Bed Mesh Not Applied or First Layer Ignores Leveling
Confirm the mesh was saved, the correct profile is loaded after homing, start G-code does not clear it, and the Z axis visibly compensates during the first laye.
Start hereConfirm the mesh was saved, the correct profile is loaded after homing, start G-code does not clear it, and the Z axis visibly compensates during the first layer.
First safe actionRun the first safe check and change one variable at a time.
Proof targetA small representative test no longer shows the original symptom.
Match the failed area to the visual before changing a setting.
Repair progress0 of 8 complete
Step 1 of 8
Confirm the correct build plate is installed and clean.
Keep the problem and target visual open while you make this change.
Why this matters
Firmware created the mesh but start G-code never activates it.
Setting or checkStart G-code
Use the exact mesh load or calibration command required by the firmware.
Expected result
The original symptom no longer appears during a representative calibration or short test print.
Step 2 of 8
Run homing and mesh generation using the manufacturer workflow.
Keep the problem and target visual open while you make this change.
Why this matters
The command order disables or replaces the mesh.
Setting or checkFade height
Affects how compensation reduces across layers, not whether the first layer activates.
Expected result
Measurements, temperatures, motion, feed, or exposure remain stable through the complete test.
Step 3 of 8
Save the mesh and restart the printer.
Keep the problem and target visual open while you make this change.
Why this matters
A different saved mesh is active.
Setting or checkMesh slot
Ensure the selected slot matches the current plate and temperature.
Expected result
No new warning, collision, leak, electrical smell, unusual heat, or material damage appears.
Step 4 of 8
Inspect start G-code for commands that create, clear, or load a mesh.
Keep the problem and target visual open while you make this change.
Why this matters
The applied mesh is inaccurate.
Setting or checkStart G-code
Use the exact mesh load or calibration command required by the firmware.
Expected result
The successful change is recorded with printer, material, slicer, nozzle or resin, and date.
Step 5 of 8
Confirm the active mesh or slot on the printer screen or console.
Keep the problem and target visual open while you make this change.
Why this matters
Bed, gantry, nozzle, or plate position changed.
Setting or checkFade height
Affects how compensation reduces across layers, not whether the first layer activates.
Expected result
The original symptom no longer appears during a representative calibration or short test print.
Step 6 of 8
Watch or feel for small Z corrections during a slow first-layer test.
Keep the problem and target visual open while you make this change.
Why this matters
Firmware created the mesh but start G-code never activates it.
Setting or checkMesh slot
Ensure the selected slot matches the current plate and temperature.
Expected result
Measurements, temperatures, motion, feed, or exposure remain stable through the complete test.
Step 7 of 8
Check gantry, bed mount, wheels, rails, and nozzle for play.
Keep the problem and target visual open while you make this change.
Why this matters
The command order disables or replaces the mesh.
Setting or checkStart G-code
Use the exact mesh load or calibration command required by the firmware.
Expected result
No new warning, collision, leak, electrical smell, unusual heat, or material damage appears.
Step 8 of 8
Create separate verified profiles for different plates if needed.
Keep the problem and target visual open while you make this change.
Why this matters
A different saved mesh is active.
Setting or checkFade height
Affects how compensation reduces across layers, not whether the first layer activates.
Expected result
The successful change is recorded with printer, material, slicer, nozzle or resin, and date.
Controlled test log
Change one variable, then record what happened
This keeps temperature, retraction, speed, mechanical, and material tests from blending together. The history stays private in this browser.
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