Fillet from asymetrical shape to 8mm rad then to another shape

There is no fillet from a shape to a fillet rad then to a shape again, so what would best approach be here ?

I plan on creating profiles and using two rails using the 8mm fillet as guidance at the narrow part. Is this best way ?

Fillet from rad to an exact shape.3dm (425.5 KB)



It’s really beyond ridiculous to expect to do something as advanced as this. When you are incapable of creating smooth surfaces that will join together in the first place. It’s absolutely pointless. You will have spent an enormous amount of time trying to achieve a nice result and you will still have total garbage. Please learn the basics first.

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You may not have read what my hurdles are.

  1. I have to get this job done…urgently before the PC dies…and to meet client workflow…then
  2. I have to rebuild my PC
    then 3) I will be going back through Level 1 and 3 and other tutorials. and really look fwd to doing so.

However the client requirement is not for something super nice, but just enough to allow milling from foam, finesse is added with sanding blocks afterwards and I am told not to expend time on finesse not required. So you wont see what I can do if I really go to town.

If I dont get this knocked out to a basic level suitable for milling from, the rest of those stages can’t happen. and I have 1 day to finish this item.

I went ahead and created rails and profiles and I see my rails are as per your jpg, slight difference underneath where I ended tangent 90 deg to your tan direction. What I got is absolutely adequate and matches the jpg. To join my sweeps into the existing surface I then trimmed out the surfaces to the rails and then joined. I tried for, though job doesnt need it, making perfect the transition from my sweep into the existing surfaces but here is where I need to work through the basics and know what command is best. I opted for MatchSrf but it said edges too far apart despite the fact that the rail is common to both edges so distance was 0. I had that before, red herring, its because the edge was trimmed, nothing to do with gap size. I am keen though to find out just how two trimmed edges can be made to flow together and look perfic !.. like a fillet command flows a fillet across a surface and you cant see the joint.

If you wish to share the steps you took here I would benefit.

I hate being in a position where I need to do the job before training up on whats needed, but thats it, catch22. Any help just to get to that end to enable me to go train is appreciated. The fact that I ended up with something matching the jpg shows I am not a millions miles from the right thinking route.