Behringer Wing Fader

I´ve searched for a Behirnger Wing sparepart fader knob knob.
I didn´t find one that i could buy in an afordabe price.
So i grabbed one ar grabcad and modified it. The main probelm the slot for the fader motor isn´t more or less "standard"

It fit perfekt and with an bambu you can print the index line in white.