Hi Rogurt, also see here for some explanation of a similar other situation to your new fillet case:
http://moi3d.com/forum/index.php?webtag=MOI&msg=3557.5

That shows some illustrations on how the fillets between things with differing slopes will not actually align at the same endpoint as the edges - one side of the fillet basically sticks out a ways further than the other side. That's part of what increased the complexity on your particular case - the filleter seems to be messing up trying to deal with the little in between portions that would have needed to be built there.

- Michael

Hi Michael,

thanks for your explanations. Very often I find that it is quite hard for me to find that one correct way to build such a simple model so it will suit for further tweaking.

While I really appreciate that you help us users each and every time, it really takes some time to figure things out this way. In professional application I could not spare that time (the model had to be build in few hours time). A befriended 3d artist mine bought MOI when he saw it on my computer and loved the simplicity but a few weeks later he switched to rhino for exact that "why the heck does the filleting just not work" thing.

Maybe there could be some sort of debug window or colored display of surface curvatures which gives me a clue that there might be a problem. So I´d be able to solve things on my own...

Thanks again,
Rogurt

Hi Rogurt - Filleting is not really Rhino's strong suit either, if more robust filleting is your main concern probably something like SolidWorks or Pro/E would be the choice.


> Maybe there could be some sort of debug window or colored display of surface curvatures which
> gives me a clue that there might be a problem. So I´d be able to solve things on my own...

The problem is that it's pretty unlikely that suddenly flashing a bunch of colors on the screen would make you immediate go "oh, it's the curvature of this surface that is causing the problem"....

- Michael

The only problem I find with MoI is the lack of variable radius filleting. Michael says he is working on it, so we will have it eventually.

As for filleting success, it often depends on the underlying engine. Autodesk have developed there own having broken away from the standard ACIS kernel when Spatial were acquired by Dassault (owner of Solidworks and a Parasolid engine user).

You can get Inventor Fusion for free at the moment. Often it's filleting engine will succeed where MoI's fails particularly where edges join at acute angles.

;)
Inventor Fusion
The Microsoft Windows compatible technology preview executable expires on April 1, 2013.
The Apple OS X compatible version of the technology preview expires on January 1, 2013.

Else you can see this tutorial for complex Fillets inside Moi by MajikMike ;)
http://k4icy.50webs.com/tutorials/Fillet_Using_Sweep_and_Blend.html

I use the built in Error notification/discovery supplied with MoI. If the fillet doesnt work, review the area being filleted. This same mechanism is also used in "professional" environments daily! :o

Maybe if the fillet is difficult, that want to say that the form is not natural and tortured! ;)

At the French Billiard when you must make a "massé" that want to say that your previous play was not optimum ;)

Minute 4.09 - 4.18 :)
This nature of keep the 3 balls along the side of the billiard is called "The american" ;)

@Frenchy Pilou: Many thanks for the tutorial link. This is really good information...

@BurrMan: "I use the built in Error notification/discovery supplied with MoI. " You mean "zooming in and examining", right? Or ist there something I have not discovered yet?

Zooming in and examining is what you do AFTER the fillet errors.