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Diffstat (limited to 'docs/Bed_Mesh.md')
| -rw-r--r-- | docs/Bed_Mesh.md | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/docs/Bed_Mesh.md b/docs/Bed_Mesh.md index ada3de29..9ee8df50 100644 --- a/docs/Bed_Mesh.md +++ b/docs/Bed_Mesh.md @@ -542,11 +542,19 @@ This gcode may be used to clear the internal mesh state. ### Apply X/Y offsets -`BED_MESH_OFFSET [X=<value>] [Y=<value>]` +`BED_MESH_OFFSET [X=<value>] [Y=<value>] [ZFADE=<value>]` This is useful for printers with multiple independent extruders, as an offset is necessary to produce correct Z adjustment after a tool change. Offsets should be specified relative to the primary extruder. That is, a positive X offset should be specified if the secondary extruder is mounted to the -right of the primary extruder, and a positive Y offset should be specified -if the secondary extruder is mounted "behind" the primary extruder. +right of the primary extruder, a positive Y offset should be specified +if the secondary extruder is mounted "behind" the primary extruder, and +a positive ZFADE offset should be specified if the secondary extruder's +nozzle is above the primary extruder's. + +Note that a ZFADE offset does *NOT* directly apply additional adjustment. It +is intended to compensate for a `gcode offset` when [mesh fade](#mesh-fade) +is enabled. For example, if a secondary extruder is higher than the primary +and needs a negative gcode offset, ie: `SET_GCODE_OFFSET Z=-.2`, it can be +accounted for in `bed_mesh` with `BED_MESH_OFFSET ZFADE=.2`. |