car tuning modeling

[Sasso SP]

Bye to all,

are to ask you advice on how to optimize the modeling process for car tuning.
Recently in the company where I work we started working on aesthetic modification of cars already in production (tuning).
the process I use is very simple, scan the body shop reverse engineering on it and subsequent modeling of the new shape.
the program used is v5 using the modules supplied gsd and fs.
I usually reverse with sections and lines, even if I find it difficult to go to do the right subdivision of the surfaces, then I start to model creating a lattice of curves on which I will go to edit the surfaces.
to make the lattice use the classical sketch modeling, combines and some 3d spline (fs) being that in this phase the priority and style of the curves becomes very difficult with this type of parameterization to be able to easily change the lattice.
the final part and that of smoothing the surfaces where there are imperfections through the local modification of the individual surfaces per points.
I want to point out that I am not a designer, I worked for 3 years on body shop however in another firm and with different processes.

Thank you.

 

[MarcoBi]

years ago, I made molds for aftermarket bumpers.
I digitalized the bumper with an arm digitizer and drew the curves and sections.
then with catia v4.20 (on unix) I reconstructed the bumper and then modeled the mold.

 

[MarcoBi]

years ago, I made molds for aftermarket bumpers.
I digitalized the bumper with an arm digitizer and drew the curves and sections.
then with catia v4.20 (on unix) I reconstructed the bumper and then modeled the mold.
sometimes I used nets but since they are unmanageable I limited their use.

 

[Sasso SP]

Hello, Marco.
your might be an alternative but considering that I have scan I would say that it would be counterproductive to go to detect lines with a tastator directly on the physique.
I am trying to optimize/understand how to create a style parametric model with the tools available.
I see that it is sectoralized for job/programme (reverse, setting, cas and engineering) but this can apply to a large, uneven and totally new products.
I have to make changes on existing cars (30/40% of the body shop) is trying to figure out if there are other easier roads.

 

[MarcoBi]

but I assume that by doing tuning you only make "local" changes or compunque "partial" of the carrozzeria.
I would only use scanning for the area of interest.. But maybe I don't know what you mean to optimize.

 

[Sasso SP]

the changes concern bumpers ant/post, bonnet, brancardo and not always but pavilion + bonnet post, the scan as well as give the car references the use as rightly you say for the areas of interest.
what I would like to optimize is the work process that I use, above I explained briefly, understand if it is right to proceed in this way.

 

[MarcoBi]

I'm not. I remain of the idea that it is better to reconstruct the surfaces as the designer/designer built them or creating all boundary from scratch or, at the limit, after having obtained them (and treated) with a digitizer.
this because a possible change is certainly more controllable and easy.