# 083 : Wave Bench | Rhino Grasshopper Tutorial

[@saijadhav4613]

Updated tutorial on rhino 8 pls

[@juanjofernandez9174]

Very good tutorial, yes sir. Thank you

[@chaabanimanel9480]

i am a rhino 8 user. at the expression component it shows an error "variable x has an invalid name"

[@RhinoGrasshopper]

You need to change the variable names to just x. ( variable x --> x )

[@mhammedmojahid1540]

tank you work very good

[@lygiaolhosdemel]

hi!! when i connect fillet with boundary surfaces i receive this message: "1. Planar surface routine returned no results". So i can't make the thickess of the lines. can someone help?

[@mimi_imfat]

the vector part won't work. it says "data conversion failed from surface to vector" how can i fix this?

[@RhinoGrasshopper]

(Vector at 10:00 in the video) You're probably a user of Rhino 8. In that case, try using the < isPlanar > component.

[@mimi_imfat]

@@RhinoGrasshopper Thank you so much, this was very helpful

[@cuivincent1508]

You can also try using the < Surface Extrusion > component, which can control the thickness. I have already tried it.

[@mandlgo]

I can't fild flip plane ㅜㅜ