ELRS and o3 antenna mounts for LHCXRC Cloud 160

But didn't TPU parts come with the frame?

yes, and if those work for you, by all means, use them, the ones that were in my package had good quality.

I've made my own ELRS antenna mount, as the included immortal-t antenna mount assumes a tbs-sized immortal-t; mine is meant for the smaller ELRS ones. 

I've also included a vertical one that can be attached to one of the middle standoffs, so you can put a secondary ELRS antenna there.

As the GPS mount that came with the frame didn't really fit any of the GPS I have, and I don't even know if I want GPS on my 3.5"er, I've also made an o3 mount that covers the same height as their o3 + their GPS mount would cover.
 

Note:
Should I ever want GPS I'd probably design some mount that goes where they put the camera mount, with o3 I don't really plan an additional hd cam.

Printing: I printed mine in TPU, 0.08mm layer height (other options might work),  with support on the print bed.

3mf with my settings available

Shameless Plug: you can find a lot of my drone builds at https://devedge.eu/drones/my-drones