I haven't dialed in PLA yet, but I had a fresh roll of Prusament PETG around, so I started testing my direct-drive Hemera. I printed a cube, then just started cranking out 0.2mm benchies at 40/60/80/100/120 mm/s. I haven't had a printer that was useful at >100mm/s since my ultimaker. (40 on the right up to 120 on the left) This is with the hemera direct drive. I'm impressed with the motion systems ability to throw that 450g around! There was a bit of ringing on the hull at 120mm/s, but really there was some ringing all the way down, the spacing just changed. Here's 120: The surface tended to get a bit more matte as I moved faster, not sure if that is the speed, or the fact that I moved up to 250C from 240 once I hit 100mm/s. PETG is my go-to material for functional prints. I'm pleased I can crank things out a bit faster than I have been. I am not going to take the ringing too seriously until I get a solid table for the TC. I'm on a pretty solid table now, but it has some side-to-side wobble and I can feel the printer coming through. Tomorrow I'm building a dedicated low table for the toolchanger.