Disney clock - Donald Duck with mechanism

thingiverse

I drew this clock starting from zero. One rule I set for myself is that the mechanism remains visible. I suggest to print one color by gear, it is much prettier. The clock is programmed to advance the old fashioned way one minute at a time. For the minute hand, I made 2 models but I prefer the model in the shape of a Disney key, this minute hand has given better results, but I leave you both. The code file is supplied with the STLs. This version does not use the RDC 12C module. When the gears are printed accurately, there is no lead or lag in time. 2022, Jan 29th : Update for smaller printers, use RoundClockA, B, C, D and E. Enjoy! Unprinted parts: - 1 Arduino Nano - 5 Bearings 8 x 12 x 3.5 - 4 M2.5 x 8 mm screws - 2 push button 6 mm x 6 mm - 2 resistors 10 kohm - Step motor 28BYJ-48 with contol module - Small FR4 one side 95 mm x 52 mm - 5V adapter to connect the Arduino - glue - Tiny RTC 12C module (optional)