Hi FiL & Burr - Burr I think you're right about that area giving the fillet some difficulty - that probably is just slightly too much of a crease there. If the pieces met smoothly at that point it would probably be easier to fillet.

But it looks like you can actually select the whole model without scaling it and then do a 2mm fillet - it will then do a fillet in that area that you indicated, and that seems to help making a better corner area for where the fillets on the outer edges come together as well.

So does that work for you FiL to get fillets on those other small areas as well? It looks like it may be difficult to get this filleted without doing those as well.

Thanks Burr for figuring it out!

- Michael