{"id":68114,"date":"2019-12-12T15:16:04","date_gmt":"2019-12-12T15:16:04","guid":{"rendered":"https:\/\/\/origami-unfolds-as-force-feedback-haptics\/"},"modified":"2019-12-12T15:16:04","modified_gmt":"2019-12-12T15:16:04","slug":"origami-unfolds-as-force-feedback-haptics","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/en\/origami-unfolds-as-force-feedback-haptics\/","title":{"rendered":"Origami unfolds as force feedback haptics"},"content":{"rendered":"

Still under development to be commercialized by spin-off startup Foldaway Haptics, the so-called Foldaway device leverages well established planar manufacturing techniques such as lamination and printed-circuit microelectro-mechanical systems (PC-MEMS) to offer unobtrusive and cost-effective force feedback haptics. Two device implementations are described in the<\/p>\n

\"\"
The delta Foldaway haptics allows joystick manipulation
\nwith 3 degrees of freedom.<\/figcaption><\/figure>\n

Nature Machine Intelligence journal in a paper titled \u201cA portable three-degrees-of-freedom force feedback origami robot for human\u2013robot interactions\u201d, a delta version and a push-button version. Both could become low-cost PC peripherals, akin to a mouse. Integrated into the touch-pad area of a laptop, the Foldaway buttons could enable users to feel the textures or the stiffness of objects as seen on screen or in virtual reality environments, accurately rendering touch sensations during interactions with virtual objects.<\/p>\n

For the push-button version, three individual micro-motors are linked via bevelled gears to a three-legged flat structure. Each actuator imparts movements, forces and vibrations along a distinct direction slotted into the base, folding the legs along a pre-defined pattern of joints to take a 3D, button-like shape. The upper tip of this moving origami mechanism is the actual user interface, transmitting sensations and force feedback to the user\u2019s finger to reproduce the physical interaction with objects or forms. Hall effect sensors keep track of the tip\u2019s movements so the whole system can be controlled via a retro-feedback loop.<\/p>\n

\"\"
3D model of the delta mechanism (left). Each leg is connected to an axis of rotation driven by a direct-current motor through bevel gears. A Hall effect sensor measures the orientation of a diametrically magnetized magnet connected to the axis of rotation. The hand-held versions of the push-button (right) is built around the same sensors and actuators but sports a different spatial arrangement.<\/figcaption><\/figure>\n
\n
\"\"
The hand-held version of the push-button used to provide
\nhaptic force feedback in a virtual reality environment.<\/figcaption><\/figure>\n

The delta version is aimed at larger movements, to be used like a joystick where users actually grab the tip and interact with it in all directions. With a footprint under 100x100mm and just about 30mm thick (to accommodate the DC micro-motors), the devices were successfully tested to navigate an atlas of the human anatomy, giving users different sensations upon passing on various organs based on their known stiffness (lungs, bones, heartbeat etc..). As a virtual reality joystick, the Foldaway gave users the sensation of grasping virtual objects and perceiving their stiffness, modulating the force generated when the interface was pressed.<\/p>\n

Another use case described in the paper is a control interface for drones, increasing the pilot\u2019s awareness on drone\u2019s behaviour and of the effects of wind or other environmental factors.<\/p>\n

EPFL \u2013 www.epfl.ch<\/a><\/p>\n

NCCR Robotics \u2013 www.nccr-robotics.ch<\/a><\/p>\n

Foldaway Haptics – www.foldaway-haptics.com<\/a><\/p>\n

Related articles<\/strong>:<\/p>\n

UltraHaptics promises airborne tactile interfaces<\/a><\/p>\n

Augmented reality gets physical with haptics<\/a><\/p>\n

Close encounter of the haptic type<\/a><\/p>\n

Perfecting virtual touch<\/a><\/p>\n

Feeling augmented<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Researchers from EPFL\u2019s NCCR Robotics lab have designed a novel form of force feedback haptics based on a folding origami structure which can be flattened into a highly wearable card when not in use. <\/p>\n","protected":false},"author":22,"featured_media":68115,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[26],"tags":[62,67,75],"domains":[39],"ppma_author":[1149],"class_list":["post-68114","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology-news","tag-displays-interfaces","tag-flexibleelectronics","tag-sensing-conditioning","domains-eenews-europe"],"acf":[],"yoast_head":"Origami unfolds as force feedback haptics ...<\/title>\n<meta name=\"description\" content=\"Researchers from EPFL\u2019s NCCR Robotics lab have designed a novel form of force feedback haptics based on a folding origami structure which can be 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