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Improved Perpetual Calendar (to the year 2124)
This is a better version of my design. I have redesigned mine so that it is one sided (doesn't have to be flipped over). I would like to laser cut it on wood. This design would be very nice laser cut also. Good job!
I've made one using a descendent of your design. My version removed the outer masks and made the viewports output only.http://www.instructables.com/id/Perpetual-Calendar-200-Years/
Thank you for this, it is really useful!
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