🚸 M900 for FT Motion

Author: thinkyhead

_gcode/M493.md

@@ -1,17 +1,21 @@
 ---
 tag: m0493
 title: Fixed-Time Motion
-brief: Enable/disable and configure Fixed-Time Motion, Linear Advance, and Input Shaping
+brief: Enable/disable and configure Fixed-Time Motion and Input Shaping
 author: thinkyhead
 contrib: narno2202, dbuezas
 
 group: motion
+category: [ motion, wip ]
 since: 2.1.3
 requires: FT_MOTION
 eeprom: true
 
 codes: [ M493 ]
-related: [ M494, M593 ]
+related: [ M494, M593, M900 ]
+
+notes:
+- The K factor for FTM Linear Advance is now set with [`M900 K`](/docs/gcode/M900.html).
 
 parameters:
 
@@ -33,20 +37,6 @@ parameters:
   - tag: 1
     description: Enabled
 
-- tag: P
-  optional: true
-  description: Enable/disable Linear Advance aka Pressure Advance.
-  values:
-  - type: bool
-    tag: state
-
-- tag: K
-  optional: true
-  description: Set the gain for Linear Advance aka Pressure Advance.
-  values:
-  - type: float
-    tag: gain
-
 - tag: C
   optional: true
   description: |
@@ -142,10 +132,14 @@ parameters:
 example:
 
 - pre: Enable Fixed-Time Motion with Linear Advance gain 0.22
-  code: M493 S1 P1 K0.22
+  code: |
+    M493 S1
+    M900 K0.22
 
 - pre: Enable Fixed-Time Motion with ZVD Input Shaping on X and Y
-  code: M493 S1 XY C2 A37 D0 P1 K0.18
+  code: |
+    M493 S1 XY C2 A37 D0
+    M900 K0.18
   post: This also sets the IS Frequency to 37Hz for X and Y, disables Dynamic Frequency mode, and enables Linear Advance with a gain of 0.18.
 
 ---
@@ -195,7 +189,7 @@ Slice and print the tower using 0.2mm layer height using the highest reasonable
 ##### 4. Analyze the Result
 Measure the height of the best looking layer, divide by the layer height, subtracting two layers. For example:
 - The least X ringing appears at height 20mm. So we calculate `15 + 45 * (20 / 0.2 - 2) / 297` and get a result of 29.84Hz.
-- Send the command `M493 A29.84` to apply the frequency to X motion. (For Y you would use `M493 B29.84`.)
+- Send the command `M493 X A29.84` to apply the frequency to X motion. (For Y you would use `M493 Y A29.84`.)
 
 #### More Resources
 TH3D Studio has created an [Input Shaper Calculator](//www.th3dstudio.com/marlin-input-shaping-calculator/) that you can use to get the Slicer G-code you need and calculate the Hz value based on the best-looking layers.

_gcode/M593.md

@@ -3,6 +3,7 @@ tag: m0593
 title: ZV Input Shaping
 brief: Get or set Marlin's integrated ZV Input Shaping parameters
 author: thinkyhead
+contrib: tombrazier, JonBr306
 
 group: motion
 since: 2.1.2

_gcode/M900.md

@@ -1,16 +1,18 @@
 ---
 tag: m0900
 title: Linear Advance Factor
-brief: Get and set Linear Advance K value
+brief: Set/report Linear Advance K value
 author: thinkyhead
 
 group: control
-requires: LIN_ADVANCE
+requires: LIN_ADVANCE or FT_MOTION
 eeprom: true
 
 codes: [ M900 ]
 
-notes: See [Linear Advance](/docs/features/lin_advance.html) for details on how to determine the K factor and a link to our calibration tool.
+notes:
+- See [Linear Advance](/docs/features/lin_advance.html) for details on how to determine the K factor and a link to our calibration tool.
+- Since Marlin 2.1.3 this command also pertains to `FT_MOTION`.
 
 parameters: