problem with loft

[montaviale]

Hello everyone

I am a solidworks self-taught and I wanted to ask you a couple of info about a processing. a few months ago I made a mold of this wing.. the mold did not come perfect due to slight constant undulations on the whole length of the piece. at first I thought it was a problem of cutting due to vibrations of the cutter but then I immediately realized that it was not so.. The problem lies in the drawing... using zebra stripes I realized that the design presents constant undulations like those of my mold... the piece is made thanks to a finite series of sections that were used to generate the loft.. How can I solve the problem? I tried to change the design, creating the piece as a surface but nn me let it change with free form because it says it is too complex.. .

ideas?

Thank you.
faith

 

[meccanicamg]

Bye. I'll be synthetic. after you have completed the good user bureaucracies by presenting you in the appropriate section as indicated in several sources Could you attach the image "of this wing" you mentioned above to better understand the problem? or see the feautures in detail? there must be some driving curve that is not good or is absent.

 

[SolidUser]

mail the file.

 

[montaviale]

mail the file.

Sorry. adex I introduced myself.
I attach a screen.

 

[montaviale]

Sorry. adex I introduced myself.
I attach a screen.

here is the file

 

[SolidUser]

I looked at your file and wanted to tell you that apart from the uselessness of certain buildings, due to the poor knowledge of the cad, the beautiful surfaces are born from beautiful curves.
also the guide curves must pass through the construction points of the curves.
If you lack knowledge, you will never get beautiful surfaces.
I attached a macro to the macro argument that creates the airfoil curves.

 

[montaviale]

I looked at your file and wanted to tell you that apart from the uselessness of certain buildings, due to the poor knowledge of the cad, the beautiful surfaces are born from beautiful curves.
also the guide curves must pass through the construction points of the curves.
If you lack knowledge, you will never get beautiful surfaces.
I attached a macro to the macro argument that creates the airfoil curves.

thanks for the macro! cm tips to create an evolving wing? surface or solid loft? with a series of sections? What's wrong with geometry?

 

[montaviale]

very nice your macro but nn I see the difference between an imported profile with your system or an imported profile through insert curve through xyz points... the profiles of that wing were transformed from dat to txt file and then imported... Perhaps the problem of the bad surface comes from the finite number (reduced) of points of the profile. .

 

[SolidUser]

thanks for the macro! cm tips to create an evolving wing? surface or solid loft? with a series of sections? What's wrong with geometry?

the algorithm that generates solid loft or surface is the same, for the only difference that on the initial and final profile puts us a closing surface to turn it into solid.
therefore as written, the surface is dependent on curves.
If they're ugly, they're ugly too, don't you think?
When importing points, it should be verified if there are values that lead to a bad closure of the curve.
If you see through a zoom, there are strange traits.

 

[montaviale]

the algorithm that generates solid loft or surface is the same, for the only difference that on the initial and final profile puts us a closing surface to turn it into solid.
therefore as written, the surface is dependent on curves.
If they're ugly, they're ugly too, don't you think?
When importing points, it should be verified if there are values that lead to a bad closure of the curve.
If you see through a zoom, there are strange traits.

I gear you up for the answer.

 

[SolidUser]

very nice your macro but nn I see the difference between an imported profile with your system or an imported profile through insert curve through xyz points... the profiles of that wing were transformed from dat to txt file and then imported... Perhaps the problem of the bad surface comes from the finite number (reduced) of points of the profile. .

There are profiles, and I do not know that, which are generated by a mathematical function and therefore the curve is 'beautiful', because generated through the bees of sw.
other profiles are generated by a list of files present under a folder and then I see it as a small database.
Moreover each profile can be generated directly on a pre-selected 2d plan.
I wrote piano 2d and not 3d as you generated.
Also as written, you can't generate driving curves that don't pass through an airfoil profile building point.
I attach image to make you understand the speech.
in your case, the profiles generated by importing points are bad.
see if you simplify the number of points or try to make them match the end in one point, then you can convert them into spline.
See you.
Remember....beautiful curves = beautiful surfaces.

 

[Parametric_Ozzy]

bisognerebbe unare mathcad...

 

[montaviale]

There are profiles, and I do not know that, which are generated by a mathematical function and therefore the curve is 'beautiful', because generated through the bees of sw.
other profiles are generated by a list of files present under a folder and then I see it as a small database.
Moreover each profile can be generated directly on a pre-selected 2d plan.
I wrote piano 2d and not 3d as you generated.
Also as written, you can't generate driving curves that don't pass through an airfoil profile building point.
I attach image to make you understand the speech.
in your case, the profiles generated by importing points are bad.
see if you simplify the number of points or try to make them match the end in one point, then you can convert them into spline.
See you.
Remember....beautiful curves = beautiful surfaces.

Thank you so much for the advice you're giving me! First of all I will turn the curves into spline to see if it improves something.