> can generate fully [...] parametric 3D geometry. >> This is obviously a lie without even testing it. STEP files do not have any sort of support for parametric features.
This is a simple misunderstanding/semantic issue. We aren't trying to misrepresent anything, we (and some others in the research community) interpret parametric as "being composed of primitives with parameters". We have an internal representation we don't expose to users, and we convert that to a B-Rep STEP file which we do expose.
>> Every dimension is wrong aside from the one that I corrected to get the same scale (there doesn't appear to be any correct relative to each-other which is why I just picked one at random)
Visually this output looks close. There are some gaps, but looking at your screenshot, features like the main hole going all the way through are underdetermined. It's very hard for a model to know because even if the hole did not go through the input would look the same. All of this can be fixed by having richer input conditions, and we are actively working on this for SGS-2
>Yes, this is also confusing me to no end. How can they make such a claim? They even explicitly state that they generate a B-rep (boundary representation) output only, then in their roller example they say "as the output is parametric, dimensions can easily be adjusted." Erm, no? I'd rather model it again with the proper feature history tree and constraints instead of fiddling with a step file.
SGS-2 will include a feature tree representation, so this should be more easily editable than this (which should already be easily editable in many cases as well with direct modeling). Several engineers already work with STEP files in their work for to the best of my knowledge.
Thanks once again for all the feedback! We are incorporating all this into our next model.