It has been a pleasure to find this thing already designed, it perfectly fits my Mijia and the design prints without supports very well.
I have combined it with Modular Mounting System and made some very little mods to better fit this system, 102% hole size for M5 screw and 0.1mm thinner mounting "plates"
Now I can use my Mijia 4K to make timelapses of 3d prints or as FPV inside my RCs!
Gracias David y mucha suerte con esto de "comelse el intenné"!!!
Hobbyking low-cost ~11€/Kg PLA
I used a little extra negative horizontal expansion (-0.04 instead of -0.02) to be sure the lens cup would fit.