print volume limitations, extruder fan

printer.cfg

@@ -25,7 +25,7 @@ microsteps: 16
 rotation_distance: 40
 endstop_pin: ^P1.28
 position_endstop: 0
-position_max: 235
+position_max: 225
 homing_speed: 50
 
 [stepper_z]
@@ -35,11 +35,10 @@ enable_pin: !P0.21
 microsteps: 16
 rotation_distance: 8
 endstop_pin: probe:z_virtual_endstop
-# position_endstop: 0.0
-position_max: 300
+position_max: 200
 
 [safe_z_home]
-home_xy_position: 100, 100 # Change coordinates to the center of your print bed
+home_xy_position: 110, 110 # Change coordinates to the center of your print bed
 speed: 50
 z_hop: 10                 # Move up 10mm
 z_hop_speed: 5
@@ -62,14 +61,6 @@ pid_Kd: 76.55
 min_temp: 5
 max_temp: 260
 
-#[extruder1]
-#step_pin: P1.15
-#dir_pin: P1.14
-#enable_pin: !P1.16
-#heater_pin: P2.4
-#sensor_pin: P0.23
-#...
-
 [heater_bed]
 heater_pin: P2.5
 sensor_type: EPCOS 100K B57560G104F
@@ -84,6 +75,13 @@ max_temp: 130
 [fan]
 pin: P2.3
 
+[heater_fan extruder_fan]
+pin: P2.4
+heater: extruder
+kick_start_time: 0.200
+heater_temp: 50.0
+fan_speed: 1.0
+
 [mcu]
 serial: /dev/serial/by-id/usb-Klipper_lpc1769_1A80FF0BC0846AAF13CF555EC22000F5-if00