I started with the open source element CAD files found here:

https://github.com/wahoofitness/ELEMNT-Mount

And designed a mount for the round bar at the top of the Yamaha T7 wind screen. After printing, I placed some threaded inserts in the back of the back mount using my soldering iron (see pictures).

Creality

Ender 3

Yes

Yes

200

20

Material: PETG
Layer height: .012
Infill: 20%
Supports: yes
Build plate adhesion: raft
Print speed: 50 mm/s
Enable retraction: yes
Retraction distance: 5.0 mm