I saw a twitter post from E3D showing a Benchy being printed really fast. I wanted to test the limits of my own printer. The printer is a Cetus3D MkII modified with a Duet 3D 0.85 and a Hemera extruder. The fastest actual speed (reported by the Duet web gui) is about 250 mm/s. 20% Honeycomb infill 3 perimiters Layer height 0.20mm Print time 40 min Not a perfect print but in my opinion really good at this speed.