Corobiner

thingiverse

For minimizing the risk of infection with Corona/Covid-19 or any other illness, opening doors without touching is a good idea. Various door opener tools are already available. My thoughts: Using an elbow to latch/handle and push open doors is quick and easy, but pulling doors can be a problem. Since this pandemic will likely continue for a while, I wanted a small tool that's always with me when I leave the house. If not, it might get lost. My goal was to make one as compact as possible so I can carry it on my keyring at all times. It's also beneficial to save materials and printing time - this way you can print more and share them with others. Updated version "Corobiner9-7": When testing, I didn't like the hook slipping off handles, so I optimized its shape to easily add common rubber bands. This makes it much more convenient. I also added a case called "Corobiner9-7 hull" for hiding the hook after use for better hygiene. A rubber band will keep it in place. Simply use your keyring as an axle. If it's too wide, you can scale it down using your slicing software. In file "Corobiner9-7_4Stck," the pieces are slightly touching to stabilize themselves on the build plate but can be twisted apart after printing. The files are modeled for printing even with a wide nozzle (0.8mm is faster). You can use the front of the hook to push buttons in public spaces. Print and share! I welcome your feedback.