Added an experimental workaround for the Z-axis homing bug on the A1. Kindly provided by QQ group member "风信子号"

swap_gcode/LX_1.02.26_slow_safeZ.gcode

@@ -0,0 +1,128 @@
+;===================================
+; This workaround is kindly provided by 风信子号
+;===================================
+
+
+;start change plate
+G28 Y
+G1 Y262 F2000
+
+M400 ; wait all motion done
+M17 Z0.4 ; lower z motor current to reduce impact if there is something in the bottom
+
+G91
+G1 Z-35 F1200
+G380 S2 Z95
+
+G1 Z-25
+G380 S2 Z90
+
+G1 Z-25
+G380 S2 Z90
+
+G1 Z-30
+G380 S2 Z95
+
+G1 Z-5 
+G90
+ 
+G4 P2000
+
+G1 Y15 F800
+G1 Y150 F1200
+
+;This line controls how much distance the tail of the reel hangs. The smaller the value, the less distance it hangs.
+G1 Y40 F1000 
+
+;The platform ensures that new plate can be added properly even when no plate are available.
+;G1 Y260 F3000
+G380 S2 Y264 F2000
+
+;=================================================
+;!!!!!! Z 轴下降，离开顶部
+G91;
+G1 Z-70 F1200
+G90;
+
+;
+G1 Y200 F10000
+
+G1 Y25 F4000
+
+;Avoiding the use of the G380 command is to prevent failure in reaching the correct position.
+G1 Y-1 F20000
+;G380 S3 Y-1 F1200
+
+G4 P500
+
+G28 Y
+
+;start  Shake-triggered plate replacement
+G1 Y1 F100
+G1 Y0 F20000
+G4 P500
+G1 Y1.5 F100
+G1 Y0 F20000
+G4 P500
+G1 Y2 F100
+G1 Y0 F20000
+G4 P500
+G1 Y2.5 F100
+G1 Y0 F20000
+G4 P500
+G1 Y2.5 F100
+G1 Y0 F10000
+G4 P500
+;G1 Y3.5 F100
+;G1 Y0 F5000
+;end   Shake-triggered plate replacement
+
+G1 Y235 F1200
+G1 Y110 F5000
+G1 Y200 F1200
+;G1 Y266 F1500
+G380 S2 Y264 F2000
+
+;After retracting the build plate to the frontmost position, dwell for 1 second.
+G4 P1000  
+
+G1 Y25 F4000
+;G1 Y-2 F20000
+G1 Y-2 F1000
+
+G4 P500
+
+;start  Shake-triggered plate replacement
+G1 Y1 F100
+G1 Y0 F20000
+G4 P500
+G1 Y1.5 F100
+G1 Y0 F20000
+G4 P500
+G1 Y2 F100
+G1 Y0 F20000
+G4 P500
+G1 Y2.5 F100
+G1 Y0 F20000
+G4 P500
+G1 Y2.5 F100
+G1 Y0 F10000
+G4 P500
+
+
+;end   Shake-triggered plate replacement
+
+;move to front
+G1 Y262 F1500
+
+G1 Y120 F2000
+
+;end change plate
+G4 P3000
+
+;===================================
+; return Z to safe standby height after plate change
+M400
+G90
+G1 Z30 F600
+M400