Hi, I’m seeing some unexpected time estimates while running the built-in Flow Ratio Calibration tool and was hoping someone could clarify whether this is expected behavior.
I’m running a heavily modified Ender 3 with Klipper. I could have sworn I’ve run this exact calibration before and it finished in roughly 20 minutes, producing very lightweight test chips. This time, selecting the YOLO (Recommended) layout results in an estimated print time of 1 hour 15 minutes.
Looking at the sliced preview, I noticed OrcaSlicer is applying per-object overrides to all 11 tiles:
- Forced 35% infill
- Forced 1 wall loop
- Forced 35 mm/s outer wall speed
The slower outer wall speed makes sense for improving flow calibration accuracy, but the combination of 35% infill and printing 11 separate objects dramatically increases print time on a bedslinger, even with Klipper and high acceleration.
My questions are:
- Is the 35% infill hardcoded for the Flow Ratio Calibration, or is there a setting that controls it?
- Has the YOLO calibration changed in a recent version to use denser, slower test pieces?
- Does anyone know why I remember the calibration producing much lighter, faster-printing chips? I’m wondering if I’m misremembering, if a preset changed, or if there’s another calibration mode I’m thinking of.
OrcaSlicer version: latest
OS: macOS
Thanks for any insight!