config: Improve the description of z_tilt z_positions

Reported by @sensille.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

1 files changed, 6 insertions, 3 deletions

diff --git a/config/example-extras.cfg b/config/example-extras.cfg
index 59a82c18..33563ebf 100644
--- a/config/example-extras.cfg
+++ b/config/example-extras.cfg
@@ -313,9 +313,12 @@
 #[z_tilt]
 #z_positions:
 #   A list of X,Y coordinates (one per line; subsequent lines
-#   indented) describing the location of each Z stepper. The first
-#   entry corresponds to stepper_z, the second to stepper_z1, the
-#   third to stepper_z2, etc. This parameter must be provided.
+#   indented) describing the location of each bed "pivot point". The
+#   "pivot point" is the point where the bed attaches to the given Z
+#   stepper. It is described using nozzle coordinates (the XY position
+#   of the nozzle if it could move directly above the point). The
+#   first entry corresponds to stepper_z, the second to stepper_z1,
+#   the third to stepper_z2, etc. This parameter must be provided.
 #points:
 #   A list of X,Y coordinates (one per line; subsequent lines
 #   indented) that should be probed during a Z_TILT_ADJUST command.