Doing some research on collective pitch/ variable pitch mechanisms. I will be limited in witch of the many methods there are that i can use. Material limitations as well as size and scale constraints aside I have 3ish mechanisms to to choose from. Since i dont want to get into through shaft linkages, im left with using heli style swash plates to liknk stationary control to rotational output.
From the swash plate there are 3 translation options i can use, bevel gear, cam/offset pin and worm gear. There are many variations of these types and many that use elements of some or all of these main types. As far as I can find no one has made a VPP from all 3D printed parts (bearings being the exception, cuz be honest, why re-invent the literal freaking wheel).
So im left with selecting the type of mechanism and then fighting the battle of function/complexity/reliability/weight. I have a couple of ideas but I also have the feeling that when mouse click hits the screen those will fall apart quickly. This will in all likely hood be a very Russian endeavor, with much trial and explodey error. Rapid prototyping for the win I guess.
Correction, just found this 3D printed VPP, only 7inch diameter though and no video of it on a plane in the air, so 3D aeroworks let me know if you got past the prototype phase.
Check out some of these awesome examples.