***Too tight ! Wait for update before print.
In the mean time I just found this alternative:
REmix from the original Centriphone for the One Plus One
Also here to find:
I'll print it later on and give feedback here:
The design is based on a OPO cover (don't where I got it anymore) which work probably fine due to the flexibilty of it.
But in this remix, all is rigidified, so this a too tight fit for the phone. I barely took it off the design with out breaking it.
I'll have to redesign it, r if you really want to print it, add a few % scale maybe....
The rest of the structure look nice.
For the moment I will use a bit of dremel here and there and give it a try like this.