After connecting the machine and software successfully, you can enter $$ in “Console” and press Enter to check or modify some GRBL configuration parameters. Please refer to "User Manual for Air-Assist.pdf" for $150 and $151, and "Laser Module Alarm Function.pdf" for $153, $154, $155.
$150 ：The minimum and final gear can be set from 0 to 100, and the default is 25, which indicates the final size during engraving;
$151 ：Maximum airflow gear, which can be set from 0 to 100, with the default value of 100, indicating the size of the airflow during cutting;
$152 ：After the work is finished, the waiting time to enter the standby state can be set to 0~100, and the default is 30 (that is, after the work is finished, wait 30 seconds to automatically enter the standby state); if set to 100, the air pump and laser module will not be turned off power supply. Note: In standby mode, the air pump and laser module power will be turned off.
$157 ：The laser power when frame-previewing during working with TF card. You can set it to 1, 2 or 3, and it is 1 by default (The laser power is 1%).Notes: The power can be set as needed when frame-previewing during working with TF card because the absorption and reflection of different colors of materials for laser are different.
$160 ： Three-axis data abnormality alarm switch, can be set to 0 or 1. If set to 0, when the three-axis data is abnormal, the alarm will not stop; if set to 1, when the three-axis data is abnormal, the alarm will stop.
$161 ： Three-axis data anomaly alarm threshold. The smaller the value, the higher the alarm sensitivity and the easier it is to trigger the alarm; the larger the value, the lower the alarm sensitivity and the less likely it is to trigger the alarm.
$165 ：Stop switch when the protective cover is opened, which can be set to 0 or 1. If set to 0, when the protective cover is opened during engraving or cutting, the laser module will continue to move but stop emitting light; if set to 1, when the protective cover is opened during engraving or cutting, the laser module will stop moving. And stop emitting light, and the buzzer will sound an alarm.
Except for the $ value mentioned above, do not change other parameters at will, otherwise it may cause the machine to work abnormally.