Track Link Calendar

** Mechanical perpetual calendars with several advantages.**

- It can display all four types of months from 28 to 31 days
- When a month is selected, the day of the week is automatically displayed (from March of the year to February of the following year)
- Adequate width
- Fully 3D printable, easy snap-fit chain assembly

Assembly process is shown in the video.

** note : Correct order of 28 panels is shown in the picture in the following description. The order shown in the video is wrong (that can not show some months properly). **

You can print the all parts with 180mm x 180mm printers. (some parts are necessary to rotate 45 degrees on the table).