Couldnt find a dedicated mount to use my Garmin RV 775 MT-S GPS on my bike so knocked this one up in Fusion. Printed in ABS-CF and used this RAM ball adaptor https://makerworld.com/en/models/450588?from=search
Used some M4 x 12mm Stainless Bolts and M4 Stainless Nyloc Nuts to mount the Ball Adaptor.