Pololu micro metal gearmotor bracket mount

While I was building my Line-Follower robot I had to find a solution to mount my gearmotors.
Genuine Pololu mounts were quite expensive so I started looking for a 3D printable design.
Designs I found were nice but too fragile to use.
They were bending and breaking while I was tightening the screws.
Thats why I designen my own pair.
Every wall is 3mm thick with long and strong mounting holes.
Holes are designed to fit M3 screws as they are cheaper and easier to find than M2.5s.