u/Lawzy121

Bottom Layer Defects

Bottom Layer Defects

Hi all, I'm looking for some help with my first layer print on a smooth PEI plate.

As you ca see, I have extrusion gaps. I've tried increasing the line width and/or the flow rate. That will reduce the gaps/defects but it also starts to close of the lettering as the line squashes into the letter.

I'm using Orcaslicer on a K1 Max and Creality Hyper PLA, a layer height of 0.16 and a 0.4 nozzle.

The Process config is as follows:

{
    "bottom_shell_layers": "6",
    "bottom_shell_thickness": "0.8",
    "bottom_solid_infill_flow_ratio": "1.03",
    "elefant_foot_compensation": "0.2",
    "enable_arc_fitting": "0",
    "enable_support": "1",
    "from": "User",
    "inherits": "0.20mm Standard  K1Max (0.4 nozzle)",
    "initial_layer_infill_speed": "40",
    "initial_layer_line_width": "0.47",
    "initial_layer_speed": "30",
    "inner_wall_speed": "280",
    "internal_solid_infill_speed": "120",
    "layer_height": "0.16",
    "max_volumetric_extrusion_rate_slope": "60",
    "name": "Playing with top surface mods - PLA Creality Hyper - 0.16 - 0.4 nozzle (+Scarf) - CL 2026-07-03",
    "outer_wall_speed": "220",
    "overhang_1_4_speed": "60",
    "overhang_2_4_speed": "30",
    "overhang_3_4_speed": "10",
    "print_extruder_id": [
        "1"
    ],
    "print_extruder_variant": [
        "Direct Drive Standard"
    ],
    "print_sequence": "by object",
    "print_settings_id": "Playing with top surface mods - PLA Creality Hyper - 0.16 - 0.4 nozzle (+Scarf) - CL 2026-07-03",
    "scarf_joint_speed": "50",
    "seam_gap": "5%",
    "seam_position": "back",
    "seam_slope_start_height": "10%",
    "seam_slope_type": "external",
    "sparse_infill_density": "100%",
    "support_bottom_interface_spacing": "0.35",
    "support_bottom_z_distance": "0.24",
    "support_interface_bottom_layers": "1",
    "support_interface_spacing": "0.35",
    "support_interface_top_layers": "3",
    "support_object_xy_distance": "0.4",
    "support_top_z_distance": "0.24",
    "top_shell_layers": "6",
    "top_solid_infill_flow_ratio": "1.07",
    "top_surface_acceleration": "1000",
    "top_surface_line_width": "0.45",
    "top_surface_speed": "80",
    "version": "2.3.2.60",
    "wipe_on_loops": "1"
u/Lawzy121 — 21 hours ago

K1 Max, Orca and Motor Resonance Rippling

I am breaking in a K1 Max using a 0.4 nozzle with Creality Hyper PLA and a 0.2 layer height. I use Orca Slicer and have been working through the calibration steps. I’m stumbling when it comes to the VFA test and removing MMR.

I was hoping someone has experienced this and could offer me some thoughts on what I can try to remove them.

The images show the VFA test which I used to ID the speed, and examples of a recent print of a cylinder following calibration. Interestingly part of the cylinder is pretty good and others not so. it seems to be worse on the back and the front of the cylinder.

All thoughts welcomed.

https://preview.redd.it/8j38hnn2qh2h1.jpg?width=3024&format=pjpg&auto=webp&s=ab1e11a7d8cf82f3890145bf604e5ea2e3965dd2

https://preview.redd.it/r8cc2rn2qh2h1.jpg?width=3024&format=pjpg&auto=webp&s=88ec1873685fd4b78284ebd35c6db74f4409bc73

https://preview.redd.it/mlql5on2qh2h1.jpg?width=3024&format=pjpg&auto=webp&s=07b25d61be127a7510fbff55c46c6a217c143ece

reddit.com
u/Lawzy121 — 2 months ago

Help With Flow Rate Calibration Waffles

Bit stuck with Orca Slicer flow ratio calibration on my new Creality K1 Max.

I tried running the Flow Ratio test, but the samples came out with this open cross-hatch pattern (sparse infill?) instead of the smoother spiral/archimedean chords look shown in the Orca wiki. I’ve re run the test a few times and appears to be a config issue.

Using Creality PLA Hyper, a 0.2 nozzle, bed temp 55C, temp 225C the standard K1 Max profile. The test seems to be using spiral vase, which I think might be normal for this one, but the result still looks wrong to me.

Has anyone run into this before? Any thoughts on a setting that may cause this?

https://preview.redd.it/cgeafq22n60h1.jpg?width=2268&format=pjpg&auto=webp&s=1b2d9fc028c831dbce97b5b01ae4e74fd4f05c54

https://preview.redd.it/i8a3ls22n60h1.jpg?width=4032&format=pjpg&auto=webp&s=8553605be81c27aea95a0b01837e7eefcc8b4007

reddit.com
u/Lawzy121 — 2 months ago