GH Python : Friction - syntax error on Normal Vector

Dear All,

I have been following a tutorial from Jake Hebbert’s channel on Youtube and trying to make a simulation of a bouncing ball with friction and gravity constraint but the animation (simulation) was moving very slow and I have a syntax error to define “normal”. I hope anyone can help me. Thank yousimple gravity and fraction.gh|attachment (15.3 KB)

Hi - please don’t double-post…


-wim