Click pen mechanism

Description

###Cutaway view of a click pen mechanism This model shows the three main mechanical parts of a retractable pen: 1. *Push button* (with ratchet) 2. *Follower* (spring-loaded by means of the ink cartridge) 3. *Cam* The complete model of [the pen can be visualized here](https://skfb.ly/SRCn). The animated mechanism can be seen in this [cutaway view](https://skfb.ly/Tq9N) of a retractable pen.   *Close-up views of the click pen mechanism (PBR renderings performed with Keyshot 6.1).*