a designer turns playing cards into a mechanical seesaw clock using a 3D-printed wheel

Casino’clock uses playing cards for its flip clock

Japanese designer Shinsaku Hiura has transformed his French costume game playing cards in a modern and minimalist style robotics flip clock called The casino clock using his 3d printed parts including the mechanism wheel. The toy– the clock is reminiscent of vintage time devices and looks like it could be added to the range of onlookers smart home technologybut it may take some getting used to the flapping sound and untraditional setting of card numbers.

The designer explains that one of the challenges of the project is to achieve a split-pane display and the manufacture of the flaps, which leads him to use playing cards that can be found in households for the flaps of his basic machines and to use as few parts. as possible to make his idea work. The minimalist design consists of three sensorless time displays, three 28BYJ-48 stepper motors with driver boards, an ESP32 microcontroller with WiFi, and 12 or more IO ports – the designer used M5stamp C3 – double-sided tape, tapping screws and zip ties to hold the parts together.

images courtesy of Shinsaku Hiura

Install a motor behind the spinning wheel

Shinsaku Hiura says the printing of the parts comes next. He produced a basic wheel with a click system to spin the cards. He would insert the playing cards one by one into their hinge or card holder which would then be attached and locked to the wheel. Before wedging the card into the hinge, he first tested how secure it would be during movement by locking the card holder to the 3D-printed rotor and giving it a push-and-pull test.

Then he placed the thumb-sized round motor behind the rotor and screwed it on. He mounted the now motorized spinning wheel on a set of pillars chained together with zip ties so they wouldn’t collapse. “If they’re loose, a drop of superglue from the outer hole will fix it”, writes the designer. Once satisfied, he continued inserting the playing cards into their hinges until he created an umbrella of cards attached to the rotor.

flip clock playing cards
a designer turns playing cards into a mechanical seesaw clock using a 3D-printed wheel

A microcontroller operates the flip clock

He had placed his double-sided tape on the bottom of each card and slid it into the hinge, so the card wouldn’t fall off during the rotation. After that, he installed an L-shaped hook on the upper part of the rotor, the element that would prevent his cards from diving without stopping.

He tested his creation using his microcontroller, the tool that turns the flip clock. He did this for all three units until one set was dedicated to the hour while the other two were for the minutes. According to the user, joker means zero while jacks is for 11, queens is for 12 and aces equals 1. Viewers can also flip the playing card clock by themselves while the designer uploads instructions and files. on his page.

flip clock playing cards
flip clock playing cards with microcontrollers

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