improved DC Fan holder for Thing-O-Matic Z stepper

I like the DC Fan holder.
Transporting my Thing-O-Matic often I choose a very wide and long fan instead,
so it would never break of. (40x50 instead of 40x40 and 32mm thick with 2 fans and 2 motors)
Mine also uses a very strange bolt-size of M3.5 .
This required a redesign.
I am using 2 flat pieces on either end of the fan
instead of housing this large thing inside the DC fan holder.
My clamp-arm is not parallel to the wood but starting at 4mm and ending at 5.
This way it will clamp more