Fpv Rc Bird project

First Failure.
trying to assemble my mechanism in cad but for some reason its glitching and not fitting as intended. Some parts assembled in reverse and also shafts of wrong size.

Main structure of the wing designed in freecad assembly and connecter shafts left. now need to test whether proportions are accurate and will they work as intended.

Testing the opening and closing of my wing mechanism with legos

Guys i know this is stupid idea but still a idea. I am currently making Fpv rc bat inspired avian as it was my dream to always create something ambitious. Anyways the sketches arent great for other ppl to understand as i didnt keep it in my mind while making the rough sketches but this project is taking a hell lot of research just start. I appreciate u giving a look at it