Designs available:
Stacked: Prusa mask main part
Stacked: Protective visor by 3dverkstan
The A mask homologated in a hospital in Madrid (unfortunately I cannot recommend the design, simpler is better, so avoid this one)
There is one empty layer between each part to allow an easy separation. Support material not needed.
Hay una capa vacía entre cada pieza, lo que permite separarlas fácilmente. No es necesario material de soporte.
https://github.com/CarlosGS/facemask-print-vertical/tree/master/source_code/adhesion_test
Always check the generated layers before printing!!
Tested with this cura profile (see the result ). I suggest to first try with your own profile and then adjust layer height.
Stacked with OpenScad software, the code is available in the "source_code" directory.