Minimized Mask

thingiverse

It is Modelled in OpenSCAD, not at all elegant or but it works. Based on https://3dverkstan.se/protective-visor european A4 4 hole version. The picture has card not acetate because I have not got any yet. The extra tabs were added to stop the sheild from popping out on shake test. Bung all the files in a folder called visor for the includes to work. You can modify the standoff to cope with goggles by changing the os parameter in OpenSCAD file. Sliced in Slic3r with 2 perimeters an no infill at all, that way you only print the outline of the standoff. It means that the stand off is a bit flexible and possibly more comfortable, even when printed in ABS. If you want the stand off to be solid simply switch on the bottom layer. Printed on an old reprap mendel with a 1mm nozzle; can get a layer height of 1.1mm without losing solidity. Speed has to be reduced to 12mm/s for my manky old extruder, still gets print done in 10mins. P.S. There are some calulations to get a 2 thread thick wall at the top of the file, this normally does rectangle plus 2 semicircle thread model but has been fudged for the abnormal layer height. So if you change the nozzle and layer height you will also need to change the build width.