Hi Wheel, I'm glad that you are having fun with MoI!

> I selected all the edges ( of the extra cut left by trim) and
> deleted which made the curved plane reappear ??? which I then deleted.

This is called "untrimming" - basically when you cut a surface sheet, that same surface is still there underneath everthing and it gets new "trim curves" on top of it for the cuts.

Later on you can remove those trim curve edges if you need to, to recover the underlying surface again.


But you should be able to do fillets though on things that have been split up to have more than 2 edges on them, if you're running into a particular problem with one step of the tutorial it would probably help if you could post a .3dm model file of it here.


> Its not a happy bunny and keeps zooming in and freezing on the 3d viewport.

If you see freezing or problems right in the middle of zooming or panning, that typically means there is a problem with your video card.

I'd recommend going to your video card manufacturer's web site (like http://ati.com/ or http://nvidia.com) and downloading and installing the latest video drivers for your video card, that may help solve this issue.

If that doesn't help, please let me know what kind of machine and video card you have and I will see if I can find out any more information.

- Michael