Hi nameless yes if the fillet handler was able to build fillet surfaces, but wasn't able to figure out how to trim away pieces of the original object to make space for the fillets, it will generate those surfaces. They're not curves, they're surfaces but they are sunk down into the object so all you see of them are the edges.

And yes it does that so you can have a chance at using them to still finish the model.

Sometimes a boolean may work with them but also sometimes you might need to do some manually trimming.

- Michael

If you have fillets always very rebellious you can try this free one! ;)

(Export files from Moi as Step format, import to Moi as Sat Format as shown following posts )

https://moi3d.com/forum/index.php?webtag=MOI&msg=6186.51

Michael:

Gotcha. It makes sense :) Thanks for the explanation!

Pilou:

I have this prog available after you posted about it. It's nice to have a back up plan if you hit a dead end. I also found 123D useful, but 1. I am allergic to Autodesk (even if it's free) and 2. EVERYTHING else after using MoI for a while is like swimming in bubble gum. MoI's speed and the design flow you can get is so empowering.

<< bubble gum

or marshmallow! ;)