Mini Angle for Woodworkers (updated)

I designed this small angle, on the one hand, to be able to check right angles in a cramped environment and, on the other hand, to be able to draw lines parallel to edges at intervals that are typical for wooden panels etc. Additionally there is a 6 cm measuring scale.

I recommend printing the angle with medium-light colored filament to ensure good visibility of the scale. I used the silver PLA that came along with my Prusa i3 MK3S+. 
I printed this angle with a layer height of 0.2 mm and 4 perimeters. If this case, there is no infill. 

Preferred print alignment is with the scale on the heat bed. If the angle is printed with the scale upwards (my first thought), it will break easily at the layer boundaries. 

The printing time is about 50 minutes.

To avoid any brim next to the scale, I added three small self defined brim areas to keep the angle in place while printing. They can just be broken away. 

Update

I additionally added a breakaway support in the inner triangle to avoid the dirty part caused by the fluttering end while printing (still shown in the last picture). Thanks to Dan Rogers (see Makes) for the hint.

Update 2

Still unsatisfied with the quality of the climbing strut, I made a few more attempts to make the support as efficient as possible and still easy to remove. In the end, the currently published draft was my best result.

If anyone here has a better idea, I would be happy to find one or the other remix. To make this easy to do, I've now included my Fusion 360 design file.

By the way, I have now printed the part on a test basis also with PETG and ASA:
ASA: Easier to break out the support, but rather unsightly in the area of the guide holes and the hexagonal holes. Breaks more easily when bent than PLA.
PETG: Also easier to break out the support than PLA. A little bit of stringing in the hexagonal holes, good resistance to bending. Winner of this little contest.

Comments, Makes and Remixes welcome!