https://www.printables.com/model/869619-streamdeck-xl-8040-simrig-mount

The above link is to the printable streamdeck XL mount created by @CrosswindJone_135965

I decided to create ears/fins for the mount he created so that it could mount in a slant rack.

So if you choose to print these fins/ears, you will need his streamdeck mount. 

Also, no holes were added to this print. I had to drill holes through the ears/fins to secure everything together AND to mount to a rack. Which isn't too hard. 

You will want to get some 1' screws, lock washer and nut. Something not too big or not too small. M4-M6 maybe? Or you could also glue the pieces together, but can't imagine that working too well. 

I printed these with PETG, Stone White, Overture.

20-40% infill would work fine