The multiple extruders with different materials are greatly speeding up production of face shields, by alternating PETG and PLA shields I can print a dozen stacked on top of each other and the PLA and PETG separate nicely when split apart. Had some issues in the middle of this print, but you get the idea.
Nice I did not use the toolchanger to stack them. But I made 150+ myself until now. But this model: 3 Printers running for two weeks now. This batch contains 73 of them:
