This allows the user of the ear guard to adjust the mask’s elastic strap to cover their face tightly but without putting pressure on their ears.The young boy, who is keeping his Scout’s oath of Duty to Others, has produced more than 1,700 ear guards since March.Callander then set about printing the prototype—a strap that goes around the back of the head to which one could attach the elastic of the mask. "Seek out your local health care providers, ask if this would help them, and get your printers going!" Callander wrote on his Thingiverse post.Quinn Callander has put the design of his plastic around-the-head strap on the open-source 3D printing community Thingiverse The 3D printed ‘ear guard’ that Quin Callander produced has several grooves on which the elastic strap of a mask can be looped.When Quinn Callander heard that doctors, nurses and paramedics had severe ear pain and soreness from wearing masks over long shifts, he thought up an idea to help ease the pressure and prevent chafing behind the ears.The ear guard is made of a kind of plastic commonly used in 3D printing called polylactic acid, which is relatively cheap, Fast Company reported. The 3D printed ‘ear guard’ has several grooves on which the elastic strap of a mask can be looped.He worked out several design for a plastic strap that he could produce using his 3D printer, and finally settled on a workable model. (Photo | Facebook - Heather Roney) Chennai: A 12-year-old boy scout in Vancouver, Canada has developed a simple but clever solution to the problem of ear straps of masks causing pain to healthcare workers who have to wear them all day.Following his lead, a volunteer group that Callander works with has also plastic fork Manufacturers printed 5,000 ear guards and given it out to hospital workers. Demand for his handy accessory soared since he distributed his initial batch to hospitals in Vancouver.

This allows the user of the ear guard to adjust the mask’s elastic strap to cover their face tightly but without putting pressure on their ears.Callander has since put his design online on the open source 3D printing community Thingiverse, from where anyone can download it and 3D print the ear guards

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