We wanted to create a versatile yet simple GoPro mount for the Hero 5 and Hero 6. We based this design off of the common "sleeve" design while adding a slot for a velcro battery strap at the top to further secure the camera. We also added some 3M Dual Lock to the bottom to reduce slipping.
Don't own a 3D printer? No problem! Buy this mount on eBay.
Print with at least three shells and rotate it so that it has a grain parallel to the camera to maximize strength. For best results, print in a semi-stiff TPU such as FoxSmart's TPU or SainSmart's TPU.