I needed more room to clear the fan when closing and opening the stand.
After some attempts, I decide to make if more stable and used a carbon fiber rod (10mm) and M5 screws with self tapping inserts for the foot.
EDIT: small cosmetic upgrade on version 2,
Autor tento model zremixoval.
Removed the stand foot, added holes for a round rod, extended the arms length in 5 mm.