Hi Michael....

I have tried to pick a little bit outside the fillet area, but cant figure it out. Maybe you can give me step by step instruction ? Attached is the original model before trim and fillet.

Hi Danny,

Your tips so powerful. Previously I though that the seam edge is ok, because its collinier with the "half body line".
Would you like to explain about this seam edge behaviour Michael....

Thanks

Hi Anis - the main thing is that you need to use Edit/Separate to break the model into individual surfaces first, before you can perform surface/surface style filleting.

Otherwise if you select faces that are part of a larger joined object, it will try to do edge filleting of the edges that belong to those faces instead of surface/surface filleting.

- Michael

Hi Michael....

Hi Anis - you're clicking there very close to the shared edge between them - that's the area that you have to be further away from.

Try to pick the surfaces further away from that spot, don't do it while you are zoomed in closely or else you will run into the problem.

For example, try picking more in the area of these red dots instead:



- Michael

Also, it kind of looks like you may not have separated the bottom piece into individual surfaces - you need to select that and use Edit/Separate on it so that it is broken up into the 2 half surfaces as individual objects. Then the surface/surface fillet will work.

- Michael

Also one other note - if you have a few faces selected out of an object instead of the whole object, when you do Separate there, it will break the selected faces off from the main object but still have them connected between themselves. That allows for kind of extracting a sub-assembly without having to re-join it.

If you want to break a face sub-selection like that into individual surfaces, hit separate a second time which will then break it into individual surfaces.

If you have a "whole object" selected, it will break down into individual surfaces when you do separate. If you have a face sub-selection then will do the "extract face sub-assembly" type thing.

You may have run into this - if you had a face sub-selection and did separate you did not quite get things down into individual surfaces at that point yet.

- Michael

Hi Michael....

I have tried that. But still cant get a result. No problem, I will use Danny tips that looks working fine.

Thanks Sir.... ;)