At last after a lot of work and changes the final Sofia is here (also known as the Titti prototype)

s a nylon ring  protects the aluminum top part of the body.

Also, I developed a new tip shape, i think this will be the bearing tip shape for the next tops

And now the most exciting solution of the year, the one way bearing tip

this is only a test configuration but shows all, the final tip has the new bearing shape and there are options for the outer bearing type.