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You are here: Home > COVID-19 > Resources for making Visors to help the NHS with COVID-19

Resources for making Visors to help the NHS with COVID-19

PPE Visors for Medical Workers
PPE Visors for Medical Workers
We have had many requests for advice, support, files, etc from schools who are making visors to help protect the NHS and other medical and care workers through the COVID-19 pandemic.

General Advice from the Design and Technology Association
There is a demand for a large quantity of visors to be used in conjunction with face masks to help protect medical staff from COVID-19. This is not intended to be used in place of a surgical visor, but where the alternative would be no visor at all. The visor can take the form of a disposable item or with the right processing between uses can be reusable or could have a reusable section with a disposable screen. The visor will in most cases be used for a period of four hours at a time so some consideration should be given to the comfort of the device. The visor should be held slightly away from the face to accommodate a face mask and the possibility of prescription glasses, and to reduce fogging due to breathing on the item. If possible, the visor should provide protection between the top of the product and the forehead of the wearer. The size of the visor should be no smaller than A4, covering ear to ear and extending below the mouth. The shape must not splay out at the bottom and be rounded to prevent it digging into the body.

Manufacturing
School's are typically using their Laser Cutters and/or 3D Printers to manufacture the visors.
Laser Cutting
Laser Cutting
Schools have sent us many different designs that they are using. The visor headbands are cut out using polypropylene around 0.8mm thick. The visor screens are normally cut by hand using PVC from 400 - 1000 micron (500 microns is ideal) - these would ideally be supplied on a roll to give natural curvature with a minimum A4 size. N.B. Remember PVC should never be cut on a laser cutter.

The .dtd files in these downloads have been created from DXF files suppied by others. They have been saved to open in V1, V2 and V3 of 2D Design / TechSoft Design.


Design 1
Most commonly used design. Credits to various people.

Design 1: Download 2D Design Files and Instructions


Design 2
Stamford High School design.

Design 2: Download 2D Design Files and Instructions


Design 3
Marlborough College design.

Design 3: Download 2D Design Files and Instructions

Design 3: Download Assembly Video
3D Printing
3D Printing
There are three files that people have told us they have been using for the visor headbands. The Prusa files seem to be the most commonly used. The 3D Printed visor headbands are best printed using PETG / Tough PLA / CPE material for strength compared to standard PLA. The visor screens are normally cut by hand using PVC from 400 - 1000 micron (500 microns is ideal) - these would ideally be supplied on a roll to give natural curvature with a minimum A4 size.


Design 1
Files and Instructions attributed to Prusa RC3 for general 3D Printing.

Design 1: Download STL Files with Instructions Here


Design 2
Prusa RC3 design modified for faster printing on Robox.

Design 2: YouTube video with STL Files in Description


Design 3
These have settings saved for the MakerBot Method and Method X 3D Printers.

Design 3: Download STL Files Here
More Advice
More Advice
Please contact us for more information about outputting to your machines.

Please see the Design and Technology Association's website for more information on how to get invoved in the community.
Need Assistance?
If you would like to talk to us to discuss your options, please:

Call us: +44 (0) 1745 535007
Email us: sales@techsoft.co.uk