Normally, the laser only fires on a need-to-fire basis. Wrongly set parameters or wrongly configured hardware can lead to unwanted laser emission.

Use the list below to troubleshoot if that is the case with your engraver. 

• Laser emission upon powering on>>
• Laser emission when framing/moving between patterns>>
• Laser emission despite no coolant flow>>
• Laser emission despite the open cover>>