Beyerdynamic DT287 / DT297 Popfilter (Windshield) Fixation

I had the problem that the popfilter of my DT297 is easily falling off.
A zip tie was my first fix for that issue but was not optimal.

The attached files are:

• OpenSCAD rendering script to adjust the size
• Rendered STL file for a working version printed with Prusa i3 MK3S
• 3mf Slic3r file for my working version

Have fun with your headset!