i'm very noob to rhino
i have problem with fillet tool its make the object have weird reflection
i joined the surface together and the problem didn't sloved
Hi Yasser- yep, fillets are tangent (G1) to the input surfaces- try BlendEdge, which makes curvature continuous (G2) surfaces. Check both results with Zebra as well- make sure to hit 'Adjust Mesh' in the zebra control to set Minimum initial grid quads very high- maybe 5000.