How do I make a 3D Axis indicator as a "UI" element?

Hi, For my project I need to create an axis indicator, very similar to the one in the UE4 editor viewport (see picture) which turns based on the rotation of the camera but is at a fixed position on the screen, like an HUD/UI element. I tried implementing this using some 3D actors and making it follow the camera around but it looks very janky.

axis indicator

How Should i go about making such a 3D, rotating HUD element?

I’m currently trying to do the same exact thing. I’ll let you know if I come up with a solution. I would imagine somewhere in the code exists the axis indicator.