Another raspberry mount with power-button

I decided to create my own Raspberry holder for the K8400 printer, because i want a easy access to hdmi-, usb-, network-, etc. ports. Also the micro usb can easily changed from the front of the printer. Mounting the Pi overhead does not fit these requirements for me.
A nice feature is the Start/ Shutdown button with status LED.

i hope the fan behind the raspberry for the mainboard keeps the pi maybe a bit cooler (temperature is not a problem but cooler is in any case better.