Printing

Print it sideways to gain an extra level of strenght and as a bonus, it wont break of the printing beed.
You have to print it with suports everywere.

Attaching

I designed it in a way to mount it ease on your wall. 
Max screw sice: M6

Others 
 

I spraypainted it to get the glossy effect and to hidde the unclean Printing (printet one without support did not went well xD )