Robust AMS Riser - printable without support

Describtion:
There are a lot of risers for the Bambu Lab AMS System on thingiverse and I looked at all of them. Most of them have the same issue: They are large, beefy and need supports to be printed - that means lots of filament are necessary.

I wanted a riser, that uses less than one spool of filament, is very robust, lets me open the top cover so that it stays open for ventilation, has a sufficent opening at the top to work on the printhead and of course has enough room for the AMS.
So I designed my own AMS riser. It is so robust that I can stand on it. With my print settings (see below) it uses 840gr filament and can be printed in about 24 hours. All my settings and the part arrangement on five plates is included in the 3MF file. A step file for your own modifications or remixes can also be downloaded.

Dimensions:
409 x 369 x 87 mm
840 gr

Material:
I recommend a sturdy filament like PLA, PLA+ or PLA-CF. Maybe PETG will work but the stationary tensile strength of PLA