Invert Form and create shapes around it

[Anonymous]

I created a 3d-model with photogrammetry. This model has not been scaled yet. I want to import it into Fusion, scale it properly and then build something around it(ie a negative), either

1. automatically(with some margin) or
2. manually

For instance, I scan my hand in a holding position and want to create something that I can naturally grip.

Which workflow do you recommend?

[chrisplyler]

I recommend squeezing some clay in your hand and then scanning that.

[Anonymous]

Good idea, yet this was just an example to illustrate my point. Is Fusion able to do this and if so, how?

[etfrench]

It depends on how much data is in the scan and its file format.  Fusion 360 is rather limited in the number of facets an STL file can contain.  If your scan file is small enough, then Fusion 360 can easily make the negative shape using the Extrude|Cut command.

[TrippyLighting]

With a little hand work and realistic expectations on precision a hand piece as you described can be done.

But for precision reverse engineering Fusion 360 does not really have the tool.

But then, the vast majority of  people don't have the scanners that produce good input data either 😉

[chrisplyler]

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@Anonymouswrote:

Good idea, yet this was just an example to illustrate my point. Is Fusion able to do this and if so, how?

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Squeezing clay was just a euphemism for the never ending, zen-like pursuit of Fusion 360 mastery. Squeeze some clay, my son. Wrap your fingers around the cool, smooth Fusion 360 experience. Put a little pressure on it. Feel the resistance. Focus on the goop squishing out between your knuckles. Watch little bits of it fall, as if in slow motion, to the floor, like small failures ruining your efforts. You can try sticking those bits back onto the lump in your hand, but it isn't going to be the same. In the end, you'll have to start over with a new lump and try to squeeze it with a bit more tenderness. That's exactly what the Fusion 360 experience is.