I wanted to switch from the Berd-Air part cooling to the Tusk part cooling setup to have a little more quiet when printing. I needed a mount for the tusk that put it at the right location when using a Bondtech BMG Extruder, a Precision Piezo Orion Module, and an E3D V6 Volcano hotend.
The mount uses the two existing side screws locations from the BMG however you will need
to replace the current 35mm with 45mm screws.
I also use a heated nut insert to mount the Tusk to the BMG Mount.
I haven't tested this yet other than assembling it since I'm still building my HEVO but it should work with no issues as it positions the nozzles where needed and is adjustable.
You may need to clean up the holes a bit if you have too much squish with your printer.
Use a brass nut insert inserted from the back (BMG) side. I used these from McMaster Carr: https://www.mcmaster.com/94180a331
Designed in OnShape using the BMG mounting bracket as a basis then modified to hold the Tusk Fan Mount.