I added STEP & F3D files to my Thingiverse post. I plan to mod the GPS mount to retain it better, design a vertical rear crossfire antenna mount, design a horizontal front crossfire antenna mount.

Regarding Siccario thermal management. I was amazed how much heat the heatsink and frame absorbed after a 5 minute aggressive flight. I couldn't fit 2 60A ESCs over each 30mm mount position so I stacked them and used 3mm thermal pads on the bottom and between ESCs. The thermal conductivity was impressive. I have not been able to measure heat on the ESCs yet; something I believe is needed. It may be possible to record ESC temps in a Black Box Log.

The Siccario or any quad with protected electronics (enclosed) needs effective cooling designs. On the Siccario, I believe each ESC should have its own heatsink. This would require modding the bottom plate to increase ESC separation. Currently most ESCs do not fit each mount position simultaneously. Alternatively... the the top plate could be modded with heatsink holes and sandwiching both the DJI AU and the ESC stack. OR a combination of all three.

Thank you so much for that, appreciate it a lot. I think, as my Siccario will be more of a "collector's item" and for fun, I will probably opt for a more open design then, as the implications seem quite intense.

Thanks... I am happy how the motor wires routed. The braided sleeve with motor wires pass thru the TPU with a snugfit. Check out the STLs https://www.thingiverse.com/thing:5339929