![]() ![]() Hidden switch on the outside of the bookcase.A reliable automatic mechanism to open and close both doors.The Arduino Uno control board and PA-14 actuators were selected based on the following functional design requirements: The power source for the four linear actuator motors was a RobotPower Multimoto high power quad motor shield. He never has to worry about closing the bookcase door. A motion sensor automatically closes the bookcase doors after 2 hours of inactivity.įor the inputs, motor control, and outputs, Bruce employed the services of only a single Arduino Uno. Pictured left to right: power supply, a cluster of wires, arduino control board, motion sensor, open/close switch.īruce added another special feature to his bookcase doors. The PA-14 can supply both adequate force and speed to move the bookcase. To accomplish this, he used the Arduino open-source electronics prototyping platform to control them. To handle the weight of a full bookcase, Bruce used four Progressive Automation PA-14 linear actuators per door carefully triggered to work together. Two linear actuators connected to an arduino control system. His bookcase doors are real wooden bookcases full of really heavy books. He didn’t want a fake bookcase with hollow books and other lightweight objects. Bruce’s bookcase is noteworthy because it’s real. Building A Secret Bookcase Doorĭo you have a closet or room that you want to conceal with a moveable bookcase? Maybe hide your office, valuables or guns from an intruder or guests? Maybe this DIY secret bookcase door project will inspire you.īruce McArdle designed and built the secret bookcase doors featured below using linear actuators. For example, our cars’ cruise control, the brakes and the driver’s seat adjustment mechanism are all controlled by actuators. Almost all devices that involve motion are integrated with a linear actuator. We are surrounded by linear actuators in our everyday lives. They can be triggered in a variety of ways ranging from a light switch to a motion sensor. Actuators work by transferring energy into motion. In case you’ve never heard of them before, an actuator is a mechanism that initiates movement. I’m a huge fan of actuators and this is my second article on MethodShop praising their applications. You just need the secret ingredients: linear actuators and an Arduino. It’s unclear what will happen in the current space, but it’s unlikely that Circa 33 will ever reopen.Building a door concealing a hidden passage isn’t as complicated as it might sound. Throughout the pandemic, the patio remained as a popular spot, though overall dining numbers, like most everywhere, were down. That concept closed in November during the brief shutdown of all on premise dining, though elements of it remained when Circa 33 re-opened shortly after. In summer of 2020, it temporarily converted to Gin Alley, pivoting towards a menu of Chinese-American dishes and a gin-heavy cocktail list. Prior to the pandemic, the bar would often host Prohibition-themed dance parties and other themed events.īesides the decked-out vintage interior, diners also visited for the spacious alleyway and back patio dining areas. Cocktails veered towards the classics, but often less common ones: Singapore slings, Vespers, pisco sours, and brandy crustas adorned the menu, which also offered burgers, salads, pasta dishes, and other comfort foods. The speakeasy-themed Circa 33 opened in the fall of 2011 and quickly began to draw regular crowds to its elegant dining room, with its high-backed vintage booths, gorgeous copper bar, and towering glass backbar complete with a sliding ladder. A representative from IRC told Eater that Circa 33’s employees have all been offered positions at the new pizza place and at Paddy’s Bar and Grill, the restaurant group’s downtown Irish pub. ![]() Its first permanent location will open later this year in the Hotel Lucia, in the space formerly home to Vitaly Paley’s the Crown. The lease on the bar’s space was up at the end of September, and rather than renew, the owners of Independent Restaurant Concepts - the restaurant group behind Circa 33 - chose to focus their time and energy on Pacific Crust Pizza Company, its new pizza brand. ![]() On Sunday, September 26, the restaurant quietly hosted its final service with no fanfare or announcements. For years, it served as an event space and party room there, and at the rest of the bar, diners could find pre-Prohibition cocktails and contemporary dining menus of pub staples. The code is 1933, the titular year that Prohibition ended - behind the now unlocked door is a semi-hidden dining room, with a bar window overlooking the back patio. Flip specific a book in the bookcase in the back hallway of this speakeasy-themed bar on Belmont to reveal a keypad. Circa 33 had one of the worst-kept secrets in Portland. ![]()
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