HI Psygorn, that's looking really good now! The MoI filleter seems to be having a problem where it's not extending fillets to meet each other in a some spots. It constructs a bunch of the fillet surfaces but it's not able to trim the main body because of the missing pieces.

And yeah this method of building the whole thing first and then putting fillets on at the end seems more manageable than putting on the fillets before assembling.

- Michael