diff --git a/laser-cnc/lasercnc-crealityboard.cfg b/laser-cnc/lasercnc-crealityboard.cfg
index e506d37..6681ce3 100644
--- a/laser-cnc/lasercnc-crealityboard.cfg
+++ b/laser-cnc/lasercnc-crealityboard.cfg
@@ -1,14 +1,3 @@
-# This file contains common pin mappings for the BIGTREETECH SKR mini
-# E3 v2.0. To use this config, the firmware should be compiled for the
-# STM32F103 with a "28KiB bootloader" and USB communication. Also,
-# select "Enable extra low-level configuration options" and configure
-# "GPIO pins to set at micro-controller startup" to "!PA14".
-
-# The "make flash" command does not work on the SKR mini E3. Instead,
-# after running "make", copy the generated "out/klipper.bin" file to a
-# file named "firmware.bin" on an SD card and then restart the SKR
-# mini E3 with that SD card.
-
 # See docs/Config_Reference.md for a description of parameters.
 [stepper_x]
 step_pin: PD7
@@ -43,15 +32,15 @@ position_endstop: 0.0
 position_max: 250
 
 [output_pin laser]
-pin: !due:PC28
+pin: due:PC28
 pwm: True
 hardware_pwm: True
 cycle_time: 0.001
 shutdown_value: 0
-maximum_mcu_duration: 5
+maximum_mcu_duration: 1
 
 [mcu]
-serial: /dev/serial/by-id/usb-Klipper_Klipper_firmware_12345-if00
+serial: /dev/serial/by-id/usb-FTDI_FT232R_USB_UART_AH06OETN-if00-port0
 
 [mcu host]
 serial: /tmp/klipper_host_mcu