Hi Paquicinno, probably that's what offset of a face selection ought to do but it isn't what it does currently. Currently for a face selection it separates out the selected faces same as using Edit > Separate and then offsets that separated piece.

Are the objects you want to process like this a cuboid type shape bounded by planar faces on all sides? If so I can probably cook up a script to do this.

- Michael

After seen your third file it's -15 that you must enter inside the Constant Node ! :)

So what will be the more simple : select 2 loop of edges by my system
or the 4 faces of the futur soon Michael ?

The Michael one will surely more polyvalent! :)

And avoid some headaches! :)
And no need to have 2 Selected nodes! :)
Alas seems the Offset "internal" bugged! :(

So, just looked at the last file.

""""""""""Are the objects you want to process like this a cuboid type shape bounded by planar faces on all sides?"""""""""""

No, kindof twisted a bit...

So I think Inset can do it currently, try setting the Thickness = 0 so it won't make a border and then check "use separate height" and put in your offset distance as the Height value.

If you want to keep the cut away portion as a separate object you can do that by checking "Grooved" and set groove width to 0.

- Michael

Missed that sneaky frontal assault from the rear!

That does it.

Michael,
Is there any "robustness" left in the geometry kernel regarding Offset\Shelling that you just haven't implemented? Or are we at the limits of what's available...

Thanks.

Hi Paquicinno, also one thing to note is that with surfaces that are not at a 90 degree angle to each other, offsetting surfaces will be a different result than offsetting edges + loft like you were doing before.

- Michael

Inset don't work for this objects! ... ;)

Hi Burr,

re:
> Is there any "robustness" left in the geometry kernel regarding Offset\Shelling that you just haven't
> implemented? Or are we at the limits of what's available...

Not really - it's got some fundamentally broken assumptions in it in this area. I think it could be a possibility to write a new one from scratch (unlike fillets) but it might be better to try to get this area better by integrating a different geometry kernel which I have to do anyway to improve fillets.

- Michael

Hi Pilou,

re:
> Inset don't work for this objects! ... ;)

It's working for me over here. Set Thickness = 0 and check "Use separate height" and put in the offset distance as the height value.

re: video - in your video you're not following the instructions I posted above.

- Michael

Frenchy,

Michael,

Aha! Well, fingers crossed for what the future holds on that...

Aaaah! Damned! It's a secret trick! :)

Excellent! Absolutly not logic but if it's works... :)

The Inset Function is endless surprising!

Basically the Inset command is focused on carving off a slab of the object and doing some other work on it but in this case you want to just throw away the slab and not have a border around it.

- Michael

I don't think the inset command gets the love it should. For me, the nomenclature just didn't "speak" to me, or "make perfect sense...

So, for me, it may be adding a second tick.

To me, "inset" would be "how deep the slab carved off. (No border preserved)

Then a tick for border thickness adds the outer border, at some thickness.

Then groove, changes the slab removal, into a groove removal.

Then "use separate height" would add a second depth to the "slab part", separate from the groove part...

I think i really just need to spend an hour on the inset command, to wrap my head around it and its setup better....

So i just revisited the inset command with regards to what i just said.

So the initial inset and value, just combines both the depth and border as a single value.

Then use separate height adds the separation between the 2.

The grove value uses to 2 separated just like the first choice, but loses the initial "slab depth" value, and ability to separate that out... the grove is controlled by the separate height and groove values. The initial thickness value is missing

And what a complexity when it's applyed to just adjacent faces! Internal / external! :)

Hi Michael, the inset trick works perfectly, just simple and easy. Thank you all.

And what's great is the opposite result with a negative value in the height field. An easy way to extrude some tricky faces of a solid.