For big prints with less detail, we developed a nozzle that can print up to 3mm walls, in one go.
"We" is a 3d printing company in the Netherlands, "huur een 3d printer.nl" that rents 3d printers and also has a print-service.
To get an idea of the capabilities of this nozzle, let's look at some figures:
nozzle diameter: 2.5mm layer: 0.5mm print speed: 100mm/s flow rate: 2.5x0.5x100= 125mm3/s
compared to more standard settings:
nozzle diameter: 0.6mm layer: 0.2mm print speed: 75mm/s flow rate: 0.6*0.2*75 = 9mm3/s
so a ten-fold increase in flow rate is achievable, or: 10 times faster printing.
FIXME: add photograph.