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Since most of the companies in the 3d printing industry uses 3ds max mainly to create 3d printable models. I would suggest that the shell feature in 3ds max is refined to a level where artists do not have to manually fix the corners. In most cases I end up taking the model into either zbrush or Materialize Magics to get the desired output which slows down production time.
3DSMAX is visualization software; I would suggest that most 3D printing is done with much more technical software (such as Fusion 360) that is purpose-built for the task of slicing, generating temporary supports, and so on.
While 3DSMAX may be more suited for creating more artistic works, they still need to be cleaned up - especially random stuff off the internet which is mostly created with rendering and animation in mind, not printing.
I beg to differ. I manage a team of designers and model makers who solely work in 3dsmax to make printable models for master plans. There is nothing further from the truth when you say 3ds max is mainly a visualization software. The possibilities are endless when you know how to use it properly. The shell feature is one thing that I found to be quite primitive. That's why i raised the issue that I had been dealing with.
Also my team can finish a 5 meter detailed masterplan in under two weeks. Thats 3-4 days for designing (usually LIDAR or some GIS data provided as a starting point) and the rest for printing and getting the final model installed on site. All modelling is done in 3ds max but we are not able to finalize things because hollowing complicated features is literally impossible.
All I care about is production time to be honest :)....The more the number of softwares in your pipeline, the longer it takes to get the files ready. As simple as that.
I'm assuming you are using the shell modifier to add thickness for print strength, and not for detail that will be seen? If so, you can try what I wrote below.
With the shell modifier, check the Select Inner Faces at the bottom of the modifier. Then put on top an Edit Poly, deselect faces where your main hole is at the bottom, and then apply a relax modifier on top with the rest of the inner faces still selected. If the face selection doesn't work well, convert the face selection to vertices (Ctrl click Vertex) and deselect the vertices you want to stay put, You deselect the faces/vertices at the hole so they don't get relaxed inwards.
You could also try using the inner selection to weld close/crossing vertices together.
@PropChad That does work for less detailed models. Issues that I faced with the relax modifier is that there are times the faces move inwards towards the outside of the object. That leads to thinner walls and they eventually leave a hole in the model. I am not saying that the method you suggested is wrong but it takes almost the same amount of time as exporting the model and fixing it in netfabb or magics if you end up looking for walls that are super thin.
