{"id":143570,"key":"Hands-Free_Door_Opener","title":"Hands-Free Door Opener","latest":{"id":1268203,"timestamp":"2026-09-11T04:59:33Z"},"content_model":"wikitext","license":{"url":"https://www.appropedia.org/Appropedia:Copyrights","title":"CC-BY-SA-4.0"},"source":"[[File:GN023 CAD Image.jpg|thumb|CAD image of the Hands-Free Door Opener]]\n\n{{Project data\n| type = COVID-19 initiatives\n| authors = Walker Smith (Kijenzi)\n| location = Kenya\n| status = Deployed\n| verified-by = Field Ready\n| years = 2018\n| made = Yes\n| replicated = Yes\n| tools = 3D Printer\n| cost = USD2.37\n}}The '''Hands-Free Door Opener''' is an elbow-operated attachment that fits onto a door handle, allowing the door to be opened using the forearm instead of the hand. It fits any handle dimension and was developed during the COVID-19 pandemic to reduce hand contact with frequently touched surfaces such as door knobs, supporting infection control in shared spaces.\n\nThe opener is 3D printed and can be produced in PLA, ABS, PET, or PETG filament. Total production time is approximately 1 hour 41 minutes, plus roughly 2 minutes to assemble and 1 minute to disassemble.\n\n{| class=\"wikitable\"\n! colspan=\"2\" |More Product Information\n|-\n| Author Code\n| GN023\n|-\n| Documentation License\n| CC-BY-4.0\n|-\n| Open Hardware License\n| CERN\n|-\n| Start Date (Development)\n| March 30, 2020\n|-\n| End Date (Development)\n| April 6, 2020\n|-\n| Designer\n| Walker Smith (Kijenzi)\n|-\n| Maker\n| Kijenzi Kenya Ltd\n|-\n| Main Materials\n| PET, ABS OR PETG Filament\n|}\n\n'''Attribution:''' This design was developed by Walker Smith of Kijenzi, and produced by Kijenzi Kenya Ltd. (Kisumu, Kenya), between March 30 and April 6, 2020, as part of the \"Do Less Harm, Use Your Arm\" campaign, supported by Materialise.\n\n== Readiness Levels ==\n\n''Levels are identified based on this reference:'' [[Field Ready Readiness Levels]]\n\n{| class=\"wikitable\"\n! Readiness Criteria\n! Level\n|-\n| Field Readiness\n| 4\n|-\n| Maker Readiness\n| 4\n|-\n| User Readiness\n| 4\n|-\n| Tech Readiness\n| 5\n|-\n| Risk Readiness\n| 5\n|}\n\n== Manuals ==\n\n[[File:GN023 Use Image.jpg|thumb|Hands-Free Door Opener used]]\n\n{{Device data|making-instructions=https://www.appropedia.org/File:GN023_Maker_Manual.zip|quality-instructions=https://www.appropedia.org/File:GN023_FAI.zip|operating-instructions=https://www.appropedia.org/File:GN023_User_Manual.zip|design-files=https://www.appropedia.org/File:GN023_Eng_Dwg.zip|risk-assessment=https://www.appropedia.org/File:GN023_Risk_Assessment.zip\nhttps://www.appropedia.org/File:GN023_Test_Plan.zip|schematics=https://www.appropedia.org/File:GN023_CAD.zip|bom=https://www.appropedia.org/File:GN023_BOM.zip}}'''Installation'''\n\nThe door opener is placed on top of the door handle to be fitted, then secured with three cable (zip) ties: two along the long side and one on the short side, to ensure it stays firmly attached. An instructional sticker is then placed on the door above the door knob to guide users.\n\n'''Use'''\n\nThe forearm is placed into the door opener as shown, then pushed down to disengage the door lock. The door is then pulled open without the hand ever touching the door or handle.\n\n'''Removal'''\n\nTo remove, all cable ties are cut and the opener lifted off the handle.\n\n'''Cleaning'''\n\nThe opener can be cleaned with soap and water (hot water should not be used) or wiped down with a bleach solution.{{Attention\n| title = About the manuals\n| text = Field Ready develops manuals to support both the fabrication and safe use of its products. A maker manual provides step-by-step instructions for replicating the design, including materials, tools, and assembly guidance, so that makers in different locations can build the product accurately and consistently. A user manual, where applicable, explains how to properly set up, use, and maintain the product once it is built, helping ensure it performs safely and as intended for the end user. Together, these manuals make the design accessible to both fabricators and the people who ultimately rely on the product.\n}}{{Page data\n| part-of = Global Field Ready Portfolio\n| keywords = Covid-19, Pandemic, Door Knobs\n| sdg = SDG06 Clean water and sanitation\n| authors = Charles Vincent Barrete\n| organizations = Field Ready\n| license = CC-BY-SA-4.0\n}}"}