Print settings

It is important when printing our PPE to use the right settings, making sure that the final product will perform as promised.

We will try and compile a list of settings and possibly even gcode for popular printers within the community that you will be able to access from this page, but for now, please observe the recommended settings below.

Print Settings

  • 100% Infill | Our face shields need to be able to grip onto an NHS workers head with the added weight of the visor, for long periods of time and with a lot of head movement. As a result they must be printed with 100% infill.
    There are various ways of achieving this, either through 3 or so perimeter walls and 100% infill or increase the perimeters to 10 and keep the 100% infill.
    Both options should work fine, but performance and speed varies between printers.
  • 0.2mm Layer Height | The layer height is up to you but in the interest of speed, 0.2-0.3mm is what seems to be working best for most of us. (Some have noted that a layer height of 0.2mm exactly is required for the stacks to work properly)
  • PLA or PETG | 90% of the units we are receiving are printed in PLA and they work perfectly. PETG is also great!

Quality Checks

Every single unit we receive is quality checked and stress tested before being sanitised. However, our team spends a lot of time on this and every factory session a large number of units has to be discarded due to poor quality printing.
To save our volunteers time and also your own time and effort, please make sure your prints are achieving the quality shown below:

You can see here the surface on the blue unit is very rough (This would at the very least be a B grade unit that we wouldn’t be able to send to hospitals). The orange print however is perfectly fine.
Here you can better see the rough surface on the blue print. You can also see that the extrusions for clipping through the visor are misshapen rendering the print useless.