You have to just trial and error or find something straight to align it. I find connecting very close or as far away as possible to be the best method.
Hyrule Engineering
Inspired by /r/hyruleengineering, the community I loved most in Reddit
It was a pain, but that video guide above worked very nicely.
I had to try 4 times to get it right but using this guide I got one that has a very very slight left lean. So slight I feel that I am as close as I will ever get. Thanks for the guide.
Maybe I just got lucky… I tried to line up the camera to center everything, visually found the center of the fan and lined it up with the vertical line of the control stick. Some YT videos recommend putting the control stick flat on a stake too and setting up like that. Fans should be at 45 degree angles relative to the control stick.
Wish we could share community builds!!
I got one working with the video guide above. Would love to be able to share.