I had a lot of ASA to spare from a voron 2.4 project. I decided to use some of it printing the prusa rocket engine just for the fun of it, maxing out my printers volume with a height of 310mm. I printed it without any supports, and it does show some obvious issues in areas with large overhangs, but generally the printing quality is pretty good. It took 16h13m to print the entire thing and used a little under 400g of filament, 0.2mm layer height, 10% lightning infill, 2 walls.