problem thickening surfaces

[BlowJosh]

Hello.
I have recently looked at the world "superfici" of solidworks and wanted to realize as my second exercise a shell of snail.. (I admit it's a bit unusual as a request, but in this way I wanted to repeat the propellers well)
I've made some blurred propellers with the step that by hand decreases and I've tried to fix some "hole" with sweeping surfaces so as to fill the cavities. I then managed to "unite" all the surfaces generated, but I can't in any way inspect them (1mm max), so that we can then work with the functions of the "solid" (which I am much more familiar). .
I'm just a student, so I'd be happy with all the criticisms as long as constructive.. :
Thank you in advance for answers and suggestions,
I attach the file to "solidworks 2010".
alessandro

 

[marcof]

I then managed to "unite" all the surfaces generated, but I can't in any way inspect them (1mm max), so that we can then work with the functions of the "solid" (which I am much more familiar). .

the quality of the surfaces is ugly (see attached image), probably for a incorrect application of the parameters of tangence, curvature etc. sudden changes of the curvature of sure do not help for the functions of thickening.
I only checked the sweep2 surface and allows a maximum thickness of 0.6 mm. You must be sure that the geometry to be inspected allows the offset of the value you want without self-intersections.
in general I feel like I'm telling you that you should review all the modeling to have continuous surfaces, combined and without "ricciamenti"
You went looking for a nice bitch. :tongue:

 

[BlowJosh]

First of all I wanted to thank you for having responded!
the sweep you refer to has become so "rovinata" when I tried to fill the spaces between the various propellers so that I could later combine all the surfaces. .
cmq I try to rebuild it in the next days. .
I just wanted to know if the way I built them was fine, since working with the surfaces doesn't seem to me the easiest thing.. If there is a simpler road and/or faster I would be delighted to make my all your suggestions.. :
Thank you again!

 

[marcof]

the sweep you refer to has become so "rovinata" when I tried to fill the spaces between the various propellers so that I could later combine all the surfaces. .
cmq I try to rebuild it in the next days. .
I just wanted to know if the way I built them was fine, since working with the surfaces doesn't seem to me the easiest thing.. If there is a simpler road and/or faster I would be delighted to make my all your suggestions.. :

I work very little with the surfaces, but I know that their final quality also depends on the quality of the initial curves from which I create them. if you join each other's bows in tangence you do not have the quality of the same curves made with only one spline spline and the surfaces will reflect these approximations. to shape a shape like what you are doing you must plan first to perfection with which curves and with what kind of surfaces to combine everything. where to put surfaces in tangency or in continuity of curvature etc.
It is therefore necessary to know very much but very well how the surfaces behave in relation to the curves that generate them. to hang with the surfaces that seems to me a longer step than the leg. risk working a lot and then lock you in half for the problems I highlighted you in the first post.

 

[BlowJosh]

I realize that I've only got a big problem, but before I move on to another, I'd rather throw my head off and try to solve the problem. .
I had thought as a possible solution that to use a single b-spline instead of different sketches, and more curved guides (eliche), that in addition to being already built with the decreasing steps, they will also have to "combine" respectively with the value in degrees man by increasing hand; In this way I hope to solve the problem of overlapping profiles in the heart of the snail.. another way could be to create the "ultime" propellers with a less spin than those built earlier, then fill the nugget later. .
Let me know what you think. I hope to have been clear and concise at the same time (but I doubt strongly).
soon and again thank you! :

 

[marcof]

I realize that I've only got a big problem, but before I move on to another, I'd rather throw my head off and try to solve the problem. .
I had thought as a possible solution that to use a single b-spline instead of different sketches, and more curved guides (eliche), that in addition to being already built with the decreasing steps, they will also have to "combine" respectively with the value in degrees man by increasing hand; In this way I hope to solve the problem of overlapping profiles in the heart of the snail.. another way could be to create the "ultime" propellers with a less spin than those built earlier, then fill the nugget later. .
Let me know what you think. I hope to have been clear and concise at the same time (but I doubt strongly).
soon and again thank you! :

more or less I understand what you intend to do, but unfortunately it is a type of modeling that to get to decorative results becomes extremely complicated.
Could it work by lofting a number of sections along the propeller?
However, before setting up the full work I recommend you to do some tests on small parts of the snail built only partially to ensure that the chosen method really works.
ask, here on cad3d, on some other forums (rhino, catia, nx, creo and omnicad), if someone wants to participate in this discussion (put the link) at least to have some indication on the methodologies that could be adopted, which could be valid regardless of the cad used. those who use surfaces in a pushed way (and I am certainly not one of those) are few and scattered in the various forums

 

[BlowJosh]

I saw a few videos about surface modeling yesterday. .
this particularly impressed me especially for both clear exposure and simplicity in using the various features!
I recommend it to all (even only to remembrate the bases):http://www.youtube.com/watch?v=fa2-i34uvuo&feature=related

 

[marcof]

I saw a few videos about surface modeling yesterday. .

you will have noticed that to define any curved surface use only spline:wink:

Since you have now been sucked into the vortex of the pigeon try to take a look at this too, to clarify some concepts on the surfaces and their use. http://www.solidworks.com/pages/pro...ction to boundary-freeform and fill-final.pptIt's a supersynthetic ppt because the comments in the presentations are voiced, but it's pretty clear and I have the concepts you can possibly understand better than with explanations page. . .