AMS Lite Spool Fall Preventer Lock

I know there are lots of AMS Lite reel holders, but I wanted one that didn't have to be removed in order to hold the spool/reel on to the holder. So, I designed this… It goes on to the AMS Lite spool holder and once installed, doesn't have to be removed to change the filament spool. Spin the handle to the left and the fins collapse allowing for removal. Spin the handle to the right and the fins extend, preventing a large diameter spool from falling of the holder. Is it big? sure. Is it over engineered? maybe. But I like it. It kinda looks mean on the machine! I have included lots of pictures on how to assemble. It does require two 8mm id x 12mm od bearings. (I tried it without the bearings, and it occasionally binds.) One goes in the main body at the bottom where the screw gear rotates. The other goes in the cap that gets threaded on the main body to hold the screw gear in place. Once they are installed, thread the screw gear into the main body. The one trick is having the fins