How to make a translation vector based on a line?

test.3dm (164.8 KB)

I suppose this is a good summary of kind of what I want to do. And I followed a reply by HS_Kim which seemed to work: Translation of object to set of vectors - #2 by HS_Kim

However, this idea did not work for me T _ T

I think it’s what Volker mentioned with regards to the 3 point thing so, I’ll look into that! Thank you.