that’s in Blender. I’ve done it before, and I had no problems doing product design with it.
Most 3D programs use sub-surface modeling, and there’s a reason. You just need to learn how to model objects using it. Modeling is a problem solving process, and once you know how to use the tools, you can make anything with it; organic shapes or those “exact round round corners, edges and other geometrical needs”, you can do it all.
Is not nurbs but patches, but I liked a lot modelling with Hamapatch.
So, in layman’s terms, what’s the difference?
dunno
I am only an artist who actually has managed tools with “nurbs” and others with patches.
And I prefer patches, usually. To me they were more quick and flexible…
Hash:Am , Spatch, Hamapatch, Jpatch do use patches. And I like that kind of modelling for some models.
About nurbs, I only handled a bit Rhino(were actually nurbs?), Max, Nurbana in th every old times, anothe free whose name can’t rememeber, and Ayam nurbs. Not Maya ones which I’m told are great.
Non Uniform Rational Splines ?
I have a friend who had coded a game engine that is based on patches… he’s a beast in programing, btw…
I’m not entirely sure but nurbs are basically the same as splines they’re just a higher order of the beast. Nurbs can do more things like boolean, campher, other junk. Patches use a more simplistic math. I think. Something like that. The programs mentioned above won’t be able to deliver 3 decimal point precision either, as is often required in the engineering world. Patches tend to take a more artistic approach to the modeling process with a mind set of, “if it looks good it’s good enough.” 
oh, btw.
The one which started it all in world of freeware for patches, at least of which I know of :
Spatch .Obj support by plugin, I think, u can convert the files it exports anyway.
http://www.geocities.com/getspatch/
An interesting and later variation. I just don’t like how it locks in rotation when rotating 360º…but VERY useful and good tool
Hamapatch. Strongly recommended.Obj support .
http://www.geocities.com/hamapatch/program/
Another later flavour, and in very active development last time I checked… is java, so all can use it with a JRE… I do really love this tool, I hope to see it evolve. My main tool is wings, but is sweet to model with patches soemtimes.
Jpatch . Is having bones and planned animation support.Obj support .
http://www.jpatch.com/
Ayam seems a very advanced nurbs modeler in the free world. Obj support .
http://ayam.sourceforge.net/
Go get it too if interested in these o additional ways in modelling.
Obj support, or similar, can share meshes with Blender very easily.
I got in love with polies and subdivs long ago, but I still like to model like I did before: metaballs, mesh-smudging, or patches.