Caddx Vista mount for 21mm spacing IFlight Nazgul5 v2, XL5, with HappyModel EP1 antenna holder

Standoff spacing is 21mm. Standoff height is 28mm if your frame is not the nazgul and you want to match it. 

This mount was meant to reduce vibrations caused by the antenna, so I printed mine with PETG. It is very stiff and doesn't flex, which was the goal. Although I suppose you could try printing with TPU as well. I can't say if it's hold as securely, it is a pretty tight fit, but TPU can flex a lot.  

The slots for zipties are 3.1mm x 1.5mm, meant for 2.5 x 100mm zipties.

The overhang angle is 40 degrees, except for the tip which widens to hold the antenna, I added a small support in the slicer to hold this part, as you can see in the last photo.