Blendsrf not working.. why?

i am a beginner trying to follow this rhino tutorial (link below) i want to know why blendsrf doesnt work at all when connecting the two shapes

h.3dm (286.3 KB)

really confused if someone could help that would be greattt

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Hi @Gabrielle_Tan
The bottom cylinders are sub-d’s. For BlendSrf to work, they need to be NURBS, similar to the top surface. Use ToNurbs on cylinders or just replace them with ordinary, open cylinders. In the V8 WIP there’s a test-command to match NURBS and Sub-D’s.

HTH, Jakob

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