Export a high resolution step file

[x_rejeaunier]

Hello,

I would like to know how to export from F360 (or Autodesk) a step file which has the highest possible resolution.

Thanks for your help,

Regards

[jeff_strater]

STEP geometry is usually very high accuracy, depending on how it was created.  A solid Cylinder in a STEP file is a mathematical definition of a cylinder, so it theoretically has infinite precision, and it is up to the interpreting system to evaluate that cylinder.

Can you add a few more details about your workflow, and what you are trying to achieve?  Maybe a sample model?

[x_rejeaunier]

Hello,
Thanks for this response!
As you said for analytically defined surface the precision is at least theoretically infinite, but, for more “free” surface, I am wondering how the precision is managed. Are there some options, commands, other(?) means to define the level of accuracy needed when exporting a step file?
Thanks again,
Xavier

[TheCADWhisperer]

Can you File>Export your *.f3d file to your local drive and then Attach it here to a Reply?

Can you File>Export your *.stp file to your local drive and then Attach it here to a Reply?

Can you explain how the resulting STEP file is less accurate than needed?

My initial reaction (without any illustrating data) is that you might be confusing *.stl with *.stp export.

[jeff_strater]

Can you explain a bit more about what you mean by a "free" surface?  If you are referring to a NURBS surface, then, yes, the same level of accuracy should be possible, simply because STEP has NURBS surface representations, as well, where we are representing the NURBS surface as a set of control vertices, weights, etc.  The representation is not as simple as an analytic surface like a cylinder or cone, but it is still a mathematical representation.  I suppose that there is some level of approximation that can happen in some cases, but, today, there is no way, in Fusion to specify that  precision.