Mechanical perpetual calendar puzzle – helps develop hands-on skills and dimensional thinking, and features a detailed design with a steampunk mechanism.
- Mechanical wooden Perpetual Calendar puzzle
- Made from high-quality, laser-cut plywood
- No scissors, tape or glue required
- Easy to follow instructions
Detailed in design and a captivating challenge to build, the DIY Mechanical Wooden Puzzle (Perpetual Calendar) will have you completely absorbed as you put together a breathtaking replica of an old school Perpetual Calendar.
Adjust the disk and set your time zone. It can indicate year, month, day and week from 2019 to 2040.
Easy to follow instructions
Simply follow the step-by-step instructions to put all the interlocking pieces together.
HOW DOES THE CALENDAR TELL DATE?
Rotate the year gear to select a year. Keep the year gear fixed, and rotate the
month gear to select a month. Then the Calendar plate will show the Calendar of
the month you choose.