Bed Leveling Calibration
This guide shows how to correct left-to-right bed leveling issues using the mesh compensation system. If parts on one side of the bed print too close or too far from the nozzle compared to the other side, the mesh compensation needs adjustment.
Before you begin - safety and risk
Read the Safety – Before You Begin article to understand the hazards involved in working on the Vision Miner 22IDEX V4 – including electrical, thermal, mechanical, and chemical risks. All procedures in this wiki are provided as recommendations only. By choosing to follow any procedure, you do so at your own risk.
Use this guide if you observe:
- Inconsistent first layer height from left to right across the build plate
- Parts on the left side are too close (over-extruded, squished) while parts on the right side are too far (under-extruded, gaps)
- Parts on the right side are too close while parts on the left side are too far
- Uneven adhesion when printing large parts or multiple objects in Standard Mode
On all Vision Miner 22IDEX V4 machines, automatic mesh bed compensation is measured during Auto Calibration and applied by default. If you experience first-layer inconsistencies left to right, follow the manual adjustment steps below.
How it works
The printer supports two mesh compensation modes:
- Auto Mode – the printer measures the bed flatness during Auto Calibration using the Z-probe and applies the correction automatically
- Manual Mode – you adjust the compensation manually using the RHS Up / RHS Down macros while observing a test print
To switch between modes or check the current mode, go to Macros > System > Calibration > Mesh Calibration > Toggle Mode. See the Macros reference for details.
1. Testing Procedure
Use the 3-square test print to verify and tune bed leveling.
Download the test file
-
Go to Jobs in the Web Interface, navigate to Slicer > Tests, and download
Mesh Bed Test.3MF.Or download directly: Mesh Bed Test.3MF
- Open the file in PrusaSlicer.
- Select the filament loaded in Tool 0 (left toolhead) and slice the file.
Print the test
The test prints three small squares:
- Center square – use this to dial in your Z-offset
- Left square – checks the left side of the bed
- Right square – checks the right side of the bed
- Start the print.
- During the center square, adjust the Z Babystepping in the Web Interface (Status tab) until the first layer has perfect squish.
Once you achieve a good first layer on the center square, do not change the Z-offset again during this print. Leave it fixed so you can compare the left and right squares.
- Let the printer finish all three squares.
Evaluate the results
After the print completes, compare the three squares:
- Center square should have a perfect first layer (you adjusted it with babystepping)
- Left and right squares should match the center square in squish and appearance
If the left and right squares match the center: bed leveling is correct – no adjustment needed.
If one side is different: continue to manual adjustment below.
2. Manual Adjustment
If the right side (or left side) does not match the center, adjust the mesh compensation manually.
Understanding the macros
Go to Macros > System > Calibration > Mesh Calibration/. You will see two adjustment macros:
| Macro | What it does |
|---|---|
| ↓_↑ RHS Up | Raises the right-hand side of the build plate by 0.04 mm (≈ 0.0016 in.) – brings the right side closer to the nozzle. |
| ↑_↓ RHS Down | Lowers the right-hand side of the build plate by 0.04 mm (≈ 0.0016 in.) – moves the right side farther from the nozzle. |
Adjusting one side affects the other. If you lower the right side, the left side becomes relatively higher. Make small, incremental changes and re-test.
Example adjustment workflow
Problem: The center square looks good. The right square is too close (filament buildup), and the left square is too far (gaps).
Solution: Use ↑_↓ RHS Down to lower the right side.
- Run the ↑_↓ RHS Down macro once.
- Re-run the 3-square test print.
- Adjust Z Babystepping on the center square if needed (it may shift slightly after mesh adjustment).
- Compare the left and right squares again.
- If still not perfect, repeat – adjust and re-test until all three squares match.
After adjustment:
3. Returning to Auto Mode
If you adjusted the mesh manually and later want to return to automatic compensation:
- Go to Macros > System > Calibration > Mesh Calibration > Toggle Mode.
- The macro will prompt you to run a full Auto Calibration to re-measure the bed. Confirm if you want the printer to measure the bed automatically again.
Running a fresh Auto Calibration will overwrite your manual adjustments and use the probe-measured value instead.
FAQ
Support
If you could not find an answer here, reach out to our support team.