Quadlock - Stem for Bikemount

I tried my first project - a bikemount for Quadlock systems.
Since the original is pricey af I measured and oriented my design rather much on the original.
I made a few customizations in order to skip the blue part (which is next to impossible to scan/measure) from the original, and it works pretty well without the "locking" mechanism. The stem is a little shorter than the original, will post another photo of it in use.
the Measurement for the stem to mount it on is 30 mm