flexi connector

When we model, we often need to build rotatable structures, such as car wheels, movable joints, and so on. For beginners in 3D printing, designing a perfectly coordinated rotating connection structure requires multiple rounds of debugging, and each time it needs to be re modeled, which is a very painful process.Using this model as a Boolean tool can significantly reduce modeling time and can be reused without worrying about tolerance fit issues. This file contains two objects, one is a plug used