Dial Gauge QuickFix for Ultimaker

Using a Dial Gauge with 8mm diameter and mount this on the printhead low-end.
I was looking for fixing my Dial Gauge onto the printhead of my Ultimaker to level my bed - there are some thing's around here as the "Ultimaker Generic HeadMount" and then design a mounting part for my Dial Gauge.
The existing things for me where just to much to print - so I quickly created (in SolidEdge) this QuickFix for my DialGauge which has a diameter of 8mm (when you print this check for right fit -