Scan/3D Mesh to Surface

[Moustakalis]

Hello all,

I am looking for the best way to make clean surfaces from a 3D Scanned part to make it clear-surfaced and work with it in Alias. I have the 3d scan perfectly cleaned and smoothed. It resembles 100% the real one.

I am not sure I am allowed to say it here. But I tried to surface it with Geomagic Wrap but the model is not clean.

Any suggestions?

Thanks!

[shinji-pons]

Here are a few suggestions (in order of preference):

1. The absolute best way would be to reverse engineer the part using traditional NURBS modelling, if you know how to. Most time-consuming but will give you the best quality.
2. Use the SubD Retopo tool to get a close approximation of the part while sacrificing a bit of surface quality, but it will be much faster than method 1.
3. Use automatic tools like remeshers in third party software to get a close approximation poly model that you import in Alias. No manual work but quality will vary greatly depending on which software you use and the input geometry.

[shinji-pons]

Is your part/project confidential? Perhaps I could give it a shot in my spare time.

[Moustakalis]

Unfortunately I cannot hand any 3D or physical part or even tell what object those parts construct. But I would heavily appreciate if you could screen capture 20 seconds of you using the tool and maybe indicate me a trick or a known troubleshoot if you use the tool for long and you know something that you are sure it will bug me!

Basically I want this: https://www.youtube.com/watch?v=ZBmOw4RZ8Bw

But the part is too complex and half of the surfaces are not being constructed no matter what. Even if I define them better, then another one breaks and that is especially frustrating given I want it to have as big and single surfaces as possible.

Thanks in advance and for your previous intention! (I will also be accepting your solution once tried the tool)

[shinji-pons]

I don't know how to use Geomagic so I can't help you there. But in Alias, you could try using the Retopo tool. As I said in my previous post, it will produce a SubD model so the precision won't be perfect (you will have to add a lot of control points so that the resulting surfaces stick to the mesh as close as possible, which will result in a poorer model).

If you want a quick introduction to the retopo tool, I suggest watching this video: https://www.youtube.com/watch?v=8obCwkXFbyg

But if you say that you want as few surfaces as possible, then manual surfacing is the way.

[BarryKimball]

I would suggest this video for info on the Autodesk Alias Retopology tool.

https://www.youtube.com/watch?v=_GSDYi2KUDs&t=125s

[Anonymous]

I was also looking for the best & easiest way. Thanks for sharing this information.