PSB M4U Headband - stronger remix

Many thanks to @Yuris for the initial design with all the detail
I tried printing the design from @Yuris and in Nylon it was too soft, and my next styonger material PETG was too brittle and broke in the samee place.
I think 3D printed versions of original designs need to be tweaked for 3D printing, because as much as we like to think 3D FDM printing is stronmg enough, it will never match plastic thats injection molded under 40 tons pressure !

So I thickened the back of the strap without any changes to the inside dimensions.

Sept-2020
I included my method of doing the supports to minimise cleanup issues (especially important if doing PETG)