Hi Jörg, I've attached a 3DM file for a version that is joined into a solid, I untrimmed and retrimmed various pieces to fix some of those structural problems that I showed above.

It should now import into 123D for you, and you'll probably have some better chance of getting the fillet done over there - you'll likely run into some problems filleting that area with MoI because I think the various pieces are meeting up at some slight shallow angles to one another rather than being smooth to each other.

I think some of the parts that look like arcs are connecting together not by the arcs endpoints but by some point inside of them, that makes for a very slight shallow angle between the pieces and MoI's fillet engine tends to have problems with such shallow angled pieces.

Here's an example of one of those shallow crease areas:






If you had those pieces meeting up more fully smoothly to one another instead of with just a slight few degrees crease between them it would have a much better chance at being filletable in MoI's fillet engine - it tends to be pretty sensitive to this particular kind of situation of things meeting each other almost smoothly but actually being a few degrees off from actually being tangent to one another.

Anyway I hope the attached solid 3DM version is helpful for you.

- Michael

Hi Michael,

thank you for you support -and all other too, a big THANK YOU!-
Your model looks great, very clean and it is ready to fillet the edges.

Can you explain how you solved the problem?
How do you get away the unnecessary cuts / edges
without having to re-engineer all need?
I can look at the file, but do not the way to solve the problem.

New cuts are set through trimming?

My approach is this: I Separate the parts from each other, then create the curves from the edge selections. I use for lofts or sweeps.
I'm not sure whether this is the right way.

To generate the curves from the edge, it seems to me to be the only way to create new interfaces between existing areas.

The edges of your model are continuous! How did the surfaces have created?

Greetings
Jörg

I need to watch more tutorials to understand how to model in Moi working properly in order to get a clean result.
Do you know a tutorial that such topics treated?

Hi Jörg,

> Can you explain how you solved the problem?

I used "untrim" to erase the trimming boundaries on those pieces and that then recovers the full original underlying surface, I then retrimmed them with your curves to make a better quality trimming boundary.

There's a short description of untrim here:
http://moi3d.com/forum/index.php?webtag=MOI&msg=444.4

And there's a longer tutorial on these kinds of object repair techniques here:
http://moi3d.com/forum/index.php?webtag=MOI&msg=446.17


> How do you get away the unnecessary cuts / edges
> without having to re-engineer all need?
> I can look at the file, but do not the way to solve the problem.

There were some areas where there were several cut up pieces that were actually parts of the same original surface. When 2 surfaces come from the same exact underlying surface you can use boolean union on them and it will be able to eliminate any in-between edges in that case, it can also heal (remove) edges between 2 co-planar planes in the same way.

So to clean those up I used Edit > Separate on your model to break it into individual surfaces, then picked 2 of those fragments at a time and then did boolean union on the 2 fragments to get a result without any interior edges.


> New cuts are set through trimming?

Yes, after an "untrim" to get rid of the badly formed boundaries then I used Trim after that to cut it to a cleaner new boundary. At one point I took one of your longer curves and flattened it down to 2D to use as part of the trimming boundary.


> My approach is this: I Separate the parts from each other, then create the curves from
> the edge selections. I use for lofts or sweeps.
> I'm not sure whether this is the right way.

This is how I formed the actual surfaces - however you need to have clean trim boundaries in order to use this technique - things like little tiny weird edge fragments like you had before will lead to problems.

Once I got all the edges set up cleanly I picked 2 edges at a time and did a Construct > Loft to build the surface between them, then those pieces were joined to the other ones.


> The edges of your model are continuous! How did the surfaces have created?

In some areas I used the Merge command to merge together a bunch of fragmented edge segments into longer edge pieces:
http://moi3d.com/2.0/docs/moi_command_reference10.htm#merge


But it's actually best to try and avoid needing to do these kinds of repairs in the first place, if possible you want to get the model constructed out of somewhat more simple and cleanly meeting pieces from the earliest stages.

- Michael

Hi Jörg,

> I need to watch more tutorials to understand how to model in Moi working properly
> in order to get a clean result.
> Do you know a tutorial that such topics treated?

I don't really have a whole lot of tutorials in general - the ones that are available are listed here:
http://moi3d.com/resources#Tutorials

One general tip is to try and build some pieces more as extended pieces initially that then get cut to their final outline, rather than going around and doing things in a "patch by patch" manner.

There are some tips for people from a poly modeling background here which may be helpful:
http://moi3d.com/forum/index.php?webtag=MOI&msg=4865.2

- Michael

> So to clean those up I used Edit > Separate on your model to break it into individual surfaces, then picked 2 of those fragments at a time and then did boolean union on the 2 fragments to get a result without any interior edges.

Yes, this is a good way to rebuild objects. It works fine :)
Thanks for the description in your links.

The additional commands are great! At this point i didn't know the other commands, but the "rebuild" function for curves.
I now understand much more about how to create "clean" surfaces in Moi.
Your support helps me a lot!

Thank you!

Jörg