Visor to protect against Covid-19 etc.
All is included, except a transparent sheet.
The elastic band in the back is 3D-printed, as well as padding for the forehead.
These are usually extra components, and 3D-printing them instead simplifies the production and makes it independent.
The transparent sheet must have the standard hole punch of ISO 838, which are 4 holes of 6mm, 80mm apart, for its fastening.
Important: I randomize the Z-seam to avoid it hitting and breaking the elastic band.
I printed mine with ordinary PLA which worked fine. The elastic band could be over stretched to remove a tight fit on head, and it did not break even at long stretching. But I do not expect old brittle PLA to stand this. It worked well with PETG too, but that was less springy.
This article was first featured at https://ift.tt/3bG7y45 on April 1, 2020 at 09:52AM by KimOyhus
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