Cipher Helmet Lock

This is a Cipher Helmet Lock that can keep the helmet safe on a bicycle. I started to design this model in 2020. As a 3D print model, the function and reliability of this design have been proved in the past 4 years of 4 versions development and 2 years outdoors using tests. Now with the help of the “Maker's Supply“ project, I think it’s time to release it to the world.I appreciate Makerworld’s help. This design would have been difficult to implement without their assistance. There are 3 size