PERPETUAL CALENDAR WITH 4 CUBES

cults3d

Is a disconnected calendar to be updated by hand reasonable? Try mine, you won't be able to do without it ! #FIVERRCULTS It was while reading an article by Martin Gardner that I discovered the two cubes that allow to describe the 31 days of a month. The patent filed in 1957 by the Englishman John S. Singleton fell into the public domain in 1965. I propose you these two dice completed by a die for the days of the week and one for the months. *Notes*: -the "9" is obtained by reversing the "6" and Versailles High School. The project was designed for two-color printing but monochrome printing is faster and less filament intensive. -The numbers and letters are embossed on the sides so easily "colorable". For my part I tried a felt-tip whitener (bought at L-L) and "blanco" (pen "T-p-ex). Both work but the blanco smudges are easier to scrape off. The 4 cubes can be installed in a partitioned box that can be tilted with a "leg". The lids are proposed for 6 different arrangements