Adaptive Bed Mesh

In simple words, an adaptive bed mesh is a dedicated and specific area for the first layer of 3D printing. Like if you are printing a cup, it will be just the first meshed layer of the base of the cup and not the whole area. So, in an adaptive bed mesh, only the specific area of the printing bed is probed and created instead of the whole print, resulting in fine and fast 3d printing.

Now, if your slicer does not support ABM (Adaptive Bed Mesh), you need to find some other alternatives, or your print quality may be poor or lazy. But thanks to Orca Slicer’s built-in support, you can complete the settings for your ABM. You can integrate your Machine Start G-Code command with the Adaptive Bed Mesh in a simple and straightforward step.

ABM Settings In Orca Slicer For Different Firmwares

Go to your Printer Settings, choose the Basic Information option, and here you can see all the settings for your bed mesh, as shown in the figure.

Orca Slicer helps you integrate your mesh settings across all firmware types, including Klipper, RepRapFirmware (RRF), and Marlin.

This setting helps you implement all required settings without any additional or supporting software.

Settings in OrcaSlicer

Bed mesh min:

Most printers have a limited XY offset, so they can’t probe the entire bed. This option enables you to use the minimum bed area. It helps you set the minimum and maximum bed sizes so the printer’s probe stays within the bed. Orca Slicer optimises adaptive_mesh_bed_min/adaptive_mesh_bed_max values, keeping them within min/max points.

The minimum and maximum point values are built into different printers, and only the manufacturer can provide them. The default values (-99999,-99999) show there is no limit on the bed, so use your values to set the minimum and maximum values through Orca Slicer.

Bed mesh max:

As we discussed, the science behind minimum values also applies to the maximum bed value. Since there are no prior settings in the printer, its default value (99999,99999) indicates that the XY offset value for the bed mesh is unlimited. So, use the Orca Slicer and set the values to control the maximum value for the Bed Mesh.

Probe point distance:

In a printer, the default settings for a probe point are 50 mm in the X and Y directions. This option lets you choose the grid size in XY directions on the bed mesh.

Mesh margin:

This option allows you to add additional distance/margin on the adaptive bed mesh.

Note: In Orca Slicer, all settings are inclusive of margin values. So keep your Margin at zero to get the exact values. In Klipper, config at 0, when you set the command BED_MESH_CALIBRATE

G-Code Variables for the Adaptive Bed Mesh Command

bed_mesh_probe_count:

It is a calculation based on the distance between the probe points and the size of the bed mesh area, representing the probe count in the XY direction.

adaptive_bed_mesh_min:

This value defines the starting point of the probe area and represents the minimum coordinate values of the bed mesh area.

adaptive_bed_mesh_max:

This value defines the endpoints of the probe area and the maximum coordinates of the adaptive bed mesh.

ALGORITHM:

For Klipper users, any missing points or lags are identified by the adaptive bed mesh interpolation value. This shows that if a probe count is less than 4, the algorithm is set to Lagrange; otherwise, when everything is normal, it is bicubic.

Examples of ABM Settings in Orca Slicer for Klipper, Marlin and RRF

Marlin:

; Marlin don't support specify the probe count yet, so we only specify the probe area G29 L R F B T V4

Klipper:

; Always pass `ADAPTIVE_MARGIN=0` because Orca has already handled `adaptive_bed_mesh_margin` internally ; Make sure to set ADAPTIVE to 0 otherwise Klipper will use it's own adaptive bed mesh logic BED_MESH_CALIBRATE mesh_min=, mesh_max=, ALGORITHM=[bed_mesh_algo] PROBE_COUNT=, ADAPTIVE=0 ADAPTIVE_MARGIN=0

RRF:

M557 X: Y: P: Learn More About Other Printer Settings:

Air Filtration/Exhaust Fan Control
Auxiliary Fan Settings
Chamber Temperature Control
Setting Multiple Bed Types