Updated Sept10 with a bit more clearance for the lens.
For the Hero3.
Someone asked me to print another case from on here but it was flimsy so I just started over.
I'll probably make variants as the need arises and post here.
print it bottom down, add helper discs if needed
I aligned my support to the model (or model to the support) so that it was easier to remove. So the lines of support should go along the length of the model.