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Between classes, a Pennsylvania College of Technology student modified a computer numerical control router that he typically uses for woodworking projects to help manufacture more than 300 face shields for distribution to hospitals in his area.
Matthew A. Semmel, of Palmerton, is graduating with a bachelor’s degree in engineering design technology and an associate degree in plastics and polymer technology. Due to the pandemic, he – like all other Penn College students – has been taking classes remotely since mid-March to comply with the state’s stay-at-home order and social distancing guidance.
He makes the face shields by CNC-cutting an upper bracket from 3/16 polycarbonate sheets to fit around a person’s head. Transparency film sheets are used for the front face shield by using a three-hole punch to make holes that attach to tabs on the polycarbonate bracket.
Semmel explained that a small piece of backer rod – flexible foam typically used in home improvement projects – is added to the polycarbonate bracket to make the shield more comfortable to wear for long periods of time, and a piece of elastic banding is used around the back hooks of the bracket to keep it from falling off.
In addition to his X-Carve CNC router – which, he notes, is very similar to the one in the college’s Dr. Welch Workshop: A difference between computer engineering and computer science – he used an online computer-aided manufacturing software program called Easel, which works with his router, as well as SolidWorks, a computer-aided drafting program, to edit the design he had received to make the back hooks for the bracket thicker, allowing it to be cut more easily on his router.
Matthew A. Semmel, of Palmerton, is graduating with a bachelor’s degree in engineering design technology and an associate degree in plastics and polymer technology. Due to the pandemic, he – like all other Penn College students – has been taking classes remotely since mid-March to comply with the state’s stay-at-home order and social distancing guidance.
He makes the face shields by CNC-cutting an upper bracket from 3/16 polycarbonate sheets to fit around a person’s head. Transparency film sheets are used for the front face shield by using a three-hole punch to make holes that attach to tabs on the polycarbonate bracket.
Semmel explained that a small piece of backer rod – flexible foam typically used in home improvement projects – is added to the polycarbonate bracket to make the shield more comfortable to wear for long periods of time, and a piece of elastic banding is used around the back hooks of the bracket to keep it from falling off.
In addition to his X-Carve CNC router – which, he notes, is very similar to the one in the college’s Dr. Welch Workshop: A difference between computer engineering and computer science – he used an online computer-aided manufacturing software program called Easel, which works with his router, as well as SolidWorks, a computer-aided drafting program, to edit the design he had received to make the back hooks for the bracket thicker, allowing it to be cut more easily on his router.
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