Mask

The first step is to save your 3D model in the STL format.
Second, go to one of the designated computers that connect to the 3D printers.
Open up your STL file in Cura 3D. There, you can scale the model to the right size and rotate it so that it can touch the build plate. Through Layer view, you can use the scroll bar to see the model layer by layer of how the model will be printed.
Since this model has a flat base, it does not require the “Enable Support” option.
Check all the options to make sure they are fine;
Layer height 0.25
Shell thickness 0.4 mm for resilience
Print speed: 40, the slower, the more precise.
PLA filament 210° C
Adhesion type – brim
Cut off object bottom
File > Save > G-Code.
Prepare the build plate by coating it with stick glue.
Open G Code, make sure the printer is pre-heating, PRINT > Click CONNECT to printer.